Bhangmeters are one kind of specialised photo detector used to detect nuclear ex... | Hacker News

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arethuza on July 19, 2012 | parent | context | favorite | on: Five Men Agree To Stand Directly Under An Explodin...

Bhangmeters are one kind of specialised photo detector used to detect nuclear explosions:

http://en.wikipedia.org/wiki/Bhangmeter

I'm pretty sure these were used in bunkers (at least in the UK) as well as satellites.

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