Science Birthdays, April 24

Jean Charles Galinard de Marignac, born on this day in 1817,  chemist, discovered yitterbium. He died in 1894 at the age of 77.

Gideon Sundback, born in 1880 was a Swedish-American engineer and businessman who developed the zipper. He dies in 1954 at the age of 74.

 

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