Why don't perpetual motion machines ever work? - Netta Schramm
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View full lesson: http://ed.ted.com/lessons/why-don-t-perpetual-motion-machines-ever-work-netta-schramm<br />
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Perpetual motion machines — devices that can do work indefinitely without any external energy source — have captured many inventors’ imaginations because they could totally transform our relationship with energy. There’s just one problem: they don’t work. Why not? Netta Schramm describes the pitfalls of perpetual motion machines. <br />
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Lesson by Netta Schramm, animation by TED-Ed.
<br />
View full lesson: http://ed.ted.com/lessons/why-don-t-perpetual-motion-machines-ever-work-netta-schramm<br />
<br />
Perpetual motion machines — devices that can do work indefinitely without any external energy source — have captured many inventors’ imaginations because they could totally transform our relationship with energy. There’s just one problem: they don’t work. Why not? Netta Schramm describes the pitfalls of perpetual motion machines. <br />
<br />
Lesson by Netta Schramm, animation by TED-Ed.
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