Radio-lead stew anyone?

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Richard Hull
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Radio-lead stew anyone?

Post by Richard Hull »

An interesting and humorous little item with references. In PDF format.

Richard Hull
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Hevesy Stew final.pdf
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Rich Feldman
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Re: Radio-lead stew anyone?

Post by Rich Feldman »

Thanks, Richard. Good analysis of exactly which kind of radio-lead goes with the stew anecdote.

I hadn't previously heard of Hevesy, a great enough radiochemist to have been honored with a Nobel prize. The man with longest forehead in this picture.
hevesy.jpg
hevesy.jpg (20.68 KiB) Viewed 1929 times
.
He was working at Niels Bohr's institute in Copenhagen in 1940, when Denmark was occupied by Nazi German forces.
Max von Laue and James Franck had left their own gold Nobel medals with Bohr rather than risk smuggling them out.
Anticipating that the institute would be searched for valuables, Hevesy dissolved the medals in aqua regia. The resulting liquid sat out the war safely on a high shelf in the lab; later Hevesy recovered the metal and the Nobel Institute re-cast it into medal form.

Hevesy was also co-discoverer of hafnium (named for Hafnia, Latin name for Copenhagen). The last of a few stable elements missing when atomic number theory was figured out, Hf makes up about 10% of my wedding ring.
All models are wrong; some models are useful. -- George Box
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