How the speed of light was measured https://tube.blueben.net/videos/watch/37b394dc-f73f-4d6d-8f39-fa4fbbeea2bc How the speed of light was measured We created this animation to show how scientists in the 19th century were able to measure the speed of light using a remarkably clever experiment. By sending a beam of light through a rotating toothed gear toward a distant mirror, researchers could determine how long the light took to travel there and back based on the exact speed at which the returning beam became blocked by the next tooth. Sat, 08 Aug 2026 13:08:51 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.blueben.net How the speed of light was measured https://tube.blueben.net/client/assets/images/icons/icon-96x96.png https://tube.blueben.net/videos/watch/37b394dc-f73f-4d6d-8f39-fa4fbbeea2bc All rights reserved, unless otherwise specified in the terms specified at https://tube.blueben.net/about and potential licenses granted by each content's rightholder.