CGP Grey

The Simple Secret of Runway Numbers

Thank you, Bonnie Bees, for making this video possible: https://www.patreon.com/cgpgrey ## Related Videos + Talking about Making the video on Cortex: https://www.youtube.com/watch?v=dYYPV-ZlRIk + How to be a Pirate: https://www.youtube.com/watch?v=3YFeE1eDlD0 + Social Security Numbers: https://www.youtube.com/watch?v=Erp8IAUouus + Metric Paper: https://www.youtube.com/watch?v=pUF5esTscZI ## Special Thanks + Mylos Besseling: www.youtube.com/c/mylosairplanefan + Dr. Charlie Freeman: Department Chair and Distinguished Teaching Professor at SUNY Geneseo + Doug Moss: Owner of AeroPacific Consulting + John H. Mott: Advanced Aviation Analytics Institute for Research at Purdue University + Office of the Secretary General: International Civil Aviation Organization + Derek Muller: https://www.youtube.com/veritasium ## Patreon Executive Producers: Bobby, Bob Kunz, Andrew Bereza, Rebecca Wortham, Nevin Spoljaric, Donal Botkin, BN-12, Marco Arment, George Lin, Richard Jenkins, Phil Gardner, Martin, Steven Grimm, David Tyler, iulus, Xueqi, Colin Millions, Oliver Steele, Andrea Di Biagio, Henry Ng, Jason Lewandowski, Alex Simonides, سليمان العقل, Tim Stumbaugh, rictic, Nicholas Welna, Meekay, David White, Derek Argueta, shannon cherng, Anthony Paolilli, Emmett Jayhart, Katie Scheper, Andrew, Jeromy Johnson, Michael Ritter, Pluto, C C, Bogdan Toma, Brian Tillman, Chad Bramwell, jill hoffman, Nicolas Dedual, Derek Bonner, Mikko, Orbit_Junkie, Tómas Árni Jónasson, Dennis Dimka, Rick Edwards, Daniel Kwak, Bear, chrysilis, Drago175, Emil, Esteban Santana Santana, Freddi Hørlyck, John Rogers, Peter Lomax, Rhys Parry, Veronica Peshterianu, John Lee, Maxime Zielony, Elizabeth Keathley, Birdstryke, Darn https://www.patreon.com/cgpgrey ## Music & Sound + Kevin MacLeod Track Name: Fig Leaf Times Two Kevin MacLeod on YouTube: youtu.be/UcOXTd9Ix7g Music from: incompetech.com + David Rees: http://www.davidreesmusic.com + duckduckpony: https://freesound.org/people/duckduckpony/ ## Kurzgesagt Posters - https://shop-eu.kurzgesagt.org/collections/posters/products/black-holes-infographic-poster - https://shop-eu.kurzgesagt.org/collections/posters/products/periodic-table-poster