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Scientists have built a school of robotic fish powered by human heart cells

2 points| derefnull | 4 years ago |npr.org

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jcun4128|4 years ago

> Once you're born, about two days after you leave the womb, the number of cardiac muscle cells you have then is all you're going to have for the rest of your life," Parker says

Interesting. Not sure why it has to be a fish. Can't it just be suspended between two pins/flex back and forth like a beam.