被遺忘的天才 NOVA: Percy Julian - Forgotten Genius

His house was firebombed. He lost his job on the eve of the Depression. He took on powerful, entrenched interests in the scientific establishment and overcame countless obstacles to become a world-class chemist, a self-made millionaire, and a humanitarian. Yet despite his achievements, Percy Julian’s story is largely unknown. The grandson of Alabama slaves, Julian broke the col...