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YouTubeCode.org
How Computers Work: What Makes a Computer, a Computer?
Computers are all around us, but what really makes a computer, a computer? Explore the history of computers and the features they all share. Start learning at http://code.org/ Stay in touch with us! • on Twitter https://twitter.com/codeorg • on Facebook https://www.facebook.com/Code.org • on Instagram https://instagram.com/codeorg • on ...
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0:55
A man has built a rechargeable battery pack big enough to power his whole home - using the batteries from discarded vapes. Electronics engineer Chris Doel, 26, stripped the lithium batteries from 500 binned vapes to create a single one large enough to run his entire house electrics for eight hours. He wired the 2.5 kWh battery in to his home with an inverter and ran all electrical components entirely off-grid for eight hours, including the microwave, kettle, and all lighting. Chris, who works fo
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𝐘𝐎𝐔𝐍𝐆𝐗𝐘𝐘 on Instagram: "Follow for more....日本利用压电瓷砖将人们的脚步转化为电能。这些瓷砖能够捕捉你脚步产生的动能。当你行走时,你的体重和动作会对瓷砖产生压力。瓷砖会轻微弯曲,产生机械应力。瓷砖内部的压电材料会将这种应力转化为电能。每一步都会产生少量电荷,数百万步加在一起,就能产生足够的电力来驱动LED灯、数字显示屏和传感器。在像涩谷车站这样人流密集的地方,每天大约240万步都在为这个系统做贡献。这些电力可以储存起来或立即使用,从而减少对传统能源的依赖,并支持可持续的城市基础设施。这种方法把日常的动作转化为实用的可再生能源。 #日本#知识#事实#你知道吗 #推荐 科技 创新 历史 技术 实验"
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