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Paul Halpern

@phalpern

Physicist and Science Writer. Author of eighteen books, most recently The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes

calendar_today16-01-2009 03:37:10

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Paul Halpern
@phalpern

1 week ago

Richard Feynman delivering a lecture at the Jablonna conference on gravitational physics in August 1963.

The conference was held near Warsaw, Poland.

Note the 'Feynman diagrams' on the blackboard behind him.

Richard Feynman delivering a lecture at the Jablonna conference on gravitational physics in August 1963. The conference was held near Warsaw, Poland. Note the 'Feynman diagrams' on the blackboard behind him.
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