SakeTami
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The Illusion Of Rocket Thrust

A quick 10 minutes to explain what's really going on with rockets.  Enjoy!

https://youtu.be/kAZMBAVRsCo

The Illusion Of Rocket Thrust

Comments

Only the best rendering software for FranLab.

Fran Blanche

A lot - the sting is definitely gone. Thanks!

Fran Blanche

An excellent explanation and great graphics!

Sadiq Mohamed

When the molecules pass the narrow part (throat) of the DeLaval Nozzle it goes sonic velocity therefore the air cannot transmit back beyond the throat.

Daniel Bingamon

Reminds me of the story about an editorial in the NYT that said that Goddards rockets can't possibly work in a vacuum. They only published a short retraction after Apollo 11 launched.

Maarten Daalder

This. Also explains nozzle shape for atmospheric vs. vacuum.

BobC

Nice one!! Now do bumblebees!!

Great. Now I have to go out and buy some balloons so I can inflate 'em and let 'em loose untied and ponder their crazy trajectories 'because Franlab'. 👍👍👍

That's a very good explanation, similar to but better than the one in my Daily Mirror Book of Space from 1970.

David Peaker

I have not heard the pressure explanation before, usually this is explained by conservation of momentum. Momentum of exhaust has to be balanced by momentum of the rocket, as momentum is a vector.

Lovely video Fran!!

Geoffrey Waldo

All good now Fran! Thanks

It's still broken for me Update- it's working now!

David Peaker

Nope, I'm getting the "Video is Private" message too.

The Illusion of Patreon Videos... (jk)

John N Nelson

YouTube corrupted the first upload, so I had to reupload it with a NEW LINK. Seems fixed now!

Fran Blanche

All good. I can now watch!

Geoffrey Waldo

I also get only "This video is private".

Michael F Barushok

Ditto on the private issue as patron. Might be a Patreon issue…

Geoffrey Waldo

Same here.......

Got message vid is pvt. I am patron member, what up Fran?

I just get a message saying this video is private. :/

Nicholas Wilson

As a complete aside, how close to being fully funded is your zero-g trip now? By fully funded I mean how much of your savings have been replenished by the GoFundMe appeal?

Dr Andy Hill

Like you Fran, I had no problem with how and why rockets work, I guess my physics background and understanding of Newton's laws of motion, allowed me to understand. I think this video clears up the illusion and will help de-mystify rockets for the less physics minded.

Dr Andy Hill

There seems to be a glitch at about 2:50.

Robert Sanges


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