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Watch hand in a dry ice chamber [message #20446]

Wed, 01 July 2026 22:37

Gary
Messages: 2496
Registered: May 2013
Location: Seattle

Gruen Authority
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I should try this myself. Interesting effect.

https://fxtwitter.com/billcooper1959/status/2072001354181034231

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Re: Watch hand in a dry ice chamber [message #20458 is a reply to message #20446]

Sat, 04 July 2026 12:51

Jenneke
Messages: 2132
Registered: May 2013
Location: Netherlands

Gruen Authority

Thats weird. Radium is still active but didnt know it could give this effect.

You can only waste time if you forget to enjoy it - Loesje

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Re: Watch hand in a dry ice chamber [message #20472 is a reply to message #20458]

Sun, 05 July 2026 20:14

JackW
Messages: 2212
Registered: May 2013
Location: Denver

Gruen Authority
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Some of the daughter products in the decay chain from Radium can kick out high energy particles. You can get a sense of the particle type, by the trail it will leave in a cloud chamber. Especially for the high-energy cosmic rays that will zip through.

All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me

"If I have seen farther it is by standing on the shoulders of giants." - Newton

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