Recent content by DRHopton

I've uploaded a video of the Aoelipile so that you have a better idea what I'm talking about: You mean the deceleration of the steam after it leaves the nozzle? I'm afraid that is beyond me with the equipment I have. Or do you mean the deceleration of the Aeolipile when the steam runs...

OK, so I guess my assumption is that the exhaust steam velocity >> the instantaneous linear velocity of the nozzle as it rotates. Maybe not the best assumption, but without it I'm stuck!

sophiecentaur thanks for your input. I realize that power and force are different units, but in the rocket on a spring situation the rocket is clearly doing work to maintain the situation and I wondered how this could be measured. What I overlooked is the fact that the rocket is not doing work...

Thanks for the replies. For a bit more background, I am a technician at a sixth form college in the UK (16-18 year olds). This is purely an academic exercise for use in teaching students about heat engines and the theory of working out efficiency. The conclusion of the exercise is intended...

Exhaust stream velocity is not known, or at least beyond my ability to measure accurately. For a bit more background, I want to measure the efficiency of an Aeolipile. Mine is very similar to this one, but it hangs from a bearing over a bunsen instead of being mounted on a turntable. I...

Hi, I have a question about working out the power to maintain equilibrium with a spring: I attach a rocket to a horizontal spring and fire the rocket horizontally. This is done on a track or something similar. The spring will extend until the tension in the spring equals the thrust of...