Recent content by phans

It seems that a solution to all the long recharge times that batteries have, at least for automotive applications, is to standardize on two or three battery sizes/capacities with standardized connections (physical & electrical), and then build cars that can use them. If this is done smartly, it...

"Is this such a big subject to discus for 41 posts (including mine :) )" That's precisely the point I was trying to make in post #36 when I said how silly it was to have so many posts going on and on about details that had nothing to do with the original post that used a simple constant g model.

My comment was based on the original premise (post #1) that the acceleration is constant, in which case, quoting from post #7: "The V2/Vesc values I calculated for the Sun, Earth, Moon and Mars are in 99.9% agreement. I'm not a rocket scientist, but I think this is more that just luck (?)"...

Isn't this whole discussion just a little silly? All it amounts to is that if object B (e.g., a rocket) leaves object A (e.g., earth) with enough velocity to reach a height equal to the radius of the object A, it has almost escaped. In fact, if it's initial velocity had been just a bit higher...

Hello all, I'm a retired electrical engineer/computer programmer who's always been interested in both the very large (cosmology) and the very small (quantum theory). I look forward to many hours of interesting reading and some conversation. Regards, Paul