this post was submitted on 22 Jan 2025
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Showerthoughts
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A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The most popular seem to be lighthearted, clever little truths, hidden in daily life.
Here are some examples to inspire your own showerthoughts: 1
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Most stationary bikes have a flywheel. You could 3D print a gearing set to run a small generator (like this one or DC) off if it. There are tutorials out there about how to set up it up.
I actually did that with an actual bicycle and one of those "make any old bike a stationary bike" stand things. Harvested an old motor out of...what was it, a printer or something? Photocopier? It was the upper-left third of something that used to be office equipment, and built the circuit out of a 7805's datasheet with an extra big capacitor on the generator side. It charged phones. It was jank AF though. All it did was offer 5V at I have no idea how much current on the power pins of a USB Micro-B cable.