American chemist, inventor, and philanthropist (died 2004)

Arnold Orville Beckman

Arnold Orville Beckman was an American chemist, inventor, investor, and philanthropist. While a professor at California Institute of Technology, he founded Beckman Instruments based on his 1934 invention of the pH meter, a device for measuring acidity, later considered to have "revolutionized the study of chemistry and biology". He also developed the DU spectrophotometer, "probably the most important instrument ever developed towards the advancement of bioscience". Beckman funded the Shockley Semiconductor Laboratory, the first silicon transistor company in California, thus giving rise to Silicon Valley.

Born

1900

April 10

Died

Living

Era

1900s

Country

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About

Arnold, in brief

Source: Wikipedia · CC BY-SA 4.0

Life timeline

Key dates

1900 Born

Also on April 10

What else happened on this day, through history

238 During the year of Six Emperors, forces of Gordian I and Gordian II are defeated by those of Maximinus Thrax in the battle of Carthage.
428 Nestorius becomes the Patriarch of Constantinople.
837 Halley's Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles).
847 Election of Pope Leo IV following the death of Pope Sergius II.

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The world in 1900

When Arnold arrived

april 1 Prince George becomes absolute monarch of the Cretan State.
april 10 British suffer a sharp defeat by the Boers south of Brandfort. Six hundred British troops are killed and wounded and 800 taken prisoner.
april 12 One day after its enactment by the Congress, President William McKinley signs the Foraker Act into law, giving Puerto Rico limited self-rule.
april 14 The world's fair Exposition Universelle opens in Paris.

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Same-day contemporaries

Also born on April 10

Dolores Huerta 1930– American activist, co-founded the United Farm Workers George Arliss 1868–1946 English actor and playwright (died 1946) Hugo Grotius 1583–1645 Dutch philosopher and jurist (died 1645) John Madden 1936–2021 American football player, coach, and sportscaster (died 2021) Marit Breivik 1955– Norwegian handball player and coach Max von Sydow 1929–2020 Swedish-French actor (died 2020) Nizam al-Mulk 1018–1092 Persian scholar and vizier (died 1092) Q-Tip 1970– American rapper, producer, and actor Rachel Corrie 1979–2003 American activist (died 2003)

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Same-year contemporaries

Also born in 1900

Aaron Copland 1900–1990 American composer and conductor (born 1900) Alastair Sim 1900–1976 Scottish-English actor (born 1900) Bill Ponsford 1900– Australian cricketer and baseball player (died 1991) Bunny Ahearne 1900–1985 Irish-born English businessman (born 1900) Douglas Jardine 1900– Indian-English cricketer and lawyer (died 1958) Eduardo De Filippo 1900–1984 Italian actor and screenwriter (died 1984) Edward Ardizzone 1900– Vietnamese-English author and illustrator (died 1979) Ellen Broe 1900– Danish nurse, pioneer in nursing education (died 1994) Ernie Pyle 1900–1945 American journalist and soldier (born 1900)

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Arnold's birthday April 10 Arnold's zodiac Aries When Arnold arrived 1900