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Thursday, April 10, 2025
Open today 4 PM - 11 PM
Detail showing a geranium petal, hand-colored lithograph, Sketches with the Microscope: In a Letter to a Friend, by Mary Ward, plate 13, p. 44, 1857 (Linda Hall Library)
Mary Ward, an Irish microscopist, popular science writer, and illustrator, was born Apr. 27, 1827, at the family estate, Castle Ward, County Down.
Guglielmo Marconi, an Italian electrical engineer and inventor, was born Apr. 25, 1874, into a wealthy family in Bologna.
Poul La Cour, a Danish scientist, teacher, and inventor, died on Apr. 24, 1908, at the age of 62. He was born on Apr. 13, 1846, in east Jutland...
Louis Bourguet, a French/Swiss naturalist, philosopher, and historian, was born Apr. 23, 1678, in Nîmes. His parents were Huguenots, and when...
J. Robert Oppenheimer, an American theoretical physicist, was born Apr. 22, 1904. Oppenheimer was a gifted mathematician who came of age during the...
Hero of Alexandria, an ancient Greek engineer, lived in Alexandria in Roman Egypt, perhaps in the first century BCE...
Albert Einstein, a German/American physicist, died in Princeton, New Jersey, on Apr. 18, 1955, age 76.
Charles Blagden, an English physician, chemist, and scientific diplomat, was born Apr. 17, 1748.
Jacques Cassini, a French astronomer, died Apr. 16, 1756, at the age of 79
Benjamin Jowett, an English classical scholar and Anglican priest, was born Apr. 15, 1817.
Louis Sullivan, American architect, died on Apr. 14, 1924, in Chicago, at the age of 67.
April 11 is National Submarine Day.
Louis Vicat, a French engineer and bridge builder, died Apr. 10, 1861, at the age of 75.
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