When you refract light, you change its speed, slowing it down. https://en.wikipe...

		busterarm on Aug 14, 2020 \| parent \| context \| favorite \| on: Beta users of Starlink get downloads of 11 to 60 M... When you refract light, you change its speed, slowing it down. https://en.wikipedia.org/wiki/Refractive_index#:~:text=The%2.... https://www.zmescience.com/science/physics/how-to-slow-trap-...