You dropped all the videos in which the boffins/buffoons were unable to ignite rocket fuel with it's own oxidizer in low pressure chambers until the rockets were turned into pressurised bombs
Actually no
The second video does show the guy trying a couple of times to get the rocket igniting in a vacuum and failing.
It was commendably honest of him to include that in the video so people could see his method.
Ignition is tricky in a vacuum as it requires oxygen and obviously there isn't any of that in a vacuum.
That's why rockets designed to work in space carry their own supply.
In the end the bloke in the second video showed how he solved the problem and the rocket demonstrably worked.
you rely on the one video in which the buffoon wont reveal his rocket design , cos it's a bomb is my guess. You display a complete lack of understanding about the laws of physics. Where is the controlled repeatable scientific experiment that proves a rocket engine will work in a vacuum ? That's all you have to show me .
I've posted two videos
I note you have posted nothing but "chatroom waffle".
I await the credible source which agrees with you that Joule's result demonstrates that rockets can't work in a vacuum.
I've shown two videos which demonstrate they can, you are the one making this link. Please provide some backup for it.