The Day Feynman Worked Out Black-Hole Radiation on My Blackboard
After a few minutes, Richard Feynman had worked out the process of spontaneous emission, which is what Stephen Hawking became famous for a year later.Wikicommons The amazing image of a black hole unveiled Wednesday, along with data from the Event Horizon Telescope, may not substantiate Stephen Hawking’s famous theory that radiation, an example of spontaneous […]
Another Side of Feynman
History:Nine letters by Freeman Dyson portray his relationship with the Nobel Laureate.
To Save Drowning People, Ask Yourself “What Would Light Do?”
Imagine you’re a lifeguard and you see someone struggling to stay afloat. Being a responsible lifeguard, you want to get to them as quickly as possible. You’re pretty fast when swimming, but even faster running on sand. So what’s the quickest route to get to the swimmer? It may not sound like it, but this […]
Consciousness Is Made of Atoms, Too
In “A Stroll Through the Worlds of Animals and Men,” published in 1934, the Estonian biologist Jakob von Uexküll attempted to show that every animal creates a “world” (he called it its umwelt) from stimuli in the environment to which it responds. Illustration by Ivana Rezek / Flickr In his first lecture on physics to […]
My Life with the Physics Dream Team
History:Freeman Dyson on working with the greatest physicists of the 20th century.
Why “Hawking Radiation” Was Almost “Feynman Radiation”
Nautilus’ Ingenious this month, Alan Lightman, is a successful writer and physicist, and one of the very rare people to receive an appointment in both science and humanities at MIT*. He did his doctoral research at Caltech while Richard Feynman was a professor there. One day, Lightman was on hand to see the brilliant and […]