This is how NASA would respond to an asteroid impacting Earth

a reply to: wildespace

Well if rockets don’t work in space, then your topic isn’t really a topic.

a reply to: ketsuko

It would be downplayed as much as possible but some leaked disinformation will be there.

originally posted by: NicSign
a reply to: wildespace

Well if rockets don’t work in space, then your topic isn’t really a topic.

And if rockets did work in space, then the topic is a topic.

a reply to: Soylent Green Is People

But there is no math or science to prove rockets work in space. Just ambiguous videos that could be potentially faked.

originally posted by: NicSign
a reply to: Soylent Green Is People

But there is no math or science to prove rockets work in space. Just ambiguous videos that could be potentially faked.

Yes there is. It is called rocket Science. And Newton did not really post much on Youtube.

Out of interest, what shape is the Earth?

originally posted by: NicSign
a reply to: Soylent Green Is People

But there is no math or science to prove rockets work in space. Just ambiguous videos that could be potentially faked.

Tell that to Tsiolkovsky.

a reply to: OneBigMonkeyToo

You can still substitute out exit velocity and get the same same thing.

a reply to: NicSign

You probably did not watch the math portion of the video posted. So you won’t understand. Are you the type of person who comments without reading the whole article?

a reply to: NicSign

I'm the sort of person that doesn't believe any old garbage some nutjob posted on YouTube. I taught statistics at university level, my maths is fine.

Prove Tsiolkovsky wrong yourself. Prove the videos of rockets in space are fake. Your claim is ridiculous and patently false.

a reply to: OneBigMonkeyToo

Right here in a physics forum. No one can touch the math. m.facebook.com...

originally posted by: NicSign
a reply to: OneBigMonkeyToo

Right here in a physics forum. No one can touch the math. m.facebook.com...

not really helping your case when you provide a broken link... or maybe that's all your theory is, broken.

a reply to: Phage

Phage man ... stop making sense , have some fun.

originally posted by: NicSign
a reply to: Soylent Green Is People

But there is no math or science to prove rockets work in space. Just ambiguous videos that could be potentially faked.

Why not build or buy a vacuum chamber and conduct your own experiment?


www.youtube.com...


www.youtube.com...

a reply to: NicSign

All you are doing is proving that gas does no work on a vacuum. This does not prove that a gas does no work exiting a rocket, or that rockets don't work in a vacuum.

I say 'you' - all you're doing is copying and pasting. What you're actually proving is that you really don't understand the subject.

a reply to: NicSign

Are you the type of person who comments without reading the whole article?

Are you the type of person who believes any old rubbish they see on Youtube?

I did ask you what shape the Earth is, well, is it flat, by any chance?

a reply to: wildespace

it was the vacuum or increase in pressure differential between the can and chamber that burst the can. However, at 4:50 you can see the can top was blown off. The pressure pushed off the can top as it was blown off the can. Like firing a gun, yes there is recoil because pressure builds up between the gun and bullet. The pressure pushes the bullet out and in turn pushes the gun. A rocket is like a gun firing a blank. The powder burns and moves out of the barrel only pushing off the air (assuming the gun powder was not encased in anything). Now if the can stayed in one piece and the top stayed attached, the can wouldn’t have moved.

Second vid you can see it blew off a solid piece first making a scenario like above and then quickly fills up with smoke. When you can see smoke the pressure is greater than atmospheric. The chamber is not under vacuum. You can see the smoke come back and push the rocket. A good demonstration of how rockets need to push off something

a reply to: NicSign

Hyperboles, you're at it again under a different name - how many times are you going to change your name just so you can perform the same psychotic dance? By now I think everyone should be aware of your multiple identities - about a dozen so far. It's getting a little old, isn't it?

You might try writing dystopian science fiction books. You certain have enough material to work with!

a reply to: Phantom423

Change my name? What name?

a reply to: NicSign

So when you fire a bullet from the gun the air just sits there and forces the gun to recoil?

You get recoil regardless of there being a bullet. That should tell you something.

Mostly it should tell you that your understanding of the laws of physics is deeply flawed.

www.cnn.com...

NASA Administrator Jim Bridenstine this week warned that meteors are a threat to the planet.

"This is not about Hollywood. It's not about movies. This is about ultimately protecting the only planet we know right now to host life," he said Monday, speaking at the Planetary Defense Conference in Washington D.C.
Bridenstine talked about a February 2013 meteor that exploded over Russia. That meteor blast shook Russia's Urals region. More than 1,000 people were injured, including more than 200 children, according to news reports.

of course being in NASA he has a vested interest in space stuff
but I think most of us agree with him