Science Birthdays, June 19

6/19/1623        Blaise Pascal,               physicist, child prodigy, built a mechanical calculator when he was a teenager, mathematician of the highest order, also famous for Pascal’s Law – Pressure exerted anywhere in a confined, non-compressible fluid is transmitted equally in all directions throughout the fluid. He was in poor health after his 18th birthday and died in 1662 at age 39.

6/19/1897        Sir Cyril Hinshelwood, chemist, studied the explosive reaction of hydrogen and oxygen, described chain reactions, never married, he was fluent in seven languages. He died in 1967 at age 70.

6/19/1906        Ernst Chain                  chemist, described the therapeutic action and composition of penicillin identified by Fleming 9 years earlier. He died in 1979 at age 73.

6/19/1906        Lyman Craig                chemist, he invented the rotary evaporator, also the counter current distribution method. he died in 1974 at age 68.

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