On this day in 1749, Voltaire wrote to one of Émilie du Châtelet's friends:
Mme du Châtelet informs you that this night, being at her desk working on Newton, she felt a little call. The little call was a daughter, who appeared in an instant. She was laid on a quarto book of geometry. The mother has gone to lie down and, if she were not asleep, she would be writing to you.
Sadly, du Châtelet died 6 days later.
On this day in 2012 Google released an Al-Biruni doodle
Click on Ⓟ for a poster.
Born:
1809: Luigi Menabrea Ⓟ
1848: Heinrich Bruns Ⓟ
1890: Johannes van der Corput Ⓟ
1899: Hildegard Ille Ⓟ
Died:
1969: Marcel Riesz Ⓟ
1978: Herbert Dingle Ⓟ
1984: Ernst Stueckelberg Ⓟ
1996: Joan Clarke Ⓟ
2011: Hans Grauert Ⓟ
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