What is the Doppler Effect? | Neil deGrasse Tyson Explains...

What is the Doppler Effect? On this explainer, Neil deGrasse Tyson and comic co-host Chuck Nice break down this famous phenomenon in the electromagnetic spectrum and how we use it in both science and our daily lives. What’s the sound of a car zooming by? We explore the change in frequency with distance. Find out how this effect applies to light and what “redshift” is. What do we learn from a Doppler shift? Learn about how the radar speed guns that traffic cops use work and possibly how to get yourself out of a speeding ticket. Discover the many ways we use the Doppler Effect every day! Get the NEW Cosmic Queries book (5/5 ⭐s on Amazon!): https://amzn.to/3dYIEQF Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #NeildeGrasseTyson 0:00 - Introduction 0:30 - History of the Doppler Effect 1:49 - Wave Crests 3:45 - Nyoom 6:25 - Light Waves 7:33 - What Does The Doppler Shift Measure? 8:26 - Radar Guns 11:17 - Doppler Radar 12:52 - Redshift 16:08 - Closing Notes