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Making Science with Tom Whipple · Jul 14, 2025 · 8 min

How do you hide a lump of gold in plain sight?

It's April in 1940. The Nazis are occupying Copenhagen. As they march through the streets, a stark realisation hits the physicist Niels Bohr. He has hours - maybe less - to make two Nobel Prize medals disappear completely. What might a substance named Aqua Regia and a humble beaker do conceal two huge lumps of gold? And bring it back again...a decade later. Hosted on Acast. See acast.com/privacy for more information.

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It's April in 1940. The Nazis are occupying Copenhagen. As they march through the streets, a stark realisation hits the physicist Niels Bohr. He has hours - maybe less - to make two Nobel Prize medals disappear completely. What might a substance named Aqua Regia and a humble beaker do conceal two huge lumps of gold? And bring it back again...a decade later.

Hosted on Acast. See acast.com/privacy for more information.

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