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Why does the model have a tail rudder if the guy said they know how to control yaw with vents located at the nose? Why not a smaller tail or increasing raise edge with vents.

This is the engineer that got fired for saying carbon fibres is not strong enough

I am no rocket scientist but why can't we use the rocket thrusters for this

China has no problems of building the base in the moon !!! With technology n money, China can soon build it

You are about the design of the craft. Titan was descending more than twice the speed per meter. Too fast for safety reasons. Then they should have realized to stop and return to the surface... Once Titian realized it had a problem, the sub could not return to the main vessel because of electrical issues. By then the sub already had water into the battery and electronics that control the motors... Once the crack had started... the game was over... So sad... =)

With the frame of Titan being made from carbon fiber but the front snd rear being made from something different both materials would flex differently when subjected to force. An absolute disastrous decision not to make the entire sub from a metal.

Right off here something that got my attention is that the carbon fiber hull was only 5 inches thick. That just sounded very inadequate. Why not 8 or 10 inches.

unfortunatlly, you have failed in this assingment, and there is why: you didnt understand the loading. you have equal pressure from each side and tubular space you would like to protect- bare with me, we are still analysing, we will get to the material later... so, you have pressure on the surface of the tube, which is a lesser of the problem- bigger is the same pressure being exerted on the tube sides- what appears to be an axial force running along its lenght: two half domes at both ends would in theory transfer the pressure on tube edges- and that is where the problem is- there is nothing to receive it. we can consider carbon fiber in this case to be a composite material- fibers are applied in certain fashion, but bonding material is the key, what is it- think of concrete, it is good with pressure but cannot withstand tension- hence reinforcement. if we have a homogenous slab, with no beams- than reinforcement has to go in both cardinal directions within its plane. same is true for carbon fiber. in this case "engineers" and "innovators" should have tried to criss- cross it, to create some sort of cage hoping to achieve enough structural strength- to avoid applying force along side fiber axis or straight across it- spatial structures comes to mind. moreover, thickness is just making the problem worse- its own moment of the inertia within cross section is creating a havoc. one thing you got right: fibers in general are good for tension only- you dont have to think of reinforcement, take wood: perfect for tension, not very much so for pressure, unless the size of the cross section is proportionally bigger to its lenght to avoid deflection, one thing that caused this "submarine" to fail- if it actually happened at all. if they were serious, they could have tried to apply pre-made sheets of carbon fiber, not very thick, just wrapping it around in spiral fashioon- paper tubes are done in the same fashion? there is also question of thermal dilatation- lets say between two materials, titanium and carbon fiber: fiber may be inert, but steel is certainly not? than- does carbon fiber becomes brittle under conditions of high pressure and low temperature- sure it does, more especially because of contradicting state material is in: increasing the pressure rises the temperature? if this is not understood, no "computer model" will help you- remember: there was the world before computers, most of it is still standing... however, being an young engineer, thread carefully- diploma or degree means nothing, it is there to give you right to work, to qualify- real work is ahead....

It also imploded from external pressure.

Perhaps he should've studied hockey sticks. Carbon Fiber is imperfect and it breaks. RIP it should've been allowed to go.

the... THE!!! THE Moon

If the transcript is real and than this video is how it went. Than they dropped far too quickly, causing way too much pressure to pile on and everything stopped working and they doomed themselves. You start putting everything together and it starts making real sense, regardless of who you are in life or what you know. I know the basics of pressure from games I’ve played … I would of done all the checks on the sub by default and if I noted anything wrong at all, I’d have not allowed it to be used. People may of gotten angry with me but at least I would’ve saved lives. I hope everyone involved is happy with what they made happen.

4:15 I love how he said the greenhouse effect which is how it's believed the Earth warms... He was smart to not say it is how the Earth warms because it's not. If the greenhouse effect were true it would get hotter every year but it stopped getting hot for 20 years. That's why they changed it from global warming, to climate change. And in the 1970s they thought we were going into another ice age before global warming started. Once you know the history that it was all a concept thought up in the early 1960s by the club of Rome as a global taxation. If people thought the Earth was going to be destroyed, they would be willing to pay extra taxes to prevent it.

nice job

Yes u can make a carbon fiber hull work for submersible, just make it very thick and apply the fiber layers lengthwise, not cylindrically--effectively making the hull concave--the carbon fibers will then expand rather than contract under the the water pressure. The titanium endcaps should probably also be reinforced w/a hexagonal frame, to help keep it from compromising the hull. And that's it--fyi, there's a company Composite Energy Tech, that makes carbon fiber submersibles, and they have an excellent reliability record

Spit out what you have inside your mouth so that you can pronounce the words correctly. Polished your accents.

"Crater" Disney Film🎉

It's not just meteors or micrometeors. When Apollo 12. It landed within about 180 meters of the Surveyor 3 spacecraft in November 1969. The lunar module descent engine kicked up dust that hit the Surveyor lander like a sandblaster. Astronauts Pete Conrad and Alan Bean even commented on the effect during their moonwalk. They observed that the dust had removed some of the darkening on Surveyor 3, revealing its original white paint in those areas. Every meteorite that hits the moon will kick up dust and rock and send it out at ballistic speeds. Most of that dust and rock will reimpact the moon someplace else. Every rocket that lands on the moon will shoot out dust and rock at ballistic speeds. There is no air to slow anything down so whenever gravity pulls whatever projectile back down it's going to be moving at some place around the speed of a bullet. If you're walking around in a space on the moon and a rocket land some mile away within a few seconds you could be hit by spray of debris. Or that spray of debris could be launched into a a ballistic trajectory which could come back down hours or days from when it was kicked up. Every vehicle driving around the Moon for any length of time that it's supposed to be holding humans or robots for that matter is going to need to be an armored car. That's the same for any habitat. I think we pretty well have understood that since Apollo 12 and that's why we haven't gone back. It's going to be incredibly difficult to have anything like a permanent base on the moon

INDIA NEEDS TO STOP WASTING $$$BILLIONS ON SPACE GLAMOUR PROJECTS & SPEND ON FAMILY PLANNING, GREEN, ENVIRONMENTAL, RE-FORESTATION, RENEWABLE ENERGY, ETC PROJECTS TO SUSTAIN ITS OUT OF CONTROL POPULATION GROWTH & PREVENT POLUTION.......ACTION REQUIRED NOW!!!

Channel sucks

We need English speaking channels!!!

Why not just use concrete?

Brother your video is very awesome. But maybe you should try your voice with energetic emotions, that will make it more entertaining rather than get bored. so, try this once.....

Well then multistage them (cascade the heatpumps), you can reach much higher temperature differentials still, all with high COP! Also what is stopping the energy stored in the compressed side from driving the compressor as it expands? Nothing, but currently that is just wasted! Also if you don't just look at the heat or the cold but look at the maximum temp difference from the hot to cold side this leads to very high grade heat with a high degree of conversion efficiency, potentially exceeding the point where the second law of thermodynamics can hold!

Boeing rejected the carbon fiber because it was too old so it was sold and this dude who built the DEATH trap apparently it was just a matter of time!

No building needed, send the spacecraft as modular units. They can be linked up and turned into a sprawling structure. Elon Musk plans on launching 3 to 4 cargo ships a day to outfit the lunar modules. In a 30 to 40 day period landing 3 or 4 cargo/habitat ships a day is not an impossible goal. There should be a continuous train of cargo ships to and from the moon on going. The first 40 days will establish the habitats, work facilities, laboratories, warehouses and equipment storage. I hope they use thrust vectored flying platforms to explore with. They need to harvest helium3 then figure out how to make energy with it.

Melting regolite with Frenel lenses is must be genius idea..

Interesting 👍

That is not correct, here is a link to the world's largest heat pump right now for CO2. It can give 85-90 degrees C. ruclips.net/video/-bIlAkTDw8Q/видео.html

I wish my heat pump cooled down to below 78 when it is 115 degrees out

You can not achieve a COP of 3 while increasing the temperature from -70 °C to 500 °C, the amount of heat possible to pump against that temperature difference is in practice negligible compared to the amount of power required, "in theory", with a system without any losses, it would be possible to pump about 30% as much heat as the amount of power used. It's not difficult at all to achieve high temperatures with heat pumps, the main problem is that it's impossible to achieve high COP when you need to create a high temperature difference. Your explanation of the principle seemed strange, you can't pump heat with isothermal compression, without a change in temperature, the change in temperature is the very goal of the heat pump, you can't improve the efficiency of the process by making it useless. You can improve efficiency of compression by dissipating heat of compression very well, but when you want the heat, you don't want to dissipate it.

Don't expect anyone else being able to copy this. This wing will simply not work 4 them.

Finally... a worthy contestor to Harrier Jet.

can it rise into the mesosphere? because the environment there is cold, it means that the most effective engines are the nitrogen thrusters, but they always used to run out of fuel. tropo = swim in air strato = swim in hot gases meso = swim in cold gases thermo = swim in magnet particles exo = swim in higs boson. now make an ion-drive engine, I know you can.

Could this be used to design heat pumps that can work with a pretty good C.O.P. even in extremely cold temperatures occurring at the (geographical) poles? Able to keep building temperatures inside around 20°C with radiators optimized for warm heating without ventilators?

Great video, thanks for sharing!

We mustn't overstate Bernoulli's flow dynamics as being all-encompassing when Newton's 2nd law is substantially more influential. A geometric synergy calculation combining both requires formulation.

Very interesting, thank-you.

Great explanation, thanks!

Laminations when failing do one thing

What you missed was the safety factor of the carbon fiber full was NEVER verified!

Dude, you're talking about shapes of submersibles but showing submarines.. Submarines are not going to the depth of 1000 meters of deeper.. Submersibles rather go deeper even to the mariana trench and yes, the cylindrical shape matters. Imagine a rope that is tied in a circular pattern. push from inside the rope across all directions it will withhold all pressure as long as the tied ends can hold up. But push from the outside of the rope from ay direction it will crumble. Thats the difference. Using CF materials are great for aerospace of any industry that need to handle pressure pushing from inside out.. not the other way. And CF material is not homogenous to other material used, which is Ti (titanium) both are different materials. Using CF in under water voyage is suicide unless changes and advances made in that field can disprove this proven theory in practice. Ocean gate and their owners and engineers suffered from some time of Hubris that they are better than industry leaders and the knowledge they gained. Instead felt safety worries are crap. I mean when you have someone like Stockton Rush who is risking his own life building a homemade small plane asking his probable clients to jump on it without certification and in this case a submersible, they are not confident but affected by bias and hubris

785 thousand pounds of pressure equals 356thousand kilos of pressure that's like a ship sat on top of titan lol

Carnot theorem guarantees that this will be barely better than using resistive heating.

great stuff. knowledge is great

So your pre-prototype idea is bigger, more powerful, cheaper, more efficient than those, build by the thousands, sixth generation wind turbines. The idea mostly is, the prototype mostly isn't.

The cost of building on the moon will be astronomical. The cost-benefit analysis is not very promising. Maybe we should solve the Earth's climate change problem first?

Titan did have longitudinal fibers, but there is speculation that the fibers were not properly straightened.

great video, thanks for sharing with us

How did you generate the video of the guy speaking?