Shanghai to San Francisco in 100 minutes by Chinese supersonic submarine

[Europa]

It will be a fiasco if this leak will deliberate to mislead some other nations to invest on the something that is a wasting time and money...while China is secretly go other direction such US was trying to fool China by saying that Aircraft carrier is nothing but a sitting duck in battle and realize that China didn't take the bait...then Americans are starting to sell China's threat around the world.

first, it wasn't a fail
second, there may be more tests coming

though i think, these projects should be given utmost priority. different platforms, different models, different teams should be considered

 

[Nova2]

Out of all the cars that have crashed into the water at high speed over the years, can you find me one example of a car that has been broken into pieces?

Bro i think he is correct to some extent ,falling on water at high speed is like landing on concrete...like the car crashes at few water racing championships...

but that doesn't mean they dont race anymore or should people out there stop researching and inventing such things

 

[Chinese-Dragon]

but that doesnt mean they don race anymore or should people out there stop researching and invinting such things

They didn't crash "into" the water though, or fall "into" the water, they crashed into other boats, as you can see in the first picture.

A boat is on the water so I don't see how it could crash into the water, unless it fell from a height.

Bro think he is correct to some extent ,falling on water high speed is like landing on concrete...

People always say this, falling onto water from a great height is like falling on concrete.

It's true, and they key word is "like". That's what it feels like for a human.

But it's clearly not the same thing.

Remember when you were young in the swimming pool, and you smashed the water with your hand and thought, wow, that hurts? Well imagine smashing your hand with the same force into the concrete sidewalk. Clearly not the same thing.

If you were to jump out of a 3rd story window, and land on your butt, would you prefer to land in a pool or a concrete sidewalk?

 

[Viper0011.]

China has moved a step closer to creating a supersonic submarine that could travel from Shanghai to San Francisco in less than two hours.

New technology developed by a team of scientists at Harbin Institute of Technology's Complex Flow and Heat Transfer Lab has made it easier for a submarine, or torpedo, to travel at extremely high speeds underwater.enveloping a submerged vessel inside an air bubble to avoid problems caused by water drag.

This is nothing new, similar tech was tested decades ago but was listed extremely risky. A better option is to create and underground tunnel and run MagLev on it. That would be much secure and will probably work. However, all you need is ONE MM puncture point and bam, the entire project is destroyed by the water pressure and associated kinetic energy. But a train or a capsule at higher speeds is much safer than a sub-marine in a bubble. Remember, every time you cross sound barrier, the bubble will have some damage due to the sonic boom. Over time, it's structure would become compromised and its structural integrity will start to reduce, puncturing or breaking the bubble one day.

 

[WishLivePak]

bye bye marine life

 

[Nova2]

They didn't crash "into" the water though, or fall "into" the water, they crashed into other boats, as you can see in the first picture.

A boat is on the water so I don't see how it could crash into the water, unless it fell from a height.

No, those two pics are not related to one another,in the first pic it may seem like the boats are too close to one another or that they might have had a collision,bt it is just the camera angle,its all about the speed at which these boats travel(200km/hr+) ,if water gap is created between the water and the boat it can send it out of control,which can lesd to acciedents as fatal as the one you can see in the bottom pic,they don't need to collide for such things to happen,water indeed acts like a concrete at higher speed.there are loads of such videos on youtube ,you can have a looks at them and figure out yourself ,bro.

People always say this, falling onto water from a great height is like falling on concrete.

It's true, and they key word is "like". That's what it feels like for a human.

But it's clearly not the same thing.

Remember when you were young in the swimming pool, and you smashed the water with your hand and thought, wow, that hurts? Well imagine smashing your hand with the same force into the concrete sidewalk. Clearly not the same thing.

If you were to jump out of a second story window, and land on your butt, would you prefer to land in a pool or a concrete sidewalk

Yep,splashing your hand in water does hurt at times,but its is different when you are in motion and you try to repeat the same,your hand will either bounce ,or you may fel the force,the greater the speed more would be the force.falling from a cycle at 30-40 km/hr and jumping from a bike at 200km/hr has a world of difference,the same applies for someone sitting in a boat,the magnitude of the crash depends upon the speed at one is traveling.

 

[Chinese-Dragon]

water indeed acts like a concrete at higher speed.

Water does not "act" like concrete at higher speeds, it FEELS like you hit concrete, that's because of the pain receptors on our skin.

Like I said, if you had to jump out of a 3rd story window, and land on your butt (the safest part of your body to fall on), would you prefer to land in a pool, or on the concrete sidewalk?

People jump into pools from great height all the time, in fact they set up springboards at high levels for people to "cannonball" into the water.

But if you tried landing on the concrete, you would probably fracture your tailbone and maybe much worse injuries.

So while it may "feel" like you fell on concrete, it is absolutely not the same thing.

 

[Nova2]

Water does not "act" like concrete at higher speeds, it FEELS like you hit concrete, that's because of the pain receptors on our skin.

Like I said, if you had to jump out of a 3rd story window, and land on your butt (the safest part of your body to fall on), would you prefer to land in a pool, or on the concrete sidewalk?

People jump into pools from great height all the time, in fact they set up springboards at high levels for people to "cannonball" into the water.

But if you tried landing on the concrete, you would probably fracture your tailbone and maybe much worse injuries.

So while it may "feel" like you fell on concrete, it is absolutely not the same thing.

Agreed, if we are talking about vertical motion ,in case of someone jumping from 3rd floor of a building,he may not fracture his hip,as seen in many diving sports across the globe.
But i was talking about horizontal motion ,where damage caused to a human body may depend upon the speed a which someone is travelling,
as i said travelling at 30km/hr may not do any damage but travelling at 200+ km/hr may kill you,or leave you with life long injuries.
In that boat in the first pic,the driver sits inside a specialised cabin to save himself form the extreme force exerted on the boat ,in case of an accident ,as the boat is ripped apart because of the fact that water does acts as concrete at 200+km/hr,the same can be applied to a submarine ,when it is inside an air bubble and say if the buble bursts ,it may encountre a force which could probably rip apart a submarine.

 

[JonAsad]

Awesome ! Great job done by HIT and the scientific community world over,never knew about supercavitating technology, wonder if anything like the bubble can be created for an Aircraft as well to reducd the drag or say in a way defy gravity ,just thinking if it can happen


You mean like this my friend (underwater)

holy kaka moly-

 

[jaydee]

Guys you are missing the point here.Itz isn't necessary that they will succeed but great scientific discoveries happen when you are willing to go on the uncharted territory.We should applaud the Chinese for this attempt.It is very inspiring to say the least.In last two centruies it was Europe and USA leading the world in R&D.But it seems China will soon take the lead.You make it big when you dream big.Kudos China.I think Pakistan will reap the benefits of all this Technological progress of China both in military tech and in civilian tech.

 

[cirr]

Guys you are missing the point here.Itz isn't necessary that they will succeed but great scientific discoveries happen when you are willing to go on the uncharted territory.We should applaud the Chinese for this attempt.It is very inspiring to say the least.In last two centruies it was Europe and USA leading the world in R&D.But it seems China will soon take the lead.You make it big when you dream big.Kudos China.I think Pakistan will reap the benefits of all this Technological progress of China both in military tech and in civilian tech.

My sentiments entirely。

Got money and time。Burn both and you might end up with something that is totally different from what you set out to achieve。

Something extremely significant。

 

[Europa]

Guys you are missing the point here.Itz isn't necessary that they will succeed but great scientific discoveries happen when you are willing to go on the uncharted territory.We should applaud the Chinese for this attempt.It is very inspiring to say the least.In last two centruies it was Europe and USA leading the world in R&D.But it seems China will soon take the lead.You make it big when you dream big.Kudos China.I think Pakistan will reap the benefits of all this Technological progress of China both in military tech and in civilian tech.

it has already gives excellent result, it can travel from sanghai to san francisco in less than two hours. once, prototype is tested which i believe has already been tested (otherwise, there wouldn't be any news report, remember china is still the most secretive, what you see in public domain is the just the tip of the iceberg) all the issues related to safety measures will be considered. the speed will gradually be enhanced, now its less than two hours but research will try to make it within minutes. apart from military use, it will have tremendous effect on civilian underwater travel in the remote future. just imagine, after morning breakfast, one leaves home in sanghai and goes to san fransisco in minutes to do office job and then returns home in the evening

 

[kbd-raaf]

They didn't crash "into" the water though, or fall "into" the water, they crashed into other boats, as you can see in the first picture.

A boat is on the water so I don't see how it could crash into the water, unless it fell from a height.



People always say this, falling onto water from a great height is like falling on concrete.

It's true, and they key word is "like". That's what it feels like for a human.

But it's clearly not the same thing.

Remember when you were young in the swimming pool, and you smashed the water with your hand and thought, wow, that hurts? Well imagine smashing your hand with the same force into the concrete sidewalk. Clearly not the same thing.

If you were to jump out of a 3rd story window, and land on your butt, would you prefer to land in a pool or a concrete sidewalk?

Not really CD. The viscosity of both concrete and water which we can ultimately call a measure of it's ability to transfer momentum is about the same when the shear rate is very high (i.e high collision speeds).

edit: Actually I'm wrong,water is a Newtonian fluid.

 

[jaydee]

So what if they don't the break the barrier of sound but would atleast learn some tricks from it.Even if they manage only 500 miles/hr,still it will be huge jump over present tech.If we analyse it is technological superiority of America which makes it unsurmountable as a foe.But where did all that tech come from,ofcourse basis research in universities.Look how much they are spending on R&D and how much we are spending.Do u think their investment in R&D will go waste.

 

[Chinese-Dragon]

Not really CD. The viscosity of both concrete and water which we can ultimately call a measure of it's ability to transfer momentum is about the same when the shear rate is very high (i.e high collision speeds).

edit: Actually I'm wrong,water is a Newtonian fluid.

If you have a source, I'd love to read it.

And at what speed does that happen?

But like I said, if you were to jump out of a 3rd story window, and land on your butt (the safest body part to land on), would you prefer to land in a pool of water, or on the concrete sidewalk?

A better example, imagine going to a pool with a high springboard, say 3 stories above the ground. Imagine the difference between jumping off it and landing in the pool, or landing on the concrete beside the pool.