List of years in science (Table)
… 1635 • 1636 • 1637 • 1638 • 1639 • 1640 • 1641 •    1642 • 1643 • 1644 – 1645 – 1646 • 1647 • 1648 •    1649 • 1650 • 1651 • 1652 • 1653 • 1654 • 1655 …
Related time period or subjects
… 1642 • 1643 • 1644 – 1645 – 1646 • 1647 • 1648 … … 1610s • 1620s • 1630s – 1640s – 1650s • 1660s • 1670s … … 16th century – 17th century – 18th century …
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The year 1645 in science and technology involved some significant events.

Technology

• The magic lantern is invented by Althanasius Kircher; somewhat like a slide projector, the magic lantern could project enlarged drawings on a wall.

Births

• November 17 - Nicolas Lemery, French chemist (died 1715)

Deaths