Mathematicians Of The Day

20th May

On this day in 1608, the Dalmatian mathematician Marino Ghetaldi wrote to Christopher Clavius saying that with his latest parabolic mirror:-
... the sun melts not only lead, but silver.

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Quotation of the day

From William Emerson
Beware of the man who will not engage in idle conversation; he is planning to steal your walking stick or water your stock.