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A comment on Ask HN: What under-the-radar technology are you excited about?.

Re:Ask HN: What under-the-radar technology are you excited a... by 23d on Monday April 12, 2021 @05:39PM (#26785538)
Diamond Batteries! https://ndb.technology/ https://www.youtube.com/watch?v=b6ME88nMnYE
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Re:Ask HN: What under-the-radar technology are you excited a... by mikewarot on Tuesday April 13, 2021 @10:43AM (#26792834)
Why are you interested in this?

If it is for anything other than very LOW power (microwatts), you're going to be disappointed.

It is essentially a beta emitter hooked to a capacitor via some electronics to handle voltage conversion. The thing is the beta source is use it or lose it, and very low power. If you scaled this up to power a Tesla, it would be a nightmare, as it would need to dissipate the full power the car requires, all the time, or it would melt down (aka Fukashima)

For a longer debunk - https://www.youtube.com/watch?v=uzV_uzSTCTM

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