Sally Le Page joins us on Quiz Show this week, where we celebrate the submission of her doctoral thesis with the most peaceful, relaxing questions we could devise, assuming you don’t count the volcanoes or screamed-at caterpillars. Hosted by: Ceri Riley Sally's Channel: www.youtube.com/shedscience 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 ---------- Dooblydoo thanks go to the following Patreon supporters: Alex Schuerch, Alex Hackman, Andrew Finley Brenan, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, 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: Medicinal plants www.jstor.org/stable/4257221?seq=1#page_scan_tab_contents www.wired.com/2014/07/fantastically-wrong-doctrine-of-signatures/ Caterpillar blog.perunature.com/2015/04/we-found-and-yelled-at-crazy-tentacled.html Krakatoa clouds news.nationalgeographic.com/2016/06/now-best-time-see-noctilucent-clouds-photos-space-astronomy/ journals.ametsoc.org/doi/abs/10.1175/1520-0477%281999%29080%3C2081%3AWNCCBT%3E2.0.CO%3B2 Nacreous clouds www.antarctica.gov.au/about-antarctica/environment/atmosphere/polar-stratospheric-clouds www.nasa.gov/multimedia/imagegallery/image_feature_680.html Sperm storage www.ncbi.nlm.nih.gov/pubmed/11396580 www.cell.com/current-biology/pdf/S0960-9822(11)01252-8.pdf Space weather arxiv.org/abs/1711.08053 www.st-andrews.ac.uk/physics/news/Panda_news/chHExolightning_28_04_16.php Top quark www.fnal.gov/pub/science/historical-results/ arxiv.org/abs/1710.06019 physics.aps.org/articles/v7/61 ---------- Images: commons.wikimedia.org/wiki/File:Flowering_bloodroot_-_potted_P.2005.04.04.jpg commons.wikimedia.org/wiki/File:Two_English_Walnuts.jpg www.instagram.com/nextgenscientist/ www.youtube.com/watch?v=RoxA1Xy7k5k en.wikipedia.org/wiki/File:Helkivad_%C3%B6%C3%B6pilved_Kuresoo_kohal.jpg en.wikipedia.org/wiki/File:Helkivad_%C3%96%C3%B6pilved_(2).jpg commons.wikimedia.org/wiki/File:Krakatoa_eruption_lithograph.jpg commons.wikimedia.org/wiki/File:Eiswolken.jpg commons.wikimedia.org/wiki/File:Garcinia_indica_yellow_and_red_syrups_and_drinks.jpg commons.wikimedia.org/wiki/File:Artist_Illustration_of_planet_HAT-P-11b.jpg ---------- Sounds: freesound.org/people/G.Lamont/sounds/118068/ freesound.org/people/snowflakes/sounds/72190/ freesound.org/people/jacksonacademyashmore/sounds/414208/ freesound.org/people/cryanrautha/sounds/371848/ freesound.org/people/starvingpony/sounds/411786/ freesound.org/people/kyles/sounds/455746/ freesound.org/people/Sandermotions/sounds/277022/ freesound.org/people/filmsndfx/sounds/369673/ freesound.org/people/jimhancock/sounds/256128/