Why Do We Still Use Knots

What is a knot Neil deGrasse Tyson and comedian Chuck Nice break down how we measure nautical speed. Learn about latitude and longitude and whether aliens know about the prime meridian. How has ocean navigation changed since the age of the pirates Timestamps: 00:00 Introduction: Knots 00:38 Latitude Longitude 03:15 Dividing Longitude Into Arcminutes 07:34 Airspeed GPS 8:14 Closing: What is a Knot Check out our second channel, StarTalkPlus Get the NEW StarTalk book, To Infinity and Beyond: A Journey of Cosmic Discovery on Amazon: Support us on Patreon: FOLLOW or SUBSCRIBE to StarTalk: Twitter: Facebook: Instagram: About StarTalk: Science meets pop culture on StarTalk Astrophysicist Hayden Planetarium director Neil deGrasse Tyson, his comic cohosts, guest celebrities scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up , StarTalk, NeildeGrasseTyson