arknd Posted November 8, 2013 Share Posted November 8, 2013 In my high school physics class last year, I was dissapointed to hear that machines can never be 100% efficient. They will always lose energy through heat or some other medium because, to me, "that is just how it works." Is there any debate open to there being a 100% efficient machine, or is it literally impossible? I have had dreams of a magnetically powered self-sustaining engine, but it can't happen. Link to comment Share on other sites More sharing options...
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