# 1659 in science

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The year **1659 in science** and technology involved some significant events.

## Astronomy[edit]

- Christiaan Huygens publishes
*Systema Saturnium*, including the first illustration of the Orion Nebula.

## Mathematics[edit]

- First known use of the term
*Abscissa*, by Stefano degli Angeli.^{[1]} - Swiss mathematician Johann Rahn publishes
*Teutsche Algebra*containing the first printed use of the mathematical symbols for division (the obelus, ÷) and "therefore" (∴).

## Medicine[edit]

- Thomas Willis publishes
*De Febribus*.

## Physics[edit]

- Christiaan Huygens derives the formula for centripedal force.

## Births[edit]

- February 27 – William Sherard, English botanist (died 1728)
- June 3 – David Gregory, Scottish astronomer (died 1708)

## Deaths[edit]

- October 10 – Abel Tasman, Dutch explorer (born 1603)

## References[edit]

**^**According to Moritz Cantor. "Earliest Known Uses of Some of the Words of Mathematics (A)".*Jeff Miller Web Pages*. 2010-11-14. Retrieved 2011-04-24.