Science Birthdays, February 24

Today is the birthday of Pyotr Nikolaevich Lebedev, born in 1866, he was the first to measure the pressure of light on a solid body in his experimental studies of electromagnetic waves, this discovery, announced at the World Physics Congress in 1900 became the first quantitative confirmation of Maxwell’s theory of electromagnetism.

Karl Graebe, born in 1841introduced the terms ortho, meta and para to organic chemistry. He died in 1927 at the age of 86.

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