#WhatIsMyCenter我的本質是什麼
#動力就像空氣_不能沒有_擁有時又忽略它的存在
"捍衛聯盟 Rise of the Guardians

學習

文化生活

健康與情感

總是沒勁或續航不足，如何創造自己的永動機及無窮能源！

職場產業

　　有沒有一種機械，能永遠運作，而不需耗損能量？
「永動機」作為漫漫歷史長河中，如同基督教裡聖杯一樣的存在，讓無數科學人尋尋覓覓。若能參破謎團，是否就能避免能源爭奪之戰？
　　

　　

觀點

永恆的科學聖杯──淺談永動機

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View full lesson: http://ed.ted.com/lessons/why-don-t-perpetual-motion-machines-ever-work-netta-schramm

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. 

Lesson by Netta Schramm, animation by TED-Ed.