Mathematicians Of The Day

4th December

On this day in 1930, Wolfgang Pauli first mentioned in a letter his theoretical evidence that conservation laws required the existence of a new particle which he proposed to call the "neutron". Pauli's particle was named the "neutrino" by Fermi in 1934 and it was later found experimentally.

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Quotation of the day

From Thomas Carlyle
When the oak is felled the whole forest echoes with its fall, but a hundred acorns are downed in silence by an unnoticed breeze.
Quoted in Des MacHale, Wisdom (London, 2002).