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1644 in science 
Summary
The year 1644 AD in science and technology involved some significant events.
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Mathematics edit
- The Basel problem is posed by Pietro Mengoli, and will puzzle mathematicians until solved by Leonhard Euler in 1735.[1]
Technology edit
- Jacob van Eyck collaborates with the bellfounding duo Pieter and François Hemony to create the first tuned carillon in Zutphen.[2]
Publications edit
- Jan Baptist van Helmont publishes Dageraad ofte Nieuwe Opkomst der Geneeskunst ("Daybreak, or the New Rise of Medicine").[3]
Births edit
- 25 September – Ole Rømer, Danish astronomer who makes the first quantitative measurements of the speed of light (died 1710)[4]
Deaths edit
- 2 July – William Gascoigne, English scientist (born 1610)[5]
- 30 December – Jan Baptist van Helmont, Flemish chemist (born 1580)[3]
References edit
- ^ Sandifer, C. Edward (2007). How Euler Did It. MAA. p. 205. ISBN 9780883855638.
- ^ Lehr, André (1991). The Art of the Carillon in the Low Countries. Tielt, Belgium: Lannoo. ISBN 90-209-1917-2.
- ^ a b "Jan Baptista van Helmont - Belgian scientist". Encyclopedia Britannica. Retrieved 3 April 2018.
- ^ "Ole Rømer - Danish astronomer". Encyclopedia Britannica. Retrieved 3 April 2018.
- ^ Vaquero, J. M.; Vázquez, M. (2009). The Sun Recorded Through History. Springer Science & Business Media. p. 236. ISBN 9780387927909.