- 1640 in science
The year 1640 in
science andtechnology involved some significant events.Technology
* The
micrometer is developed.
* A form ofbayonet is invented, and in later years, it will gradually replace the pike.
* Thereticle telescope is developed and initiates the birth ofsharpshooting .Mathematics
*
Blaise Pascal discovers, at the age of 16, the properties of thehexagrammum mysticum .
*Fermat discovers that an odd prime p can be written as the sum of two squares.Computer science
*
Blaise Pascal ’s machine is developed: it will often be cited as the firstcalculator .Exploration
* The Cape Verde Island of Sal is discovered, originally named "Llana" (meaning "flat").
Births
*
April 1 -Georg Mohr , Danish mathematician (died 1697)Deaths
*
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