Paul Halpern (@phalpern) 's Twitter Profile
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

ID: 19053113

linkhttp://allureofthemultiverse.com calendar_today16-01-2009 03:37:10

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