   Mass - > Energy, Energy -> Mass
    Everyone knows about E=mc^2, and anybody slightly educated knows that it means Energy is equal to mass times the square of the speed of light.  And the even more educated know that in a nuclear reaction, the products ALWAYS weigh less than the reactants because some of the mass is converted into energy.  What if mankind found a way to make a device that would take ANY matter, and just spit out energy?!  That would kick ass.  Energy is also easier to move than mass, so imagine creating mass from energy to create materials for some massive orbital spacecraft....your thoughts? 
  We need a Mr. Fusion like in Back to the Future where it turns garbage into power.  That would solve two problems at once. ;;  actually, this is already possible. a photon of sufficient energy is able to annihilate(sp???) matter, not in the sense of evaporating, but actual disbanding of the nucleus. i guess it isnt energy efficient enough though . it would obvisouly own for it to be efficient. free clean energy for all. ;  Antimatter engines have already been tested by NASA, as far as I know.  A bit costly, though.   "Unfortunatly, when I sent the email, instead of writing "Best Regards" I ended up writing "Best Retards." - boolean ;  Haven''t thought about it in detail but i think directly converting matter to energy is impossible, just like you can''t build a machine  that converts heat to energy. ;  heat IS energy you dumb shit ;quote:Original post by Grizwald  heat IS energy you dumb shit   Maybe he was joking.  Hopefully.   "Unfortunatly, when I sent the email, instead of writing "Best Regards" I ended up writing "Best Retards." - boolean ;  Maybe he meant a useful form of energy. You know how much energy we waste on friction?   Zorx (a Puzzle Bobble clone)Discontinuity (an animation system for POV-Ray) ;  Mass is energy too...What i meant is that you can''t build a fridge that produces energy by cooling it''s interior. 