What is energy? Can you define it? Also, how do magnets work? One more: is time travel ever possible and why?
What is energy? Can you define it? Also, how do magnets work? One more: is time travel ever possible and why?
Posted on June 17, 2013 by in Question. Comments Off on What is energy? Can you define it? Also, how do magnets work? One more: is time travel ever possible and why?
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