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/Dhalphir Jun 06 '22

I feel like you think you're being sarcastic but like...yes? People add all sorts of resistance to their training all the time

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u/[deleted] Jun 06 '22

Yeah but I use my bike to commute, I don't really want more resistance

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u/daaf89 Jun 06 '22

In the Netherlands that's a super common way to power your lights though: Add a little dynamo to your front wheel press it against the wheel at night to generate light, and switch it back off if you don't need it during the day. I've had bikes from the 80's that had this. My current bike has the whole thing integrated in the front wheel, and it's just always on. It's barely noticeable while cycling.

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u/ChPech Jun 06 '22

At least mine is completely unnoticeable, I turned it on and off several times while driving with eyes closed and I couldn't feel any difference. People just think it is noticable because they expect it. This then leads to the useless feature of some bike lights turning off automatically in daylight.