質量ゼロの光が、なぜ物を動かせるのか？実は知らない光の正体

Light has no weight, so why can it push objects? Starting with this simple question, this video unravels the major misconceptions hidden within Einstein's famous equation. In fact, that equation is a simplified version that only applies to stationary objects; the complete equation includes another source of energy: momentum. Because massless light can never stop, it always possesses this momentum energy, and when it strikes an object, it certainly generates a pushing force. In 1619, Kepler intuitively grasped the pressure of light from the direction of a comet's tail, approximately 280 years later, Lebedev proved it experimentally, and in 2010, Japan's IKAROS probe successfully traveled to Venus using only the power of light. ________________________________________________________ [Membership] All our regular videos will continue to be available for free to everyone. As a token of our gratitude to members of the Sleep Plan and above, we will provide you with early access to new videos and exclusive, high-quality videos that can be enjoyed without ads. We will announce the release of new exclusive videos in community posts. The money we receive will be carefully used as funding for our activities. ↓↓Membership here↓↓    / @sleep_space   Audio: VOICEVOX [Reference Image] Understand in 3 minutes! What are sound sources, sound-producing bodies, amplitude, frequency, and Hertz (Hz)? | Qikeru: Learning in a fun and easy-to-understand way https://media.qikeru.me/sound-source-... Points to note when using the 7 colors of the rainbow in design. | M2 Production BLOG https://lvl-lvl.com/info/2016/06/30/p... Overview (Introduction) / What is "Theory of Relativity"? | Edokko https://note.com/eytn_1a5zb7x/n/n3fa0... E=pc - EWT https://energywavetheory.com/equation... The Meaning and Relationship of Momentum and Impulse Explained Clearly with Diagrams https://mathwords.net/undouryou Precise Measurement of the Orientation of Gluons Inside Protons | RIKEN https://www.riken.jp/press/2016/20160... Light Pressure [Radiation Pressure] https://fnorio.com/0118light_pressure... Kepler | Dictionary of Astronomy https://astro-dic.jp/kepler-johannes/ Comet | National Astronomical Observatory of Japan (NAOJ) https://www.nao.ac.jp/astro/basic/com... Ultra-low temperature atomic and molecular experiments using laser cooling technology https://www.eng.hokudai.ac.jp/labo/ph... Related information for the special feature article in Solarist Autumn Issue (Vol. 63) - Space Plaza - Sendai Astronomical Observatory https://www.sendai-astro.jp/square/bl... Tail (of a comet) | Astronomy Dictionary https://astro-dic.jp/tail/ Unraveling how sunlight powers spacecraft with solar sails | WIRED https://wired.jp/article/how-solar-sa... NASA to launch giant solar sail in 2014 | WIRED https://wired.jp/2013/03/28/solar-sai... Successful Launch of CubeSat for Solar Sail Demonstration Test | AstroPics https://astropics.bookbright.co.jp/ac... Alpha Centauri System | Astronomy Dictionary https://astro-dic.jp/alpha-centauri-s... #Space #Sleep #SleepBGM