I suppose this could be useful in places without electricity, but other than that this is a stupid idea.
most of africa has electricity at this point so..... useless.
I mean... it's a bearing. I'll carve you a wood fidget spinner w/ a pocket knife. My favorite part of the article was "discovered". College student "discovers" shit that spins actually spins.
Yeah they didn't discover anything, they used common sense.
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