General Relativity! Einstein's Equivalence Principle and the Curvature of Space-time | Doc Physics - Смотреть видео или скачать видео в MP4, музыку MP3 на телефон или компьютер
Einstein had a knack for shaking things up. Accelerated reference frames are equivalent to gravitational fields, so a gravitational field can be viewed as acceleration, which leads to some really interesting gravitational effects on light. Light feels gravity.