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At our hackerspace, the washroom situation was terrible. I found out there are some fuel cells that react to hydrogen sulfide! We thought about displaying whe
by kw71 12y ago
At our hackerspace, the washroom situation was terrible. I found out there are some fuel cells that react to hydrogen sulfide! We thought about displaying whether or not it was safe to enter on an LED scrolling-message sign.
- craig 12y agolet me know if you get around to it! I'd be keen to check it out.