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  Freeman Dyson, scientist, writer (1923-2020)

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Author Topic:   Freeman Dyson, scientist, writer (1923-2020)
Robert Pearlman
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posted 02-29-2020 09:11 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Freeman Dyson, theoretical physicist and writer, who envisioned the future of space exploration, died on Feb. 28, 2020 in Princeton, New Jersey at the age of 96.

From The New York Times:

As a young graduate student at Cornell University in 1949, Dr. Dyson wrote a landmark paper — worthy, some colleagues thought, of a Nobel Prize — that deepened the understanding of how light interacts with matter to produce the palpable world. The theory the paper advanced, called quantum electrodynamics, or QED, ranks among the great achievements of modern science.

But it was as a writer and technological visionary that he gained public renown. He imagined exploring the solar system with spaceships propelled by nuclear explosions and establishing distant colonies nourished by genetically engineered plants.

... Any advanced civilization, he observed in a paper published in 1960, would ultimately expand to the point where it needed all the energy its solar system could provide. The ultimate solution would be to build a shell around the sun — a Dyson sphere — to capture its output. Earthlings, he speculated in a thought experiment, might conceivably do this by dismantling Jupiter and reassembling the pieces.

From the Institute for Advanced Study (IAS) in Princeton, his academic home for more than 60 years:
In 1958, he took a leave of absence from the Institute and moved to La Jolla, California to join General Atomic's "Project Orion," working with forty scientists to design an atomic spaceship capable of riding a wave of controlled nuclear pulses into deep space. Dyson recalled the fifteen months spent on the short-lived project as "the most exciting and in many ways the happiest of my scientific life." The ambitious project had once set its sights on "Mars by 1965, Saturn by 1970."

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dom
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A farsighted genius whose ideas will take centuries to fully realise. Ad Astra!

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