Recent content by blahsd

I'm almost sure you can keep a piece of metal suspended for a short while if its spinning... There was some kind of toy doing it.

Drakkith: thanks then. Greg23: I'm not trying to get work out of it. Sorry if my wording was wrong. Lsos: except I can't use a spacecraft as a ornament for my desk (the intended use for my apparatus) russ_watters: if I could put it on my desk and die of old age before it stops...

Sorry! Bad terminology usage. I didn't mean any offense to the law of conservation of energy. Could you call that a perpetual motion apparatus? Is that possible to realize?

Would a piece of metal suspended between two magnets in a vacuum-sealed jar be in a situation of frictionless vacuum? If yes, could such a situation be exploited to build a perpetual motion machine? If no, would the friction be enough to result in an appreciable loss of energy if the piece of...

I think I get it. But then, is light a wave or a particle, or both?

hi, it's my first post in this forum so I hope I'm in the right section. I've asked three different physics teachers in my high school an explanation for this to no avail. if acceleration is inversely proportional to mass, and photons have no mass, why don't they have infinite acceleration? in...