The Science Behind Football'S First-Down Line

Published on Jan. 1, 2018

If you’ve watch American football on television, you may have wondered how they make that yellow first down line look like it’s actually down on the field. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Olivia Gordon ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://mentalfloss.com/article/27009/explaining-magic-yellow-first-down-line https://entertainment.howstuffworks.com/first-down-line2.htm https://entertainment.howstuffworks.com/question225.htm https://www.google.com/patents/US6100925 https://www.google.com/patents/US5917553 https://www.google.com/patents/US5953076 https://www.nytimes.com/2014/06/13/sports/the-tv-score-box-that-grew-and-grew.html http://www.discovery.com/tv-shows/mythbusters/mythbusters-database/jimmy-hoffa-buried-under-giants-stadium/ http://www.cnn.com/2010/US/02/04/new.york.hoffa/index.html http://www.espn.com/nfl/story/_/id/10354114/harris-poll-nfl-most-popular-mlb-2nd http://tvbythenumbers.zap2it.com/network-press-releases/no-surprise-64-americans-watch-nfl-football-73-of-men-55-of-women/ Images: https://commons.wikimedia.org/wiki/File:20130216_-_Flash_vs_Molosses_001.jpg https://commons.wikimedia.org/wiki/File:New_Meadowlands_Stadium_Mezz_Corner_(cropped).jpg https://commons.wikimedia.org/wiki/File:Football_Field_A.jpg

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