On Thu, Feb 11, 2016 at 3:38 PM, <[email protected]> wrote: >It's what is needed to do negative work. > > Is that work, that once having been done, requires even more work to fix > up the > result? :) >
I was wondering what it was myself. :) It was fun to think about. Now I see why the physicists wanted to say that negative energy is unphysical. Eric
