Print Page - Antique from 1910 that glows blue-- is this radium?

Title: Antique from 1910 that glows blue-- is this radium?
Post by: Granicha on Apr 01, 2022, 04:55

(https://imgur.com/GibaRD8.jpg)

Title: Re: Antique from 1910 that glows blue-- is this radium?
Post by: Marlin on Apr 01, 2022, 05:16

Is the glow constant or does it dissipate over time in the dark?

Title: Re: Antique from 1910 that glows blue-- is this radium?
Post by: Granicha on Apr 01, 2022, 05:35

Quote from: Marlin on Apr 01, 2022, 05:16
Is the glow constant or does it dissipate over time in the dark?

It dissipates over time and has to spend time in light before it can glow again.

Title: Re: Antique from 1910 that glows blue-- is this radium?
Post by: Marlin on Apr 01, 2022, 05:43

Quote from: Granicha on Apr 01, 2022, 05:35
It dissipates over time and has to spend time in light before it can glow again.

Phosphorus radium would not dissapate.

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