
SciShow Tangents
SciShow Tangents is the lightly competitive knowledge showcase from the geniuses behind the YouTube series SciShow. Every other Tuesday, join Hank Green, Ceri Riley, and Sam Schultz as they try to one-up and amaze each other with weird and funny scientific research... while not getting distracted. There will be tangents about video games, music, weird smells, surprisingly deep insights about life, and of course, poop, but it always comes back to the science.
Latest episodes

Jun 27, 2023 • 44min
Speed
This week we're talking about our old friend, Mr. Distance-Over-Time himself: Speed! From the speediest hedgehog to the slowiest slug, we all have speed, and we can all come together and listen to this podcast to learn more about how and why that is.SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]Walter Arnold first ever speeding tickethttps://automotivehistory.org/january-28-1896-the-first-speeding-ticket-2/https://www.historic-uk.com/HistoryUK/HistoryofBritain/Walter-Arnold-Worlds-First-Speeding-Ticket/https://blog.britishnewspaperarchive.co.uk/2014/01/28/the-first-speeding-fine-for-travelling-at-8-mph/[Fact Off]The Oh-My-God particle (high-energy cosmic ray)https://www.quantamagazine.org/the-particle-that-broke-a-cosmic-speed-limit-20150514/https://www.science.org/content/article/oh-my-god-its-real-particlehttps://arxiv.org/abs/astro-ph/9410067https://www.eurekalert.org/news-releases/858169 Needlefish jump-hunting of underwater preyhttps://www.newscientist.com/article/dn28483-the-first-fish-to-leap-out-of-water-and-attack-prey-from-air/https://www.mentalfloss.com/article/71727/first-fish-needlefish-attack-prey-airhttps://onlinelibrary.wiley.com/doi/10.1111/jfb.12799/abstract;jsessionid=357639AD25AB070E62DAFF95B2DFCE5E.f01t02https://www.abc.net.au/news/science/2019-01-03/why-do-fish-jump-and-how/10519986https://onlinelibrary.wiley.com/doi/10.1111/jfb.12278/abstract;jsessionid=2234B87FDA55C22723B4055F5C220218.f03t01[Ask the Science Couch]Fastest human body speeds & extreme g-forces (aviation, land speed, etc.)https://www.nasa.gov/centers/glenn/shuttlestation/station/microgex.htmlhttps://www.nasa.gov/missions/science/hyper.htmlhttps://books.google.nl/books?id=9-FXAAAAMAAJ&pg=PA71&dq=horse+riding+uterus+prolapse+trainhttps://books.google.nl/books?id=Lm03AQAAMAAJ&pg=PA337&dq=train+railways+vibrations+oscillations+-suspenson+-bridge+travellers&hl=en&sa=X&ved=0ahUKEwiXz4el-vfXAhXLKVAKHUz8B64Q6AEIOzADhttps://airandspace.si.edu/stories/editorial/man-behind-high-speed-safety-standardshttps://www.scientificamerican.com/article/star-wars-science-light-speed/[Butt One More Thing]Skipper caterpillar flinging frass pellets with anal plateshttps://journals.biologists.com/jeb/article/201/1/121/7701/Faecal-Firing-in-a-Skipper-Caterpillar-is-Pressure

Jun 13, 2023 • 48min
Numbers
Whether you're tracking the orbit of satellites, looking at your phone, or picking out a dozen fresh-baked donuts, the chances are pretty good that right this second, YOU are using numbers! Hate to break it to you, bud, but math is actually pretty important after all!Want more Deboki? Check her out at https://twitter.com/okidoki_boki to find info on all of the many projects she works on!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

Jun 6, 2023 • 41sec
Upcoming Schedule Announcement
No new episode this week! Come back next week, June 13, and every other week after that for a new episode. To learn more about Hank's recent cancer diagnosis, check out his video here.Thanks for you patience and we'll talk to you soon!

May 23, 2023 • 45min
Crust with Ashley Roboto
From the planet Earth to the humble pizza pie, some of the most important things in the whole universe have crusts! Including, most likely, the ears that are listening to this! Twitch streamer and friend of the show Ashley Roboto stops by to pick at the crusty scabs of knowledge with us!Can’t get enough AshleyRoboto? Follow her @AshleyRoboto and check out her Twitch stream here: https://www.twitch.tv/ashleyrobotoSciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

May 9, 2023 • 42min
Glass
"Oh, glass, big deal" you might be saying. Well guess what: if you're reading this, you're looking through glass right now to read about this episode about glass. You might even be touching glass to make this glass episode play! It's glass's world, you're just living in it! SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

Apr 25, 2023 • 43min
Color
Click here to check out the limited-time-only Tangents t-shirt inspired by this episode!Color: it's not just for art anymore. From red dwarfs to green algae to... uh... brown squirrels, science is chock full of color, too! SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreenSources:[Trivia Question]Longest-lasting rainbowhttps://www.smithsonianmag.com/smart-news/9-hour-rainbow-sets-new-guinness-record-180968527/[Fact Off]Crustacean larvae camouflaged glass eyeshttps://slate.com/technology/2023/02/shrimp-larvae-eye-glitter-nanotechnology.htmlhttps://www.sciencenews.org/article/glassy-eyes-young-crustaceans-predatorsBrainbows (fluorescent cell visualization using lots of colors)https://blog.addgene.org/evolution-of-brainbow-using-cre-lox-for-multicolor-labeling-of-neuronshttps://link.springer.com/chapter/10.1007/978-981-19-1352-5_6https://www.eurekalert.org/news-releases/698637https://www.eurekalert.org/news-releases/619298[Ask the Science Couch]Color psychology and emotional responseshttps://www.frontiersin.org/articles/10.3389/fpsyg.2015.00368/fullhttps://isom.ca/wp-content/uploads/2020/01/JOM_1979_08_4_01_Tranquilizing_Effect_of_Color_Reduces_Aggressive-.pdfhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831986/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4880552/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1612362/pdf/brmedj02002-0030.pdfhttps://www.nature.com/articles/435293a[Butt One More Thing]Caca-dauphin, the fashionable baby poop color https://theconversation.com/fornication-fluids-and-faeces-the-intimate-life-of-the-french-court-71982https://www.vanityfair.fr/actualites/articles/au-temps-de-marie-antoinette-le-caca-dauphin-etait-la-couleur-a-la-mode/54212

Apr 11, 2023 • 40min
Growth
Spring is upon us, which means a whoooole bunch of junk is going to start growing, such as flowers, grass, and little baby animals. So this week, Tangents is hacking into that growth mindset being displayed by mother nature to talk all about the science of stuff getting bigger! SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreenSources:[Trivia Question]Nishinoshima meters of growth spurt in 2020https://earthobservatory.nasa.gov/images/146935/nishinoshima-belches-ash-and-lava[Fact Off]Jackalope myth from Shope papilloma virushttps://gizmodo.com/rabbits-with-horns-meet-the-human-papillomavirus-5795996http://www.medirabbit.com/EN/Skin_diseases/Viral_diseases/Pap/Papilloma.htmElectroculture: lightning strikes helping shiitake mushrooms growhttps://iopscience.iop.org/article/10.1088/1361-6463/ab7627https://phys.org/news/2010-04-lightning-mushrooms.htmlhttps://physicsworld.com/a/artificial-lightning-strikes-encourage-growth-of-shiitake-mushrooms/https://www.ishs.org/ishs-article/29_34https://www.jstor.org/stable/2255657[Ask the Science Couch]Measures of growth in kids (bone age or bone plate closure, sugar preference)https://www.frontiersin.org/articles/10.3389/fped.2021.580314/fullPicture: https://www.frontiersin.org/files/Articles/580314/fped-09-580314-HTML/image_m/fped-09-580314-g001.jpghttps://www.hopkinsallchildrens.org/Patients-Families/Health-Library/HealthDocNew/X-Ray-Exam-Bone-Age-Studyhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4397276/https://training.seer.cancer.gov/anatomy/skeletal/growth.htmlhttps://www.npr.org/sections/thesalt/2011/09/26/140753048/kids-sugar-cravings-might-be-biologicalhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2764307/pdf/nihms100732.pdf[Butt One More Thing]Bat guano pile growth over 4,300 years https://news.agu.org/press-release/poop-core-records-4300-years-of-bat-diet-and-environment/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JG006026

Mar 28, 2023 • 44min
Ants
If you are on the planet Earth right now, there's probably a pretty good chance you're near an ant right now. So spare a thought for those hard working little fellows and unplug your headphones so they can hear this episode about ants (featuring special guest Maddie Sofia) and learn more about themselves! Want more Maddie Sofia in your life? Check them out on Twitter @maddie_sofia, watch the episode of PBS's Deep Look that inspired their poem, or go to Maddie's website to find countless more projects!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]First commercial formicarium https://archive.dartmouthalumnimagazine.com/article/1988/12/1/the-man-who-invented-the-ant-farm-not-to-mention-the-ant-coal-minehttps://www.dartmouth.edu/library/Library_Bulletin/Apr1993/LB-A93-Cramer.html?mswitch-redir=classichttps://www.usinflationcalculator.com/[Fact Off]Ants stealing food from a pitcher plant Ants swimming in pitcher plants: kinematics of aquatic and terrestrial locomotion in Camponotus schmitzihttps://www.cambridge.org/core/journals/journal-of-tropical-ecology/article/abs/swimming-ants-and-pitcher-plants-a-unique-antplant-interaction-from-borneo/603B9F3C479FF3D2CF369E23B4EF67E0https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2435.2011.01937.xMarauder ants and major worker piggyback rideshttps://content.ucpress.edu/chapters/10359.ch01.pdfhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4155725/https://sib.illinois.edu/suarez/local/suarez/uploads/2020/01/Wills_etal_2018_ARE.pdfhttps://link.springer.com/referenceworkentry/10.1007/978-3-319-90306-4_75-1https://www.annualreviews.org/doi/10.1146/annurev-ento-020117-043357 [Ask the Science Couch]Ant size/strength https://engineering.osu.edu/news/2014/02/study-ants-remarkable-strength-may-lead-powerful-micro-sized-robotshttps://www.wired.com/video/watch/why-humans-cant-lift-as-much-as-antshttps://askdruniverse.wsu.edu/2017/07/20/how_ants_are_strong/https://www.newscientist.com/article/2113824-coconut-crabs-bone-crushing-grip-is-10-times-stronger-than-ours/https://www.nature.com/scitable/knowledge/library/allometry-the-study-of-biological-scaling-13228439/[Butt One More Thing]Parasitic beetle disguised as ant butt https://www.theatlantic.com/science/archive/2017/02/the-beetle-that-pretends-to-be-an-army-ants-butt/516522/https://bmczool.biomedcentral.com/articles/10.1186/s40850-016-0010-x

Mar 21, 2023 • 35min
SciShow Tangents Classics - Weather
Original Airdate: January 26, 2021SciShow Tangents will be back next week with a new season and very special guest! Until then, please enjoy this beloved classic episode about Weather! Because it's spring and the weather is changing, you see!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!

Mar 14, 2023 • 47min
Aging
Every millisecond of every day, you, everyone you know, every rock on the ground, every star in the sky... they're all aging. And podcasts are no exception. In fact, Tangents is hitting a milestone in its aging as we bring season 4 to a close with this episode! You can't hear the dull roar of time lurching ever onward if you're listening to a funny show, so come listen!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]Epigenetic clock of dog years vs. human yearshttps://www.smithsonianmag.com/smart-news/theres-new-better-formula-calculating-dog-years-180973575/https://pubmed.ncbi.nlm.nih.gov/32619550/[Fact Off]Brown-Séquard and using testicle injections to reverse aginghttps://archive.org/details/Brown-sequardC.-e.TheEffectProducedOnManBySubcutaneousInjectionsOfAhttps://academic.oup.com/brain/article/140/5/1525/3760152https://www.jci.org/articles/view/57089Sperm aging/senescence in toads and other vertebrateshttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0050820https://www.eurekalert.org/news-releases/683429https://support.webb.uu.se/digitalAssets/52/a_52297-f_BeckyTREE.pdfhttps://pubmed.ncbi.nlm.nih.gov/21332857/[Ask the Science Couch]Causing/reversing aging in mice through epigenetics (ICE - inducible changes to epigenome)https://hms.harvard.edu/news/loss-epigenetic-information-can-drive-aging-restoration-can-reversehttps://www.cell.com/cell/fulltext/S0092-8674(22)01570-7https://www.news-medical.net/news/20230115/The-loss-of-epigenetic-information-accelerates-the-aging-process.aspxhttps://newatlas.com/biology/epigenetic-reboot-reverse-aging-extend-lifespanhttps://www.biorxiv.org/content/10.1101/2023.01.04.522507v1https://www.nature.com/articles/s41586-020-2975-4[Butt One More Thing]C. elegans rapid senescence (kind of lactation)https://www.eurekalert.org/news-releases/930463https://www.nature.com/articles/s41467-021-25821-y
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