amplidyne

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The tomb of Saint Nicholas in the crypt of the Basilica di San Nicola, Bari, Apulia, Italy

Do the Relics of Saint Nicholas Really Emit a Holy Substance?

Chinese dragon sculpture or statue.

10 Legendary Creatures from Around the World

Dr. Martin Luther King Jr. addresses marchers during his "I Have a Dream" speech at the Lincoln Memorial in Washington. August 28th 1963

Was Martin Luther King, Jr., a Republican or a Democrat?

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya

The Fastest Animals on Earth

Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.

9 of the World’s Deadliest Mammals

Image of Antenna galaxy

The Fermi Paradox: Where Are All the Aliens?

amplidyne

mechanics

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work of Alexanderson

In Ernst F.W. Alexanderson
He also developed the amplidyne, an extremely sophisticated automatic control system first used in factories to automate intricate manufacturing processes and used during World War II in conjunction with antiaircraft guns.
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