Physicists have long sought to describe the universe in terms of equations. Now, S James Gates explains how research on a class of geometric symbols known as adinkras could lead to fresh insights into ...

Do you know what the hell is the Schwarzschild radius? I didn’t have a clue, but now I know that if you compress Earth to an 8mm radius ball, you will get a black hole. My fascination didn’t stop ...

This is a preview. Log in through your library . Journal Information PNAS is the world's most-cited multidisciplinary scientific serial. It publishes high-impact research reports, commentaries, ...

IN 1931, the International Union of Pure and Applied Physics appointed a commission consisting of Profs. Keesom, Kennelly and Fabry under the chairmanship of Sir Richard Glazebrook, with Dr. Ezer ...