SciHi Blog

Gaspard de Prony and the Prony Brake

Gaspard de Prony and the Prony Brake

On July 22, 1755, French mathematician and hydraulic engineer Gaspard Clair François Marie Riche de Prony was born. De Prony is best known for his efforts in the mechanization of calculations as well as for his invention of the eponymous “brake” to measure the performance of machines and engines. Gaspard de Prony’s family name was Riche, the de Prony title having been bought by his parents. De Prony was educated…
Heinrich Harrer and the Eiger North Face

Heinrich Harrer and the Eiger North Face

On July 21, 1938, Austrian mountaineer, sportsman, and geographer Heinrich Harrer together with Andreas Heckmair, Ludwig Vörg, Heinrich Harrer and Fritz Kasparek started ther first successful climb of the famous Eiger north face, which is the biggest north face in the Alps. The north face is considered amongst the most challenging and dangerous ascents in the European alps. Heinrich Harrer was born in 1921 and studied geography and sports at…
Sir Edmund Hillary – Mountaineer, Explorer and Philanthropist

Sir Edmund Hillary – Mountaineer, Explorer and Philanthropist

On July 20, 1919, New Zealand mountaineer, explorer, and philanthropist Sir Edmund Percival “Ed” Hillary was born. Hillary and Nepalese Sherpa mountaineer Tenzing Norgay became the first climbers confirmed to have reached the summit of Mount Everest. As part of the Commonwealth Trans-Antarctic Expedition he reached the South Pole overland in 1958. He subsequently reached the North Pole, making him the first person to reach both poles and summit Everest.…
Mary Jobe Akeley and her Explorations in Africa

Mary Jobe Akeley and her Explorations in Africa

On July 19, 1966, American explorer and naturalist Mary Jobe Akeley passed away. Akeley was one of the earliest women explorers in Africa where she and her husband hunted and photographed animals during their natural history studies. She is the author of Carl Akeley’s Africa, published in 1929, Lions, Gorillas and Their Neighbors, published in 1932 and Congo Eden published in 1950. Mary Jobe Akeley grew up in Ohio and graduated from…
John Glenn – The First American to orbit the Earth

John Glenn – The First American to orbit the Earth

On July 18, 1921, U.S. astronaut and statesman John Herschel Glenn Jr. was born. In 1962 Glenn was the first American to orbit the Earth, circling it three times. Before joining NASA, Glenn was a distinguished fighter pilot in World War II and Korea. In 1998, still a sitting senator, Glenn was the oldest person to fly in space as a crew member of the Discovery space shuttle and the…
Sir Frederick Abel and the Smokeless Gunpowder

Sir Frederick Abel and the Smokeless Gunpowder

On July 17, 1827, English chemist Sir Frederick Abel was born. Abel was a military explosives specialist, and with the chemist Sir James Dewar, invented cordite in 1889, which is a smokeless gunpowder that was later adopted as the standard explosive of the British army, and proved vital in WWI. Frederick Abel studied chemistry at the Royal Polytechnic Institution. In 1845 he started studying at the Royal College of Chemistry…
Joseph Goldberger’s Fight against Pellagra

Joseph Goldberger’s Fight against Pellagra

On July 16, 1874, American physician and epidemiologist Joseph Goldberger was born. Goldberger was an advocate for scientific and social recognition of the links between poverty and disease. Due to his important work on the link between pellagra and poor diet, he was nominated five times for the Nobel Prize. Joseph Goldberger was born in Girált, Sáros County, Kingdom of Hungary in a Jewish family, as the youngest of six…
Mariner 4 and the First Pictures from Mars

Mariner 4 and the First Pictures from Mars

On July 15, 1965, NASA spaceprobe Mariner 4 performed the first successful flyby of the planet Mars, returning the first pictures of the Martian surface. It captured the first images of another planet ever returned from deep space; their depiction of a cratered, seemingly dead world largely changed the view of the scientific community of life on Mars. Mariner 4 was already the fourth in a series of spacecraft to explore…
Jay Wright Forrester and System Dynamics

Jay Wright Forrester and System Dynamics

On July 14, 1918, pioneering American computer engineer and systems scientist Jay Wright Forrester was born. Forrester is known as the founder of system dynamics, which deals with the simulation of interactions between objects in dynamic systems. He also he supervised the building of the Whirlwind computer at the Massachusetts Institute of Technology, for which he invented the random-access magnetic core memory, the information-storage device employed in most digital computers.…
Alfred Stieglitz and Photography as Art

Alfred Stieglitz and Photography as Art

On July 13, 1946, American photographer and modern art promoter Alfred Stieglitz passed away. Stieglitz was instrumental over his fifty-year career in making photography an accepted art form. In addition to his photography, Stieglitz was known for the New York art galleries that he ran in the early part of the 20th century, where he introduced many avant-garde European artists to the U.S. Alfred Stieglitz was educated in New York.…
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