1932
A year when physicists kept pulling new things out of the atom — first the neutron, then the positron, then a controlled nuclear split — and the universe turned out to have considerably more furniture than anyone had catalogued.
Nobel Prizes
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Nobel Prize in Physics
Werner Heisenberg
Heisenberg had dismantled the comfortable clockwork atom and replaced it with something far stranger: a framework in which particles did not have definite positions or momenta until you looked, and looking changed what you found. Quantum mechanics was the result, which is arguably the most successful theory in the history of science and also the one that physicists most wish they could explain at dinner parties.
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Nobel Prize in Chemistry
Irving Langmuir
Langmuir's subject was surfaces — the thin, restless boundary where one material meets another — and he found, in that narrow territory, behaviour complex enough to occupy a career. His work on how molecules arrange themselves at interfaces laid the basis for understanding everything from catalysis to cell membranes.
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Nobel Prize in Physiology or Medicine
Sir Charles Sherrington · Edgar Adrian
Sherrington had spent decades working out how the nervous system coordinates the body — how reflexes are integrated, how opposing muscles are balanced. Adrian recorded the electrical signals in individual nerve fibres. Between them they established that the neuron is not a passive wire but an active, decision-making unit.
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Nobel Prize in Literature
John Galsworthy
Galsworthy had spent three decades chronicling the Forsyte family and, through them, the slow erosion of a certain kind of English propriety — comfortable, property-minded, uneasy with emotion. The committee praised the art of narration; the Forsytes, for their part, would have considered the whole affair rather conspicuous.
Discoveries
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Discovery of the neutron
James Chadwick
The atomic nucleus had seemed stubbornly resistant to explanation: it weighed roughly twice what its protons could account for, and nobody could say why. Chadwick's bombardment experiments revealed the answer — an electrically neutral particle, the neutron, lurking inside and quietly explaining not just the mass discrepancy but the entire fact of isotopes. He collected the 1935 Nobel Prize for it.
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Discovery of the positron
Carl David Anderson
Dirac's equations had predicted it a year earlier: a particle identical to the electron but carrying the opposite charge. Anderson found it in cosmic rays, leaving a track in his cloud chamber that curved the wrong way in a magnetic field. Antimatter had been theoretical; now it had a photograph.
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First artificial nuclear transmutation
John Douglas Cockcroft · Ernest Walton
Cockcroft and Walton accelerated protons in a machine of their own construction, aimed them at lithium, and produced helium nuclei — the first time a nuclear reaction had been induced using artificially accelerated particles. It confirmed Einstein's mass-energy equivalence with satisfying directness, measuring the energy released and finding it matched the missing mass almost exactly.
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Karl Jansky observes cosmic radio noise
Karl Guthe Jansky
Jansky was trying to find the source of radio interference bothering transatlantic telephone calls when he noticed a hiss that rotated with the stars rather than the sun. It was coming from the direction of the galactic centre — the Milky Way, broadcasting. He had accidentally founded radio astronomy without quite intending to.
No entries match that category.