That’s stupid as fuck as they still use mercury wetted relays to this day in som... | Hacker News

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		ohgr 9 months ago \| parent \| context \| favorite \| on: Australian who ordered radioactive materials walks... That’s stupid as fuck as they still use mercury wetted relays to this day in some places.

potato3732842 9 months ago [–]

I get the whole screeching about hazmat aspect to it but a mercury bulb with embedded copper contacts will cycle reliably basically forever at earthly temperatures. They are very good at what they are.

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