Time to get out the Geiger Counter and explore some glowy things I found in storage!
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Radium Dial clock radio in Viewer Mail 10 - https://www.youtube.com/watch?v=0J3cu67SBZY
An interesting article on the hazards of those early labs - https://www.nytimes.com/2014/12/07/magazine/my-great-great-aunt-discovered-francium-and-it-killed-her.html
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Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
Radium Dial clock radio in Viewer Mail 10 - https://www.youtube.com/watch?v=0J3cu67SBZY
An interesting article on the hazards of those early labs - https://www.nytimes.com/2014/12/07/magazine/my-great-great-aunt-discovered-francium-and-it-killed-her.html
- Music by Fran Blanche -
Frantone on Facebook - https://www.facebook.com/frantone/
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
I love these films where you fix things up..
But is it really Ra-226? There is little information about that, but Ra-228, Th-228 and Sr-90 were being used, too.
What did they measure?
How many people have died from cancers due to wearing wrist watches with radium in the dials? Nobody knows, but it's probably a high number.
are old darkroom timers hot too?
Awesome sauce😆
A man would've opened one and took a geiger reading 🧐
I worked for a company that had a bunch of this. Some people died of cancer
There is one thing you didn't mention. What were these gauges used for? There is no indication of measurement on them. Just a graduate from 0 to 100. Amps? Watts? Voltage? Temperature? The angle of the dangle? What?
I had a physics professor bring over a fancy geiger-counter to check over my Collins R-392 military radio. It had a small barely glowing tuning meter. The counter showed 13 millirems/hr at 4 inches away. Pretty high, even it was probably about 8 half-lifes run down.
A lot of meters are painted with things other than Radium, like mesothorium, which is insanely radioactive, with a half-life of about 6 years. So it's likely those dials, if they are 60 years old, will be down to about 2^-10 of their initial radioactivity, or just one part per thousand of the original activity!
Didn't the young women who worked in the watch face factories with this paint have a name for their collective? "The ****** Girls" ….. their story was among the first I ever heard as a young lad about a corporation attempting to evade accountability for damages to other human beings… and getting away with it scott free. I knew then, the world in charge was deceptive and evil.
So Fran, at 1 foot what is the hazard? Is it dangerous at one foot?