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Why Don't Fire Hydrants Freeze and Explode?

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Pipes can freeze in the winter, but you never hear about fire hydrants freezing. What makes them safe from the cold temperatures in winter time? SciShow Finds: https://scishowfinds.com/ We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Hank Green ---------- 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://www.todayifoundout.com/index.php/2014/08/reason-fire-hydrants-dont-freeze-winter/ http://media.cygnus.com/files/base/FHC/document/2011/09/weeklydrills34final_10461393.pdf http://media.cygnus.com/files/base/FHC/document/2011/11/weeklydrills43final0_10457995.pdf https://www.livescience.com/43408-why-do-freezing-pipes-burst.html https://www.plumbingsupply.com/residential-water-pressure-explained.html http://www.firehydrant.org/info/faqs_ask7.html https://books.google.com/books?id=GUXyAAAAQBAJ&pg=PA495 Images: https://en.wikipedia.org/wiki/File:Downtown_Charlottesville_fire_hydrant.jpg https://en.wikipedia.org/wiki/File:Dry_hydrant.jpg https://commons.wikimedia.org/wiki/File:Hydrant_Insel_Krk_Kroatien.jpg https://commons.wikimedia.org/wiki/File:Hydrant_in_Jerusalem.jpg https://commons.wikimedia.org/wiki/File:Berlin_hydrant_20050211_p1000517.jpg https://en.wikipedia.org/wiki/File:1869BirdsillHollyHydrantSideTop.jpg https://commons.wikimedia.org/wiki/File:Fire_hydrant_UK.jpg.

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2017 Dec 05, 04:00:02

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