1642 in science
Appearance
	
	
| List of years in science | 
|---|
| (table) | 
| 1642 in science | 
|---|
| Fields | 
| Technology | 
| Social sciences | 
| Paleontology | 
| Extraterrestrial environment | 
| Terrestrial environment | 
| Other/related | 
The year 1642 in science and technology involved some significant events.
Astronomy
[edit]- Rundetårn astronomical observatory for the University of Copenhagen is completed, as is also the Panzano Observatory.
 
Computing
[edit]- 19-year-old Blaise Pascal begins to develop the Pascaline, the first practical mechanical calculator, initially to help with the recording of taxes.[1]
 
Exploration
[edit]- November 24 – Abel Tasman, Dutch explorer, is the first European known to sight Tasmania, which he names Anthoonij van Diemenslandt.[2]
 - December 13 – Tasman is the first European known to sight New Zealand.
 
Technology
[edit]- Opening throughout of the Briare Canal in France, the first summit level canal in Europe built using pound locks.
 - The printmaking process of mezzotint is developed by Ludwig von Siegen.
 
Births
[edit]- March (possible date) – Seki Takakazu, Japanese mathematician (died 1708)
 - December 25 (OS) – Isaac Newton, English polymath (died 1727)
 
Deaths
[edit]- January 8 – Galileo Galilei, Italian astronomer (born 1564)
 
References
[edit]- ^ Marguin, Jean (1994). Histoire des instruments et machines à calculer: trois siècles de mécanique pensante 1642-1942. Paris: Hermann. p. 48. ISBN 978-2-7056-6166-3.
 - ^ "Isaac Gilsemans Original Chart of the Discovery of Tasmania, 24 Nov. to 5 Dec. 1642". National Library of Australia. Archived from the original on 29 June 2011. Retrieved 2011-05-19.