When you look the mirror, the image you see is accurate, right? Sure you left and right side get flipped, but what about your size, color and proportions? When we think about mirrors relativistically, there are a few strange (but tiny) effects which mean your appearance in the mirror is distorted. Cool Worlds explains what's going on, why it happens and how big an effect we are talking about. ::More about this Video:: ► The following paper gives a derivation of why the law of reflection breaks down, although it not model the reaction of the mirror in response to the photon: Aleksandar Gjurchinovski, "Reflection from a moving mirror - a simple derivation using the photon model of light": https://arxiv.org/abs/1207.0998 ► Physics Girl, "Why do mirrors flip horizontally (but not vertically)?": https://www.youtube.com/watch?v=vBpxhfBlVLU ► Vsauce, "What Color is a Mirror?": https://www.youtube.com/watch?v=-yrZpTHBEss ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Background music by MelodySheep "Secrets of the Stars": https://www.youtube.com/watch?v=BuxFXHircaI ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!