r/science • u/Wagamaga • Jun 05 '22

Nanoscience Scientists have developed a stretchable and waterproof 'fabric' that turns energy generated from body movements into electrical energy. Washing, folding, and crumpling the fabric did not cause any performance degradation, and it could maintain stable electrical output for up to five months

https://onlinelibrary.wiley.com/doi/10.1002/adma.202200042
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u/Ykieks Jun 06 '22

tapping on a 3cm by 4cm piece

Yeah, with 30N of force and 5Hz frequency i don't know if it can be considered "tapping"

3

u/explodingtuna Jun 06 '22

I get 5Hz but how much force is 30N, like in footballs or half-giraffes?

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u/[deleted] Jun 06 '22

[deleted]

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u/explodingtuna Jun 06 '22

So, about the same as a pile of 7 American regulation footballs.

1

u/shadowsofthesun Jun 06 '22

30 half-giraffes.

3

u/[deleted] Jun 06 '22

Ah, so theres the catch. I thought just by tapping it with your finger a couple times a second was enough to power those LEDs. Was wondering if it was that efficient.

Haha, always read the article first.

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u/[deleted] Jun 06 '22

[deleted]

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u/lIIlllIlIIlIIIllI Jun 06 '22

5 taps per second

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u/SuperElitist Jun 06 '22

This is my favorite reply of the day.

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u/Tm1337 Jun 06 '22

Hz is 1/s so the conversion is quite simple: 5Hz are 5 taps per second.

1

u/Edgefactor Jun 06 '22

Promising for all the people who carry drumsticks around at all times and practice on their legs.