On Thu, Jan 27, 2011 at 12:38 PM, Perry Sandeen <[email protected]> wrote: > List, > > Please help me with this physics question. > > If one has a given cube, say 2 x 2 x 2 inches. And one has the choice of > aluminum, copper, or lead (just for an example). Will each store or hold the > same amount of BTUs or does the density make a difference?
I think it's specif heat * mass. So it you are limited by the size of a 2" cube then even if one material has worse specific, if it had more density then more mass would fit in the same 2" cube. If you were weight limited then only specific heat matters. But in your case I think, from memory silver is good then copper I think you get different answers if the project is volume limited then if it is weight limited or cost limited. Certainly cost would have you with copper over silver If you just ask "what's best?" with no limits on volume, weight or cost I bet you end up using an exotic liquid. I worked on a project once where we just used a water tank. -- ===== Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
