frantone
patreon
The Illusion Of Rocket Thrust
🕑 Added 2021-07-27 21:35:22 +0000 UTCA quick 10 minutes to explain what's really going on with rockets. Enjoy!
Comments
Fran Blanche
Only the best rendering software for FranLab.
Fran Blanche
A lot - the sting is definitely gone. Thanks!
Sadiq Mohamed
An excellent explanation and great graphics!
Daniel Bingamon
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.
Maarten Daalder
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.
BobC
This. Also explains nozzle shape for atmospheric vs. vacuum.
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'. 👍👍👍
David Peaker
That's a very good explanation, similar to but better than the one in my Daily Mirror Book of Space from 1970.
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.
Geoffrey Waldo
Lovely video Fran!!
All good now Fran! Thanks
David Peaker
It's still broken for me Update- it's working now!
Nope, I'm getting the "Video is Private" message too.
John N Nelson
The Illusion of Patreon Videos... (jk)
Fran Blanche
YouTube corrupted the first upload, so I had to reupload it with a NEW LINK. Seems fixed now!
Geoffrey Waldo
All good. I can now watch!
Michael F Barushok
I also get only "This video is private".
Geoffrey Waldo
Ditto on the private issue as patron. Might be a Patreon issue…
Same here.......
Got message vid is pvt. I am patron member, what up Fran?
Nicholas Wilson
I just get a message saying this video is private. :/
Dr Andy Hill
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.
Robert Sanges
There seems to be a glitch at about 2:50.
