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2024-08-08 11:00:00

Hackaday (RSS Feed) on Nostr: Magnesium and Copper Makes an Emergency Flashlight <img width="800" height="449" ...

Magnesium and Copper Makes an Emergency Flashlight

<img width="800" height="449" src=" ; alt=""/>Many of us store a flashlight around the house for use in emergency situations. Usually, regular alkaline batteries are fine for this task, as they’ll last a good few years, https://hackaday.com/2024/08/08/magnesium-and-copper-makes-an-emergency-flashlight/


https://hackaday.com/2024/08/08/magnesium-and-copper-makes-an-emergency-flashlight/
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