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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 14/12/2024

Happy #QuantumDay to all who celebrate! Max Planck submitted work on blackbody radiation to the German Physical Society #OTD in 1900. His novel “quantum hypothesis” suggested that matter emits and absorbs light with frequency f only in discrete chunks of energy E=hf. 🧪 ⚛️ (1/n) Image: AIP

A black and white photo of Max Planck. His arms are crossed and he is looking at the camera. Planck has a substantial mustache and his hair is receding. He is wearing a heavy, dark suit with a high-collared white shirt and a small black bowtie.

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 14/12/2024

Planck’s quantum hypothesis would revolutionize physics, but he initially thought it wasn’t real. He suspected that the interaction of matter and radiation was tremendously complicated but still governed by the physics known at the time — what we now refer to as “classical physics.” (2/n)

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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 14/12/2024

Invoking quanta of radiation to derive the blackbody emission spectrum was, it seemed to Planck, just a mathematical trick that somehow encapsulated all that complication. But if so, it was a trick that *worked*. (3/n)

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