Coin Cell Hacks That Won the Coin Cell Challenge
It’s amazing what creative projects show up if you give one simple constraint. In this case, we asked what cool things can be done if powered by one coin cell battery and we had about one hundred answers come back. Today we’re happy to announce the winners of the Coin Cell Challenge.
Supernova Award: Coin Cell Powered Railgun
A railgun powered by an LIR2032 cell wins the Supernova Award with a cash prize of $500.
This project by [consciousflesh] dumps about 500-750 Joules of energy into a set of electromagnets to launch a graphite projectile. It makes quite a flash …read more
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