From poking their own eyes, to drinking a patient's vomit, some extremely passionate scientists have done pretty outrageous things to themselves in the name of science. We're conducting a survey of our viewers! If you have time, please give us feedback: www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: ---------- Support SciShow by becoming a patron on Patreon: 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: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: www.newtonproject.ox.ac.uk/view/texts/normalized/NATP00004 aty.sdsu.edu/vision/others.html www.lib.cam.ac.uk/exhibitions/Footprints_of_the_Lion/private_scholar.html eyewiki.aao.org/Solar_Retinopathy pubs.acs.org/subscribe/archive/tcaw/13/i04/pdf/404chronicles.pdf publicdomainreview.org/2014/08/06/o-excellent-air-bag-humphry-davy-and-nitrous-oxide/ www.ncbi.nlm.nih.gov/pmc/articles/PMC4439684/#sec1-3title alphahistory.com/pastpeculiar/1804-med-student-drinking-black-vomit/ collections.nlm.nih.gov/ext/mhl/2554015R/PDF/2554015R.pdf www.ncbi.nlm.nih.gov/pmc/articles/PMC2441371/pdf/tacca00106-0113.pdf www.newyorker.com/tech/elements/demon-core-the-strange-death-of-louis-slotin nerdist.com/tickling-the-dragons-tail-the-story-of-the-demon-core/ xkcd.com/radiation/ www.nrc.gov/reading-rm/basic-ref/glossary/lethal-dose-ld.html mterasaki.us/etc/forssman.pdf www.annalsthoracicsurgery.org/article/0003-4975(90)90272-8/pdf Image Sources: commons.wikimedia.org/wiki/Category:Werner_For%C3%9Fmann#/media/File:Werner_Forssmann.jpg en.wikipedia.org/wiki/Werner_Forssmann#/media/File:Werner_Forssmann_nobel.jpg upload.wikimedia.org/wikipedia/commons/4/4d/Harry-K-Daghlian.gif commons.wikimedia.org/wiki/File:Tickling_the_Dragons_Tail.jpg commons.wikimedia.org/w/index.php?search=demon+core&title=Special:Search&profile=images&fulltext=1&searchToken=7flitf5fa448whcbbjy4p2qjw#/media/File:Slotin_accident_mockup-11.jpg en.wikipedia.org/wiki/Louis_Slotin#/media/File:Slotin_Los_Alamos.jpg en.wikipedia.org/wiki/File:YellowFeverVirus.jpg commons.wikimedia.org/w/index.php?search=Sir+Humphrey+Davy&title=Special:Search&go=Go&searchToken=2vgthm6rdc5x1bfnp8933abft#/media/File:Sir_Humphrey_Davy_1849_RGNb10408769.09.tif commons.wikimedia.org/wiki/Category:Nitrous_oxide#/media/File:Nitrous-oxide-3D-balls.png commons.wikimedia.org/wiki/File:Sir_Humphry_Davy,_Bt_by_Thomas_Phillips.jpg commons.wikimedia.org/wiki/Isaac_Newton#/media/File:Sir_Isaac_Newton_by_Sir_Godfrey_Kneller,_Bt.jpg commons.wikimedia.org/wiki/File:Bodkin_MET_224402.jpg commons.wikimedia.org/wiki/Isaac_Newton#/media/File:Isaac_Newton,_English_School,_1715-20.jpg