1650 in science

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The year 1650 in science and technology involved some significant events.

Astronomy

• In Ursa Major, the handle's middle star, Mizar, is noted to be a binary star by Giambattista Riccioli.

Botany

• Begonias are first discovered by Francisco Hernández.^{[citation needed]}
• William How publishes his flora Phytologia Britannica.
• Posthumous publication begins of Johann Bauhin's Historia plantarum universalis at Yverdon.

Geology

• The Kolumbo underwater volcano in the Aegean Sea is discovered when it bursts from the sea and erupts, killing 70 people on a nearby island.

Medicine

• English physician Francis Glisson publishes the first comprehensive pediatric text on rickets, De rachitide sive morbo puerili.

Births

• approx. date - Thomas Savery, English engineer, inventor of a steam pump (d. 1715)

Deaths

• February 11 - René Descartes, French mathematician (b. 1596)
• June 30 - Niccolò Cabeo, Italian polymath (b. 1586)
• July 18 - Christoph Scheiner, German astronomer (b. 1573)
• August - John Parkinson, English herbalist and botanist (b. 1567)
• Giovanni Battista Zupi, Italian astronomer (b. c.1590)