Please note: This transcript was auto-generated by YouTube so it may be inaccurate.
0:02 hello everyone to uh simulated engineering Roblox so we will be starting with Mac explaining the real 0:08 life engineering stuff that we've want to explore through blocks a bit so uh 0:14 you want to get started let's open up Roblox Studio 0:24 hi so this is a Roblox Studio environment I just built using free models this is uh 0:30 just loading up yeah uh okay so uh don't worry about I have it up on screen 0:37 there you go so uh you want to get started with the airplane 0:43 uh yeah if the stream is all visible and okay yeah can you see my Roblox Studio 0:49 environment if someone can respond in English 0:55 uh I can not see my Roblox environment uh if you can respond in English please 1:01 hi uh Roblox 1:06 yeah can anyone just please confirm real quick I'm not able to see the confirmation about it 1:13 uh okay I'll just assume they can see it I think they can as well yeah okay 1:19 did we get started now then yeah we'll just get started with the plane okay uh so hello everyone yeah okay so this 1:27 is real quick before we get started uh this is a engineer as I mentioned earlier he's 1:34 he's a prospective engineer and he's he's published some research papers in 1:39 various research journals so he's got he's got a quite a big bit quite a good 1:44 hand with engineering all right awesome thank you so much everyone uh okay let's get started everyone okay 1:53 yeah you can start explaining yeah I think it's Zena so we'll get started 1:58 first uh like we already mentioned we're gonna start with airplanes 2:04 so first I guess you can get started and start flying the plane and while you're 2:09 navigating I'll start about the explanations all right I'll try to get in the 2:15 airplane it's not okay yeah 2:24 so first we'll cover the main engineering principles behind how all of 2:29 this works and then how Roblox sort of it's in understanding how all these 2:35 machines work and then we're gonna go over the code and how you can sort of create it on your own 2:42 okay so we will get started with the plane if you'll just get started in Flight yeah 2:49 um yeah I'm an amazing part I didn't really put a lot of thought into this studio 2:56 environment so we'll just quickly take it off okay we're in there there we go okay 3:02 so first I'll basically talk about the engine that's what sort of lets the 3:07 plane itself fly now the engine in this plane because it's sort of a commercial plane that 3:13 you'd see has a propeller engine so there's two types one's a jet and one's 3:19 a propeller propellers are usually low power and therefore heavyweight aircrafts then 3:25 what you'd see in the flights you normally go in the other hand jet engines are more powerful so they are 3:32 more like for traveling at supersonic speeds uh and more often in military 3:38 aircrafts and talking about this aircraft this is 3:44 well an airplane unlike a helicopter so what the main difference is the wing is 3:49 fixed so the wings don't move now the plane essentially moves in three 3:55 ways which will also show it to you the first is when you move up and down 4:01 or say when you're elevating you're taking off and then when you're Landing so the up and down movement is 4:09 controlled by something known as the elevator if you will look at the back of the 4:15 plane you'll see there is two sort of rectangles and what they're basically trying to do is there are flaps that 4:22 move up and down and basically what happens is when you move it down your plane essentially goes 4:28 up and vice versa this lets you change your height and 4:34 lets your plane go up in the air then the second one is basic turning like 4:40 what happens in a normal day-to-day car that's when your plane moves directly left or right that was showing here in 4:47 the Stream if you can see it and now that's controlled by another surface if 4:52 you'll see there's sort of a fin at the back of the airplane that's what controls the left and right 4:58 so this itself has its own sort of rectangle fin that moves left and right 5:04 this is somewhat like how uh fishes or aquatic creatures move if you'll ever 5:11 see a shark or something it moves its fin back and forth and that's what lets 5:16 it move right and left so that's what works in a planar similarly then the most important is when you're 5:23 turning the plane right we're showing in the game it sort of rolls towards the right or it 5:28 rolls towards the left now this rolling is the most important type of turn so it 5:35 lets you move the plane backwards 180 degrees or perform maneuvers this is 5:40 controlled by the wings you see I'll come to them in a bit but the wings basically they have these flaps and when 5:48 one moves up the other moves down and that's how the plane sort of rolls its way like a barrel 5:55 and these three combined let the plane fly and go wherever and wherever they 6:00 want uh one thing I mentioned earlier that the engine is what lets the plane fly 6:07 well that's not the main important thing the most important is the wings that you 6:12 see the two Wings on the side that's what lets every single plane helicopter 6:18 or anything really fly even Birds so the shape of this uh the shape of 6:25 These Wings is what's really interesting because if we can have a zoom in on the 6:31 wings that would be great if you zoom in on the wings you'll notice it's a bit curved 6:37 shape is a bit uh it's pointy at one end and a bit thick at the other what this 6:43 does the air from the front sort of pushes its way back then the wings are shaped so that air 6:52 takes more time to fly from the top than it does at the bottom so they saw to this physics involved known as 6:59 Bernoulli's principle because speed and pressure they're inversely proportional now the pressure 7:06 below the plane where our character is standing is greater now what happens 7:11 when there's too much pressure that's pushing on something it expands so this pressure is sort of 7:18 worse pushes the plane upwards it's sort of like filling a balloon uh completely 7:24 and then you'll let it go so the balloon sort of travels that again shows you how 7:29 the pressure flows now that's called the Bernoulli's 7:35 principle and that's between the relation between speed and pressure 7:40 one more thing if we'll go under the plane you'll see the wheels that let it 7:46 fly now there's again a very interesting study Behind These itself 7:51 because when your planes taking off or moving it's sort of rolling and it 7:57 requires the wheels but then when it's in the air it's it causes something known as drag which is bad it reduces 8:06 the extent to which the plane flies so we have a question real quick how does the engine work uh 8:14 okay I'll address that so I'll talk about the propeller engine in this case because that's the most common one 8:20 really and that's the really fundamental thing 8:25 yeah so I think you can go to the front that's a better view yeah 8:32 so what a propeller engine does is it basically pushes air 8:39 oh that may sound a bit weird or confusing but you can picture in yeah we 8:45 have a close-up on it so it's sort of it has blades and they spin like a fan they 8:50 spin very very very fast and what this spinning motion does sucks in the air inside and then it 8:58 increases the speed of the air then it increases the pressure because the air is compressed and when it's compressed 9:05 the pressure causes the plane to sort of push it all the way back now this is what lets the plane move 9:12 forward because again you're sucking air and you're pushing it back if any of 9:17 your swimmers you'd also notice that the basic principle of swimming at least for 9:23 your hands is you push the water behind you and when you push the water you're 9:29 pulling yourself forward again because if you push something there's an inverse force that applies on you so that's what 9:37 works with propellers and that's what we've shown over here and these are most common for sort of 9:44 small planes like business Jets then the engine that we had previously if you 9:51 could just show that that's a fusion uh the previous engine we had all right 9:57 sure so this is just a propeller it's just a 10:03 blade and the Rings are again shaped the same way as a normal plane wing now the engine that the plane will be 10:09 flying on had is a fusion now most engines are a fusion because 10:15 day one suck in the air and push it back but then you increase the power with 10:21 which it's pushed back the jet engine it basically increases that speed 10:29 and if you look there yeah you'll also see there's many more 10:35 uh this is fine yeah yeah so you'll also notice there's many more blades here so it actually sucks in more air and if 10:42 you'll go to the back I will show the back 10:48 the back of the engine uh okay oh 10:54 the back of this engine is smaller in size and with that does is again it 11:00 makes the pressure a higher a higher pressure means it's pushed back more and 11:06 that pushing motion what it does it throws the air on the same Wing because 11:11 it's mounted on the wing and now this air that's thrown that's what lets the 11:17 plane fly that's what gives it lift and it pushes it forward and upwards so a 11:23 plane sort of works by the air pushing it rather than it moving for itself like 11:30 how it works in cars and that's how the engine works I hope I 11:36 answered your question I'll go back to the tires if you can 11:42 just show a close-up of that you want the viewers yeah okay sure at the wheels 11:47 so the wheels basically a necessity for an airplane 11:54 because well it needs to catch up speed and when it catches up that speed it's 11:59 in the air then it is not a good thing because the wheels are something known 12:06 as drag and we don't like drag we don't like drag at all what we need to do is reduce the drag 12:13 Force because drag this causes uh the plane to lose out on 12:19 its power so it needs is more power to travel uh why does the plane get turbulence 12:27 okay so turbulence can happen because of a variety of reasons 12:34 like a multitude of reasons the most common is well bad weather 12:40 and what bad weather does is it interferes with the environment so if 12:46 there is thunderstorms and there's rain the flow of air that we're again sucking and pushing and the plane is traveling 12:52 with that's interferred now the rain that falls creates more drag and then 12:59 you need more power to travel through but at the same time because rain is not 13:05 even in all sides and it's sort of pushing the plane down because again water has weight and while it's pushing 13:11 the plane down there's sort of a turbulence because the planes trying to come up and the rains and the weather is 13:18 trying to pull it down then there's also uh one again very 13:23 common phenomena where you're traveling up in the clouds and then there's risk of thunderstorms or it's very cloudy so 13:32 in that case the plane becomes salt its sort of has to uh go through an obstacle 13:38 course because again you need to avoid the Thunder you need to avoid the clouds and when you're trying to do uh do the 13:45 obstacle course the plane has to make some harsh turns some harsh movements 13:50 and the movements itself that's also what causes turbulence because 13:56 turbulence is basically any jolt that you face in flying and that's the most 14:01 common one but in other one that's sort of rare is 14:07 either if something comes inside the engine or if there is a very cold 14:13 weather now the motor is in the plane move and that does create heat but when you're in 14:19 somewhere like the North Pole or the South Pole it is cold and I scan form 14:25 and then this again makes it harder for the engine to move again turbulence 14:30 the other thing and this is the worst case scenario it happens very rarely but 14:36 it does happen in some cases is if something comes inside the engine or 14:42 something comes inside the propeller now you can think of it say as any mixing 14:47 machine or a blender if there's something hard in it that stops the blender from moving or something that 14:55 disrupts it or slows it down that causes the blender to work well less 15:00 efficiently and this is what causes the drag so and turbulence so there's a wide 15:07 range of reasons and these are the main ones so I hope I clarified your question 15:14 uh I do have one more I do have I have a question what okay so you said like uh 15:20 board strikes and uh this is really bad because it blocks the engine sort of 15:26 right okay so uh where it makes uh what it does is kind 15:33 of like you you said that it uh blocks so like what exactly does it do inside the engine I didn't get that part 15:41 okay uh the engine is basically a mixture of 15:47 rotating blades it's a mixture of hot air being pushed back and then it's a 15:53 mixture of sort of funnels or filters at can heat up the air and then they 15:59 push it back how the any bird or any flying object that's obviously an 16:05 obstacle and it can cause damage to any of these so there's a filter right now there's a 16:13 chance that the obstacle can can get stuck in the filter so nothing can pass through and if that happens the engine 16:21 is rendered somewhat useless and that's again a very bad scenario 16:27 rarely happens but in this case usually the recommended course is to shut the 16:33 engine off because you can think of it as sort of an internal car crash now 16:40 when cars have a crash or some crash happens you need to stop the engine right 16:45 now that's the procedure that you have to follow so the plane just Glides like a glider without the engine and that is 16:54 again a very bad case but you need to do it because when the bird comes in it has 16:59 no way to exit it and when it doesn't exit it's stuck inside 17:07 so yeah it's you can also think of it as puncturing your car tire I think that 17:13 analogy works better to explain what I'm trying to say but yeah 17:18 okay uh no this was about the airplane now I 17:27 think we can move on to I'll show you the difference between the helicopter does you can just go to the helicopter 17:33 uh do you want me to open the helicopter 17:43 okay now a helicopter is slightly more 17:49 complicated I'd say and by complicated I mean it's more delicate 17:54 now while for planes you have this very these two very big wings and there's 17:59 more Wings on the back that stabilizers and all of that helicopter has only one thing that truly 18:06 gets it moving those are the chopper blades that you see on the top and these blades again they push the air 18:15 they push the air down and while it's being pushed down the helicopter is up 18:20 in the air so again the same principle here but now what you do to make this 18:26 helicopter move is you change the speed with which the blades move and if you 18:32 can zoom in on the blades uh you'll see that the center part which 18:39 lets it move that is like a joystick right it's like a Controller joystick 18:45 yeah yeah yeah yeah and you can sort of move it forwards and backwards so like 18:50 when we're moving down you'll notice the blades sort of come forwards and that's what pulls the blade down 18:57 oh that's that's kind of cute that's actually kind of cool right oh yeah uh the blades they 19:05 basically move in all four directions wherever you want to go yeah that's cool that's awesome right 19:12 now you may also notice there's also a spinning blade at the back if you'll see yeah we see here 19:19 now this is sort of a safety mechanism isn't it doesn't really help that much 19:27 in flight but essentially because the blades are moving in one way 19:32 helicopter would also move in the other way because there's something known as torque a torque is just rotational 19:39 motion say like when you're spinning a fan and the fan it also spins the air 19:45 around now if we didn't have this blade at the back helicopter itself would spin in the 19:52 opposite motion and with this blade at the back does it opposes the motion and 19:58 it opposes the rotational Force so your helicopter can actually stay stable 20:05 and that's really why a helicopter I'd say is the most delicate piece of 20:11 aircraft that he could have because everything has a very specific role and 20:17 everything is for security and safety so you need the wings at the back to be 20:23 moving at a certain speed the front will be moving at a certain speed and so on 20:29 now how this is actually controlled is through the cockpit now in for the 20:36 purposes of Roblox this isn't really important or significant because you 20:41 don't need them and you don't use them when you're flying on Roblox but I'll tell you about it 20:47 I'm sorry about that okay yeah no problem 20:59 it is cool but it is also very dangerous now for the animals obviously what would 21:07 happen to the helicopter though oh it's dangerous for the helicopter if 21:13 anyone's in it and definitely the animal yeah of course not asking like what would happen like engineering with 21:19 physics in an engineering perspective the animal or object would be there and it would 21:28 either need to be weak enough for there to be minimal effect or well if it's an animal or an object it is going to be 21:36 rigid is going to be hard and then it's going to restrict the flow how if the aircraft's moving and if it 21:44 hits the back uh the back uh rotating uh wings that you see 21:49 if that gets hit that stops working now when that starts working your helicopter 21:56 is sort of going to move round and round and round and round and that is again catastrophic because if it moves at that 22:04 speed if you're and you're inside the helicopter you're again spinning at that 22:09 speed which is again deadly and the helicopter itself will crash because there's no stabilization 22:15 now if it hits the top or the main place that Let it Fly again it would get 22:21 pushed into the main motor area if you can see the helicopter we can have it 22:27 from the top view blades push the air down which means that pushing it down an 22:34 object would get pushed down to the engine part or the main part that 22:39 rotates left right like a joystick and when it gets inside that again the 22:44 rotating part is damaged if that happens obviously the people inside bury deadly the helicopter itself 22:53 most of it has to be fixed or replaced and that again could cost millions of 22:58 dollars and that's also very interesting thing thank you for asking the question 23:04 because when helicopters are being stored and there's certain types of 23:09 helicopters where the bottom part if their wheels animals and say rats they can get inside 23:18 the aircraft through that Gap so what people do when they store helicopters is 23:24 they create an enclosure around its leg so no foreign animal or object can get 23:29 in because if it gets in its internal components are at risk 23:35 and because Aviation is a very delicate piece of engineering you need to avoid 23:42 all of that at any cost that makes sense yeah that's and yeah 23:49 uh do you want me to cover the Roblox part of the plane at least uh the helicopter will leave for an hour 23:58 so we're uh how we can let's say like if you had to okay we have a question though what would happen if the spinning 24:05 is Apparent at the end so if you can go for that first a spinning blades are bent at the ends 24:12 what do you exactly mean by this Oh you mean like if it's bent downwards 24:21 or something would it affect the flying motion as well as another person 24:26 okay one interesting thing not sure if it answers your question I'll try to 24:31 based on what I understood so the blades are very very very big for a helicopter 24:38 and they're also very very heavy earlier on they used to make these 24:44 blades out of metal now they make it obviously out of lighter Composites 24:49 which are lighter but what always happens interesting the blades are not 24:55 sure or a helicopter is resting sorry uh 25:02 yeah I just had I just played the live stream my mistake yeah okay okay what happens 25:12 it's aren't moving it's drooping because it's again so heavy that it has to bend 25:18 oh this happens because as the hinge at the motor that's the only thing that's 25:25 holding the blade and because the blades aren't moving it bends or droops down 25:31 yeah the blades are always bent because of the weight but what happens is when 25:37 it flies so fast that bending is avoided because when it's moved the blades are 25:44 again pushing in a circular motion creating this centrifugal force and the 25:50 spinning spinning spinning keeps the blade straight so yeah 25:56 the blades are bent in the beginning but the rotation itself sort of causes it to 26:03 straighten because of the force that's acting on it and yeah I think that answers your question so 26:10 you can start with the uh we have over 100 people watching us live 26:15 right now so uh thank you everyone for the support uh okay so we'll get to the Roblox part of 26:22 it since this is also a Roblox Studio event uh so um best of 23 I am the lead 26:28 programmer and head of portrait strategy over at drift Paradise uh I'm also currently working into sports projects 26:35 and another one called Pacific mini games uh you'll see that one soon anyway so 26:41 um I used to work in this community we called grow Aviation if you all have 26:46 heard of it uh so the Euro Aviation Community was basically something where 26:52 there's this bunch of Roblox Airlines and they host flights where you actually go on a simulated flight with Roblox 26:59 that's really cool one of the biggest Airlines I used to work with this one it was called aqua Airways if you want to 27:04 check it out they host like flights and all that on just fully digitally that's actually like if you if you just enjoy 27:11 flying and want a semi-realistic experience of flying they have virtual planes just like these a full Fleet of 27:17 it and that's pretty interesting because if you want to go check mine anyway so uh about how you'd make a plane on 27:24 Roblox yourself so while I won't go into too much detail concerning let's just uh overview event uh I'll be hosting a 27:31 event called introduction and to Advanced scripting on Roblox so we'll 27:36 get into a server client infra and uh all that stuff we also have other 27:42 so you know go ahead and talk about the stuff we 27:48 about like programming on Roblox so that's if you want to check that out anyway so about how you build a plane so 27:55 you'll notice when we hop in this free model airplane uh or whenever you search 28:00 for an airplane on the toolbox I'd say even though I don't recommend generally getting free models for the purposes of 28:06 this one I did use free models on sec I'm just too fast in my work speed uh give me a second 28:15 okay I guess the plane I I guess I'm not able to get in the plane so I have to drop myself into that concept 28:25 yeah so yeah by the way this is a very cool party trick if you want to check this out on Roblox you can just like 28:31 move your character I guess uh 28:38 with that and yeah that's just how easy it is I guess I'm still not able to get inside 28:45 after like myself yeah so uh if I were to like let's say 28:52 hop in the buy let's see it over here 29:02 yeah so if I were to hop in the pilot seat as you all can see over here uh when I click the plain tool which allows 29:08 me to uh generally what happened is the plane wears entirely to my character so 29:13 if what it does essentially is if you have a bit of understanding of programming Roblox you understand that 29:18 it Loops through all the parts in the plane and well stamped to the human right root part of my character so over 29:24 here as you can see humanoid root part um so this is called the humanoid root part 29:31 over here so this thing basically allows me to like 29:36 you know [Music] pretty much control the plane as a fit 29:42 for my character so what I can do theoretically is whenever I move the humanoid root part 29:48 which is my the primary part of my character it would move the entire place so essentially what I'm doing over here 29:56 is adding body velocity or something like that so like you know how you fly on Roblox where you have like a fly come 30:02 on it's essentially doing that but by welding the entire aircraft to it so 30:08 we're using engineering principles on a character this is uh most of the three 30:13 plane tickets look through this so basically all the engineering principles we explained for the airplane we're just 30:19 doing that on a character so that allows us to I think relatively simplistically 30:25 uh explore this if that makes sense uh do you all have any questions please feel free to ask them uh yeah so that's 30:33 that's essentially what it does we will be exploring maybe like similar stuff on 30:39 a more basic level in some other events uh if you're not interested and yeah so you want to move on to another one Mac 30:46 oh yeah sure okay let's move on to the other system uh for the other systems uh 30:52 for the hydraulic press at least I'll be I will be exploring the how you can code it uh rather uh if 31:00 you want uh anyway Mac uh what do you want to do you want to do the hydraulic press next 31:05 uh yeah let's do the hydraulic pressure 31:13 drop questions in the chat um you know open to answers if you drop a person let's play your first priority to answer 31:19 it we also have a q a session towards the NDP just want to ask us about any similar any general topic like that 31:25 anyway uh yeah please man continue okay so hydraulic presses basically 31:33 they use less power to exert more power they do is they let you squish things 31:41 for the lack of better terminology and make it easier to uh use power I'd say 31:49 oh it's uh basically hydraulic comes from water and pipe and what we've made 31:56 here uh is a simulated version of it I'd say but essentially the original 32:03 ideology of how it works is based on water and pressure 32:11 so uh hydraulic High hydraulic press has two main parts or I'd say cylinders and 32:19 you can see we have a question uh how to use Roblox to mimic the stuff so again 32:25 this was we just glossed over this essentially what we're doing is welding in all the parts of the plane so you know you have your mod you have a model 32:31 ready build it yourself you build like the plain body and all that stuff you just weld it to the character and we 32:37 rather like twin or like animate character to move the plane obviously we 32:43 can't go into that much detail by the limitations of this event but essentially what you're doing is using principles of welding for that uh if you 32:50 don't know what a weld is a weld is basically what allows you to like stick two things together without actually you 32:56 know making them a union uh that's essentially what a word is like and there's something called motors which 33:01 allow you to change the dimensions of that world uh so essentially what how we could have like between this thing over 33:08 here is essentially what we could just put a motor over here as you can in this thing and put a motor that validate this 33:15 thing to the entire thing and made an angle so that it angularly tweens 33:20 towards this so it changes its angle so it can go down over it it's a long story 33:25 you have to use a couple plugins to do this so we'll have to use export this in other events but essentially what it 33:31 does is you're animating the character to mimic your engineering essentially for the plane uh does that answer 33:37 question if you have anything please feel free to ask anyway uh Mac you can move on okay so you can picture it this 33:45 way there's two pipes I mean you can picture it from the one we've created here as well 33:51 and what how it works is one pipe is big and the other is small and they both 33:58 have any fluid or some water inside them the small one works somewhat like a 34:04 plunger one used in toilets the other one is what I call the ram 34:11 and essentially the plunger causes the ram to move by that I mean uh you take the smaller 34:19 cylinder with the smaller liquid you apply say x Force 34:25 but the flow is again connected to the bigger cylinder and the bigger cylinder 34:31 exerts say 10 to 100 times that amount of force so what hydraulic presses do they help 34:38 you save energy and exert more Force by compressing or pushing liquids 34:46 question are you saying it uses the force of gravity to go down or how does it like conserve energy not really 34:53 gravity okay audience 35:10 yeah so now I have a syringe I connect it to a bigger syringe and at the end of 35:16 the bigger syringe okay there's sort of a handle that can move forward and 35:23 backward or a piston like you have in Minecraft so take this small syringe and it's 35:29 relatively easy to move the fluid or whatever you have outwards right 35:36 yeah I guess I'm moving that syringe connected to the 35:42 bigger one now because fluid or water can't be compressed it needs to go out 35:48 of somewhere and then it goes out of the bigger end but when it goes up the bigger end 35:54 because it's bigger the pressure acts on a larger area because again pressure is 36:01 related to force and area to add the area up and the pressure also 36:06 changes the bigger area of the hydraulic press or the second syringe that causes 36:12 sort of your piston to move and put more Force while you're at it 36:19 and that's how it works basically in layman terms so it lets you use a small 36:26 amount of force to create a larger amount of force that's how you sort of 36:31 compress cars in waste bins is that the thing so all the waste cars once say 36:37 they've expired their life cycle now to reduce the amount of waste you have they're compressed and how this is done 36:44 is through hydraulic press otherwise you would need the weight of 36:49 about three elephants stacked on top of each other to compress and squish uh 36:56 cars or any other devices of that sort because again it's made to be rigid 37:02 so hydraulic presses they let us save time and energy by doing this 37:07 now today we don't necessarily need mechanical Parts like I've told about 37:12 fluids so what happens now is there's all these circuits so at the push of a 37:18 single button you send out a current to allow the compressor to work and that's 37:24 what we've tried to show in this uh model that we've made okay and do you 37:30 want me to explore you can explain more okay so this is one of my favorite parts of the event uh uh view okay explosion 37:38 in three two one okay so what it does is pushes and boom explode that's that's so 37:43 cool so what we uh okay do you want to finish talking and then I'll cover it how we do it in Roblox 37:49 yeah okay so what we just showed you an explosion absolutely to show you how 37:54 anything Works in a hydraulic system now obviously it's not for the sole purpose 37:59 of exporting stuff obviously that's not what we're trying to do but if you have 38:05 a big metal object it compresses it and when it's compressing it there's sort of 38:11 heat generated and the heat as we've tried to shown show through the 38:16 explosion because it's heating up and it's being compressed there can be possible Sparks at all so that's what we 38:24 try to show it uses less force and in this case it's just touching a button or turning the 38:31 lever and with the turn of one level this whole hydraulic press is crushed 38:38 now the most interesting thing about this I'll just tell you how significant it is with the force it takes you to 38:46 press a key or type a message in the chat you can Crush an entire vehicle or you 38:54 can Crush about a block of pure metal pure tungsten or pure gold now if you 39:02 know anything about these Metals it is they are very hard and they're very hard you need a lot of force to crush them 39:09 but that's sort of the beauty of hydraulic press while something like metal could not obviously be crushed by 39:16 us normally with hydraulic press with a bunch of syringes and fluids for the 39:22 lack of better words you can and yeah now you can sort of explain how 39:28 we made it right so this one I'll explain in full detail I'll go code uh 39:34 so uh this is how I simulated this is not using the engineering principles that explained but how you can simulate 39:41 your own hydraulic press and the explosion I just showed you so what and how the explosion works on uh the 39:49 hydraulic press is by let me quickly throw it here 39:59 yeah so this is the script that I used uh so it's not the most efficient script I just store it in a minute or two but 40:05 essentially what I'm doing is we're checking uh just checking depending if 40:11 the hydraulic press button has been pressed or not in a variable we're setting it to true if it has been 40:17 pressed or absorbing pressed we just change that and then we use screen service which is uh essentially what 40:24 allows us to move objects so whenever the button is clicked it changes its color using this line of code and it 40:31 tweets that's essentially what we do uh 40:37 uh so I guess uh even though it's not simulating Roblox physics as I would 40:44 like to do it uh you could theoretically tweet your screen service between 3D 40:49 parts and even that's not the most efficient way to do it any small scale animations are very easy to do between 40:55 service essentially what you can also do is you could store the c-frame values in 41:01 a variable by creating a duplicate of like so what I've done here is create a 41:07 duplicate of the hydraulic press moving parts and just between it to that and 41:12 then tween it back up so using variables to store the C frame values of the 41:17 coordinate frame values uh essentially that's what I'm doing I'll explore in this in my more of my scripting events 41:23 if you're interested uh but more or less this is what we have put explosion part 41:29 uh we just have a part over there and we check when the hydraulic press reaches 41:36 the bottom and just create an explosion of that specific position so an explosion on Roblox is basically 41:41 anything that you can use to explore like um normally what what else would it do it's index code sometimes developer use 41:48 uh exposure to stimulate crashes uh so initially one of if you've seen one of 41:54 the well the story of Roblox videos it was about how developers used uh how two 42:01 cars would crash and we actually did a similar thing to test it and drift Paradise when we did and didn't end up 42:06 implementing it essentially what we do is use explosions to explore the cars itself now while this is not something 42:12 we'd achieve in real life physics it's something that looks cool or in a virtual environment therefore we tried 42:17 it out uh so that's what explosions allow us to do any and like you know even a simulated like something like a 42:23 bomb dropping Simulator game something like that if you're interested in it uh that's what you could use an explosion 42:29 for and you could just set the position it's really easy to use it's amazing because it Roblox physics physics 42:35 engineering engine that's pretty much it uh the other one uh send the I'll 42:40 actually give you all the code in the chat if you want you all can check it out if you wanted 42:48 unless also yeah any questions please feel free to ask 42:54 your questions uh thank you so much uh uh and uh 43:00 uh Matthew okay I think you covered the hydraulic 43:07 part pretty well and I think that covers that one now I think we can move on to 43:12 levels uh okay so we don't have any uh real 43:19 life Roblox demonstration for the lovers but you all can definitely uh check it 43:24 out you all can definitely learn the real life explanation now levers I'd say they're not a very 43:31 cool thing like the hydraulic press but what's really cool about them is all 43:37 that you can do with it now but it basically does it lets you lift 43:43 or it lets you push something by this I mean your flight Force unwanted like the hydraulic press now 43:50 you can exert it the other end now the hydraulic machine like we told 43:55 you lets you exert more Force by applying less the levers also do this similarly now 44:02 the levers were sort of the initial version of it led to the hydraulic system but there's still very important 44:09 now and the beauty of it is it can be used to create much more complex things 44:16 say the swings that you have that's again levels the seesaws seesaws are 44:22 essentially the basic level say even your chance to have wardrobes 44:30 function to even probably a lot of applications in Planes itself 44:35 now it may not be evident at the first glance but this is why I'd like to show 44:41 it to you now the main goal of engineering is to simplify things engineering is basically 44:49 problem solving now for both the hydraulic and the lever the problem is to reduce how much 44:57 strength you need to you do apply to do something anything say it's lifting a 45:02 wheelbarrow wheelbarrows are actually a form of level so levers are designed to reduce how 45:10 much power you need to push something and they basically include something as 45:16 the load which is anything you want to add or lift you've shown it with the use 45:21 of these Red Blocks these red Lego looking blocks that you have and the white frame that you see that's 45:29 called The Beam so that's sort of the base on which everything sits and then the main part about it is 45:37 something known as the fulcrum now if you can you'll see we've shown this and 45:42 made this by these two rectangular looking blocks that are sort of giving 45:47 ground to The Leverage this was letting it stay up and what happens is the whole wheel uh 45:55 you can picture it as sort of a wheelbarrow that works around this fulcrum or these two rectangular blocks 46:02 so while you apply force on one end Force comes out of the other so like in 46:08 the sea saw how it works is say there is two people one person sits on one end and pushes down what happens is the 46:15 other person gets lifted up now I'm sure all of you have noticed but in case of a seesaw what you're 46:22 essentially doing you're lifting the other personal side effect if you've thought about it like that now compare 46:30 the how hard it is for you to lift a person normally with your bare hands and 46:35 then how you do it easily with the help of a seesaw even children can do it 46:41 children yeah so what levels do they reduce how much strength you need to do to exert some 46:48 work and now we've shown them as three types if you'll see if you can just go around 46:53 showing them this there's three types and the main difference only is the 46:59 position of the whole base or what is called the fulcrum and each of those have different 47:06 purposes so the sort of seesaw looking one adds 47:12 if you push something down you want to lift it up and again there's again a very interesting thing about it 47:18 and you're pushing something down it's easier to push than pull 47:23 and you're pushing and acting with gravity now gravity always pushes thing 47:28 downwards but it's easier for you to push down than push something up it's also why if 47:35 say you ever hike or you go about hills it's always easier to come down than it 47:41 is to climb up to the Peaks similar function here similar principle so that's why the main goal that levels 47:49 try to do you have to push something down when you push something down that's how you push the other thing up that's 47:56 how Wells actually sorted a work in the initial days when Wells were mainly used 48:01 that use something known as a lever and then combine it with the pulley 48:07 but yeah that's basically sort of it and again the most interesting thing 48:13 about this is its simplicity now in Engineering in technology in 48:20 coding even on Roblox the key thing is to make everything as simple as it can 48:26 be say if you're doing creating an engineering product project say you're making a drone the main thing is to make 48:33 it as simple as you can and then similarly when you're coding something to use as minimal lines of code as you 48:41 can or try to make everything simple another thing with this in engineering 48:48 is the fundamental one goal is to try to make things separate from each other 48:53 because like we explained for the airplane the parts are connected but they're not 48:59 joined what that does is if there's a problem in one area you can fix that specific 49:06 area without having to uh change the whole thing or anything that's similar to I'd say debugging code if there's a 49:14 problem in your script and that would be in a specific portion it's easier to 49:19 edit out that specific fault than if your error is in your whole code script 49:25 or your whole file similarly in engineering you try to make 49:31 everything separate from each other so they work separately but the benefit is 49:36 combined and yeah that's pretty much it 49:42 okay I think we uh since we're not exploring the Roblox side of this uh uh 49:47 do you just want to say any concluding thoughts before I uh start the Q a 49:54 yeah the concluding thoughts are basically it's important to understand 49:59 and keep in mind the main principles when you're looking in terms of engineering coding and especially Roblox 50:07 to try to make things simple and easy for you to decode and decipher 50:16 you're creating the different plane components what you'll again notice is under the Explorer or workspace 50:23 everything is compartmentalized and that again lets you identify and work on 50:29 individual things which would be opposed to as a whole object or the whole plane 50:34 being compiled as one group so yeah that's basically it I think we 50:41 can start with the Q a here okay alrighty everyone so uh this is pretty 50:47 much towards the conclusion of the event we'll take next five ten minutes per our 50:52 q a if anyone has any questions please please bring them forward uh we do have a few Russian viewers over here if you 50:59 want to ask them uh in Russian uh please 51:04 ask any more questions 51:12 I'll send that from the chat I doubt people are asking the questions 51:20 uh as I expected 51:25 any one other connections please bring them on uh we'll be happy to answer them 51:33 uh uh I doubt uh we have our English viewers asking questions they're online 51:40 as I can say but I don't believe that asking questions uh please uh please 51:48 so I guess I'll just answer some Roblox related questions about myself and I'll 51:53 ask you I guess we can interchange questions uh 52:03 yeah okay yeah okay please uh okay so I'll ask a question for you what 52:10 court you interested in engineering oh okay uh me engineering is really 52:17 problem solving or I'd say and this is very cliche but 52:22 for me engineering is an art of turning a vision or a goal into reality 52:29 or like in the case of the planes and the helicopters and all we had we turned the goal of flying into reality or into 52:38 the reality of the real components and yeah the basic ability to problem solve is 52:45 what you mean okay if a question how accurate is Roblox gravity to real world gravity when calculating okay so okay as 52:54 far as another Roblox is the gravity units uh I am not fully aware of this one 52:59 but as far as I know uh we have 1.9 so one star converts about five centimeters 53:07 as far as I know I write it in a block to close back in the day and because we have a 53:13 1.96.2 graffiti value and starts I think starts per second squared which itself 53:18 default unit will be so it just uses a start version of like real world 53:25 gravity I'd assume because uh we we see that we call we have like our jumping 53:30 animations for example are very consistent with real life so what I'll do is I'll actually jump in real life right now 53:36 uh uh uh so where we like it just takes like about a half a 53:43 second or sometimes like I'm just estimating in my head uh where we have like I just jump in and I land down so I 53:50 assume it's like very real it's done in a way to tune it to a realistic fashion where I can where developers can choose 53:57 what they want to uh I'd assume that's the case uh but uh even Explore how real 54:03 gravity Works uh uh Max thank you 54:14 there uh I think he is yeah okay am I there could you explain how real world 54:21 gravity works perfectly or something so I guess uh we have this start versions 54:27 of this uh where we can you know settle even though because we can set our own 54:32 gravity it might not always be realistic but I'd assume 1.196.2 is just a 54:39 centimeter based conversion vectors one start conversion with five centimeters or 0.05 meters so just quickly okay I'll 54:46 answer this question how do we create a spaceship using Roblox studio so it actually would so 54:52 what I would do honestly is I just like you know we have the open source plane kit right so this is developed by a 54:59 developer back in 2016 when it works flawlessly even to this day so what you could do is build your own plane body 55:05 and just use instructions on that and just like technically you're technically building a plane but you could use that 55:13 as a space space ship if that makes sense there's something called The Open Source flame that you can sorted on the 55:18 developer foreign 55:25 oh yeah so real world gravity again I'd say it is possible to simulate it it is 55:34 done because that is what lets your cars cars move again in all your games that's 55:41 what lets you work so the principle of gravity is present but how accurate it is that depends if 55:49 you are yourself a developer that depends on the criteria you set in 55:55 because you can picture Roblox or any uh platform or anything like that as sort 56:02 of a simulation now the accuracy of the simulation depends on what you and input 56:09 as the code so like when we were making the plane we decided how fast it could 56:15 go and we decided the speed at which it would need to take off and land now similarly you can change the value 56:24 of gravity or how easy or hard you want for movements to be now although this 56:30 gives you a chance to change gravity and try to model it again remember that it 56:36 won't be perfect because for it to be perfect you need to consider every single Factor say your 56:44 character itself how much would your character would weigh say cars you'd have to Define weight for every single 56:51 component and then you'd have to add the gravity value so while it helps while the gravity 56:58 principle is there and it does help you understand and run some calculations 57:05 there will be error based on the system itself so this would be something known as 57:11 systematic error where say you're doing a research project on Roblox one of my 57:17 friends did a similar gravity one on Minecraft actually so while the whole system would have a 57:24 constant gravity there would be something known as systematic error meaning all your data would be off by a bit now 57:32 by a bit I mean I would round around a 20 to 30 margin but it is helpful for 57:39 running calculations and coming up to objectives because the principle of gravity is there is just not as accurate 57:46 as real life so we have uh 57:52 we have three more questions uh so we'll get started with this one uh real quick 57:58 will there be a public repository for some code to test out uh unfortunately these are just three more rooms you can 58:03 look it up in the toolbox it's like playing helicopter but for my introduction to scripting events we do 58:09 we uh we for the upcoming ones at least we'll have a public repository of all the code uh I'll publish it as a 58:15 resource on the dev Forum or I'll publish it as a resource in the description there will definitely be a full repository of all the code I use 58:22 and my upcoming events for sure uh another question um are there any substantial difference 58:28 between this physics engine and physics engine and other games and animals I don't have an experience in UE or Unity 58:36 so I currently say as for roblox's physics engine you can either make your Do Your Own Thing or 58:44 do what like you could send me I remember you can even make something like a car 58:49 without any scripts like I remember you could just like play so he could see it on 58:55 something and uh you can use your valves and all that just to make a call directly without any uh there's 59:02 something called a vehicle seat which allows you to maneuver and it's already pre-written so anyone with even very 59:07 little experience this is what I like about Roblox any super Advanced people like myself or people who are just 59:13 getting started or can do whatever they want and I think that's kind of cool uh 59:18 the other question uh this is for Mac uh what a hydraulic press be able to crush 59:23 another Hydro Plus 59:29 yeah interesting well I guess yeah a hydraulic press can 59:34 technically crush anything just the hydraulic press that does the 59:40 crushing needs to be bigger so you know it actually fits but yeah technically 59:45 yes it can yeah okay also as per uh has a question 59:52 about uh Roblox gravity uh we also have a remote so if we sensitive density to 59:58 one which is mass upon volume uh Roblox eight thousand Roblox units of mass 1:00:03 converts to about roughly one kilogram so I guess you could calculate manually 1:00:10 about like with your 9.8 meter per second Square New so you could you theoretically take word it all and use 1:00:17 real you could simulate like gravity in Roblox for sure set your gravity in 1:00:22 workspace to 196.2 and you could very realistically simulate gravity in Roblox which I find really 1:00:29 cool at the same time but you there might not be some factors like air resistance you'll have to count for that 1:00:34 maybe you have a constant maybe have a variable analysis there's a lot of stuff you can do and I find that kind of cool 1:00:40 uh yeah so uh we do have someone asking questions in Russian right Mac do you 1:00:48 have a question for me uh no I think that's good yeah 1:00:55 okay sure I'll ask you a question 1:01:04 are basically pairs of co-primes I guess where there's like two different prime 1:01:10 numbers and yeah I guess co-primes it's like 13 and 17 and co-primes I guess 17 1:01:15 and 19 I think or four times so like they don't have common factors yeah they 1:01:20 don't have that that's just prime numbers yeah right assume that anyway what's your question buddy 1:01:27 okay uh okay I'll ask you one what 1:01:33 what kept you connected with it because I know if uh Roblox is again a very 1:01:38 unique thing and the level of experience that you've gotten all the work you've got it to do that's completely thrilling 1:01:47 at the same time hard to believe that you've come this far in this short amount of time so 1:01:53 what's got five years ago it's been it's been a while 1:01:59 so my question is what kept you hooked okay so uh I guess you know how there's 1:02:06 like something I I call this like the over saturation effect that's what I 1:02:12 call it uh so what I'll call what I'll say is uh 1:02:20 uh what kept me hooked was first of all through the video game like experience side of things like with the variety of 1:02:27 different experiences you have even as a like a player you could just like you could go from jailbreak to maybe like 1:02:33 something like mad city like there's a similar genre of games completely different games so like uh you have like 1:02:41 very different view sorry my bad experiences uh you have two different complete genres of uh experiences where 1:02:47 you could go from one thing to another and you whatever you find interesting keeps you 1:02:54 hooked I guess that's what makes makes my thing the Roblox quite good uh also being able to be financially rather 1:03:01 close to Independent rather uh and having something that 1:03:09 you know uh like uh Yeah so basically having something that 1:03:15 like helps you financially while being enjoyable to do I guess just kept me in 1:03:21 there and just learning about it I today like I could I couldn't fully answer some of the questions that were asked 1:03:27 and I'd love to be able to learn more go back do my research and learn more I guess the love of learning that's pretty 1:03:34 much it right yeah that makes sense definitely agree with you okay we do 1:03:40 have one more question from scally okay uh will you be able to replicate the gravitational pull of a planet 1:03:45 accurately how do you calculate the speed or mass of the pole okay so you have to calculate the you can do 1:03:52 the calculation part I'll explain the replicate shortly but sure uh well there are already simulations 1:03:58 that have been made they've been developed uh that sort of taken the values of planets my values I mean the 1:04:07 value of gravity and the distance and through that you can calculate the pull because gravitational pull is variant on 1:04:16 one the mass of two planets and the distance between the planets so as long 1:04:23 as you have those two three values you can effectively calculate the pull 1:04:29 the accurateness depends on how correct or validity 1:04:35 you said accurateness the word is accuracy buddy oh sorry yeah sorry my 1:04:41 bad but basically sorry but it depends on how correct your values of the mass 1:04:49 and distances but again that's not completely correct it's an estimation 1:04:54 you can't really take a planet and put it on a weighing scale or something oh yeah I mean if the planet is like the 1:05:02 size of a ball I mean you never know what the future holds for us right anyway uh that was a joke too much yeah uh okay 1:05:09 so if you want to replicate in Roblox I have a weird I just came up with this on the fly so what you could do is like 1:05:15 have a part like this right like which is like super close to the ground put something in in the air right on 1:05:21 anchor them and check on the part hits this part right so use workspace or touches about they call that specific 1:05:27 name so what I'll actually do is we I'll write I'll write some code live for you if you want to check how much time 1:05:33 thanks for that part uh here so let's put in part at uh 1:05:40 height of about let's say this is we have a test part 1:05:54 so you can add a script here and we can also have a base part that's our main 1:06:00 part of that position uh 0.1 right so as soon as it reaches at 0.1 so 1:06:09 we want that workspace.touched so not workspace but part dot touched 1:06:14 colon connect function touch bar and then we have if touch part name equal to 1:06:20 test part actually uh and then script.parent 1:06:29 and if the pair if it's called test part then we 1:06:35 just say like check the second interlapse so I guess we could just like calculate how much time it's taken to 1:06:42 reach that uh so you can just have local seconds 1:06:48 elapsed and have equal to zero and then local 1:06:53 touched equals false uh and then and touched equal to equal 1:07:01 to false while with 0.1 actually equals 1:07:11 and we can have it like just say uh second elapsed 1:07:16 foreign seconds 1:07:29 uh and we have if touched equal to equal to true then great we 1:07:35 just break the loop so now we can get basically uh the 1:07:40 number of seconds elapsed uh where like how much time basically check how many 1:07:46 seconds it took that part to reach the grounder if that makes sense so it 1:07:53 already might have it or it already reached obviously because I mean by the time okay didn't break the loop suddenly I 1:07:59 don't know what happened there I guess it came down too fast so what we'll do is break the loop manually other than 1:08:04 that and touched equal to oh uh I just got to 1:08:10 know your screen isn't visible all right my bad sorry oh shoot uh we were on the 1:08:15 Q and SP my back sorry oh God oh God I'm so sorry uh anyway so this is the code I 1:08:22 wrote oh my bad sorry my bad so this is the code I wrote uh that basically 1:08:27 allows us to calculate the seconds elapsed it's still not going a lot of weight to that 1:08:33 so we anchored this part 1:08:39 and we'll also call it base 1:08:44 and we'll just say workspace or test part dot anchored we 1:08:52 will do false and I guess that should give us the time it takes for the application code 1:09:03 I guess uh okay so there's apparently some thing that's not working I'm probably making a really stupid error 1:09:09 but I think you get where I'm coming from you can just calculate the seconds elapsed and 1:09:14 you should be able to calculate like the gravity using like that so maybe you could actually like use like 1:09:21 non-realist like something that you could simulate in real life like for a physics project I'd use this for a 1:09:26 physics project uh you know this could have been helpful under internal assessments right 1:09:31 uh yeah good yeah it could have been right anyway so yeah uh any more 1:09:38 questions uh you all 1:09:44 uh come on I'm so sorry for the steam shirt 1:09:52 anyway any more questions 1:09:58 uh I guess this is it and if we don't have more questions uh 1:10:05 the ended here then uh you know what let's fix the code I want to fix the code I 1:10:11 feel like I feel like yeah let's fix the code we will want to fix the chord let's fix the code before we add 1:10:17 uh okay so we have uh Rihanna okay so let's print the name of 1:10:23 Dutch part maybe I'm doing something wrong there 1:10:33 okay that's not uh okay so it's not even detecting a touch 1:10:38 I assume that's the case right maybe we can we'll rename the script so 1:10:43 we can see uh and let's add this as a warning 1:11:03 not really okay we don't have a warning anywhere 1:11:09 and it just keeps going okay so that's good uh we don't have warning anywhere so it's not detecting a touch I assume 1:11:16 so I guess the base is a little too too flat I assume so I'll just move that a 1:11:21 bit up okay that should fix it ideally but I'm not sure 1:11:28 okay test part you got it all right we got it we got it 1:11:33 uh we got 0.02 seconds so that's that we got it so you know what you want to calculate 1:11:39 the acceleration to gravity as well let's use the conversion factors let's quickly do it I feel like I feel experimental right now so you all can 1:11:46 get a programming lesson as well you know so we have 0.02002 seconds that it takes to reach 1:11:52 the part uh yeah let's calculate the amount of starts it took to reach it 1:11:58 so let's add uh 1:12:05 maybe like add repeat wait 0.001 1:12:13 until charged equal to equal to 0 and let's 1:12:20 add seconds in that function 1:12:25 we just repeat this until touches true and now that we know touch is true we can maybe get the Y value so local 1:12:33 distance covered equal to so what's higher the test part 1:12:39 is higher right it's the script good parent get parent or test for DOT position minus 1:12:53 so this gives us the actual y-axis like the vertical deviation 1:12:58 uh basically this allows us to calculate how much distance at cover right uh 1:13:06 so after we calculate how many distance it covered uh uh what do you need uh so we have this 1:13:13 formula in physics okay so we have H is equal to u t 1:13:21 plus GT Square Pi 2. since our initial velocity is zero uh we have just gravity 1:13:28 into Time Square so we have a distance and let's convert it into studs okay 1:13:33 so we have our conversion factor 1:13:39 170. so five centimeters that's our uh 1:13:45 conversion factor so our distance covered times okay so it's we have five 1:13:52 centimeters per start so 5 cm equals one start and we have X dots 1:13:59 so we just multiply that by 0.05 and we get meters distance so oh 1:14:06 so local meters equals distance covered times 0.05 right so we have how much 1:14:13 distance we covered in meters so we can just use this formula so we have meters equals here this is 1:14:21 meters equals GT Square by so what we can do is since we already have the value of G and T and we okay we 1:14:28 actually have the entire equation what are we calculating again I forgot okay proving g equals my bad my bad I'm 1:14:35 so stupid okay okay so we just do meters by time squared yeah 1:14:41 so local g equals meters divided by time 1:14:46 squared I have no idea that's a similar in 1:14:53 Roblox I actually put on there's a second lab spice 1:15:00 alrighty let's see if it works ladies and gentlemen 1:15:06 oh wait it's GT Square two by two I got the equation wrong my bad my bad that's I got the equation row it's half GT 1:15:13 squared right yeah uh okay so meters and we multiply that by 1:15:20 two right 1:15:32 let's see if we can 1:15:38 I guess I made another uh oh I forgot to print it I'm so stupid 1:15:45 I am the stupidest man alive I'm going to print everything okay uh so we do print 1:15:52 J and we do different and seconds left let's go I'll actually 1:16:00 add a few more zeros just going to over accuracy 1:16:20 already oh my God that is so wrong 1:16:26 uh what should we do wrong 1:16:31 I guess I'll just subtract the y-axis values rather than just that dot y 1:16:37 third why but I assume it's doing something uh 1:16:48 wrong 1:17:03 oh okay let's check the equation again okay so we do H Pi t squared times 2. 1:17:13 I see what I did wrong here we need to do it 1:17:26 okay we're getting a very abnormal value that we should not be getting so it may be is a problem with different factors 1:17:32 that we're using I guess uh it might be wrong uh but this should theoretically 1:17:37 work if the conversion factor is correct obvious uh uh yeah multiplying by two uh sir I'm 1:17:47 multiplying by two 1:18:00 [Music] 1:18:06 anyway I guess uh this still won't solve our problem um 1:18:11 so I guess we'll end the stream here uh Mac do you have any closing remarks 1:18:17 uh no I think it's fine I think we finished everything the last bit was bit 1:18:23 of a good situation but yeah yeah I think that history got the second to lapse I think this is a conversion 1:18:28 factor that is you uh right other than that I think it's good 1:18:37 and I'll send the link of the mecca trick on YouTube channel yeah or if you 1:18:43 want to learn more about similar topics you can go to the YouTube but that's pretty much 1:18:50 it I think yeah okay you wanna quickly try this let's try if it works directly without the seconds elapsed 1:18:57 oh wait right I'm so stupid I found our mistake I was not doing plus one for seconds elapsed I'm so stupid 1:19:05 oh okay I was doing plus oh my God I'm the stupidest man alive oh my God 1:19:12 oh my God okay but then that's okay so what we need to do is actually make it 1:19:18 like because if it's like actually no way that's right that's actually right this is right 1:19:25 this is right foreign 1:19:31 also for the people saying to uh we're calculating the value of J right so we 1:19:37 multiply it by 2 so it's 2H by T Square so that will give us that so two Edge 1:19:44 Pi T square that gives us the value so that's where meters is our height we multiplied by two let's calculate it in 1:19:50 starts I guess if that works is at colons maybe that's just the problem 1:19:57 yeah I don't think that's so I guess it's just giving us the wrong value then 1:20:03 yeah it delays in the function probably between that something like that uh 1:20:09 we will be ending the stream now I guess the last bit what was a bit confusing 1:20:14 but yeah thank you all so much for tuning in today uh we'll see you all in my next event that's cool 1:20:23 uh that's pretty much it yeah uh yeah goodbye everyone see you 1:20:30 bye hey thank you bye thank you all so much for attending thank you thank you