Career Path > Radiation Safety

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

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Granicha:

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

Granicha:

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

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

Marlin:

--- 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.


--- End quote ---

Phosphorus radium would not dissapate.

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