Thanks to Raycon for sponsoring this video. Go to buyraycon.com/scishow and check out some of their Black Friday and Cyber Monday deals! If your hair gets frizzy when the humidity is high, try not to think of it as a bad hair day—you're really just a human hygrometer! Hosted by: Stefan Chin SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Eric Jensen, Matt Curls, Sam Buck, Christopher R Boucher, Avi Yashchin, Adam Brainard, Greg, Alex Hackman, Sam Lutfi, D.A. Noe, Piya Shedden, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: www.merriam-webster.com/dictionary/frizzy www.ncbi.nlm.nih.gov/pmc/articles/PMC4201279/ www.smithsonianmag.com/science-nature/why-humidity-makes-your-hair-curl-21127724/ www.sciencedirect.com/topics/chemistry/hydrogen-bond www.pbs.org/newshour/science/8-things-didnt-know-humidity thebeautybrains.com/2006/10/the-top-3-causes-of-frizzy-hair/ dspace.mit.edu/bitstream/handle/1721.1/32779/57571289-MIT.pdf;sequence=2 www.academia.edu/1162670/_Scientific_standards_in_the_1780s_A_controversy_over_hygrometers_in_John_Heilbron_and_Ren%C3%A9_Sigrist_eds_Jean-Andr%C3%A9_Deluc._Historian_of_Earth_and_Man_Geneva_Slatkine_2011_p._147-183?source=swp_share www.wikihow.com/Make-a-Hygrometer www.yalescientific.org/2010/04/everyday-qa-how-does-a-perm-work/ www.academia.edu/27619626/A_Simple_Hair_Hygrometer ---------- Images: commons.wikimedia.org/wiki/File:Whalebone_hygrometer-MHS_1085-P4070321-gradient.jpg commons.wikimedia.org/wiki/File:Horace-B%C3%A9n%C3%A9dict_de_Saussure.jpg

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