

SciShow Tangents
Complexly
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.
Episodes
Mentioned books

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

Mar 7, 2023 • 40min
Farming
Learning is a little like farming, in a way. You sow your brain field with facts seeds, nurture those seeds into thoughts and ideas and voila: you're smart! So slap on your headphones and jump on that tractor: We've got a bumper crop of knowledge to harvest!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]Circulation of 1938 Old Farmer’s Almanachttps://www.almanac.com/history-old-farmers-almanachttps://www.theatlantic.com/technology/archive/2015/11/how-the-old-farmers-almanac-previewed-the-information-age/415836/[Fact Off]Bradford watermelon seeds that people would die forhttps://bradfordwatermelons.com/2014/08/our-story-the-long-version/https://www.mentalfloss.com/article/71931/super-sweet-watermelon-has-deadly-historyhttps://www.treehugger.com/bradford-watermelons-were-juicy-delicious-people-literally-die-4862619Hearing loss in farmed salmon because of weird otolith formationhttps://pursuit.unimelb.edu.au/articles/farmed-salmon-are-deaf-and-now-we-know-whyhttps://journals.biologists.com/jeb/article/220/16/2965/33518/Rapid-growth-causes-abnormal-vaterite-formation-inhttps://www.nature.com/articles/srep25249https://www.frontiersin.org/articles/10.3389/fvets.2021.709850/full[Ask the Science Couch]Animal agriculture (ants, termites, pocket gophers)https://www.mcgill.ca/oss/article/did-you-know/did-you-know-leafcutter-ants-are-farmers-who-grow-fungihttps://asm.org/Articles/2017/September/the-leaf-cutter-ant-s-50-million-years-of-farminghttps://www.theverge.com/2016/6/25/12024324/termite-farming-25-million-years-ago-before-humanshttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0156847https://www.eurekalert.org/news-releases/957505https://www.cell.com/current-biology/fulltext/S0960-9822(22)00915-0Video of pocket gopher pulling plant: https://www.eurekalert.org/multimedia/940458[Butt One More Thing]Pig sty latrineshttps://www.artic.edu/articles/629/pigsty-and-latrineshttps://www.sixthtone.com/news/1001550/seats%2C-squats%2C-and-leaves-a-brief-history-of-chinese-toiletshttps://www.google.com/books/edition/_/N5dN_A29v58C?hl=en&gbpv=1&bsq=fertilizer

Feb 28, 2023 • 41min
Lasers
In all of science, there are very few things conceptually cooler than lasers. A beam of light you can use to blast aliens? Heck yeah! But are lasers actually as cool in reality as they are in science fiction? Probably not! But I guess you'll have to listen to find out for sure.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[Truth or Fail]Gold-plated bacteriaContact lenses that shoot lasersLead into gold with lasers[Trivia Question]Universal Product Code first scanned in grocery storehttps://www.smithsonianmag.com/innovation/history-bar-code-180956704/[Fact Off]Laser cooking of printed chickenhttps://www.youtube.com/watch?v=jct3f92rIOEhttps://www.scientificamerican.com/article/3-d-printed-chicken-dinner-cooked-by-lasers/Laser lightning rod for deflection/protectionhttps://www.unige.ch/communication/communiques/en/2023/devier-la-foudre-grace-au-paratonnerre-laserhttps://www.nature.com/articles/s41566-022-01139-zhttps://www.nssl.noaa.gov/education/svrwx101/lightning/faq/http://www.usfcam.usf.edu/cam/exhibitions/1998_12_mccollum/supplemental_didactics/21.uman2.pdf[Ask the Science Couch]Long-distance lasers and masers https://www.faa.gov/about/initiatives/lasers/hazardshttps://spie.org/news/12-09-laser-ranging?SSO=1http://ccom.unh.edu/theme/lidarhttps://www.icrar.org/megamaser/https://arxiv.org/abs/2204.02523 [Butt One More Thing]Low-level laser therapy for butt (or any) tendonshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8886125/https://my.clevelandclinic.org/health/diseases/22960-gluteal-tendinopathyhttp://www.utahorthopediccenters.com/hip/gluteus-medius-tendinopathy-or-dead-butt-syndrome/

Feb 21, 2023 • 42min
Poop
The bodily function so universal, there's a kids book all about how everybody does it! But... is that kids book a lie?! Find out the answer to that and way more in this very overdue episode of Tangents!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]Penguin poop distance traveledhttps://iposeogsekk.com/penguano.pdfhttps://improbable.com/ig/winners/#ig2005[Fact Off]AI listening to sounds of poop/diarrhea/farthttps://www.newscientist.com/article/2350082-ai-listens-to-toilet-sounds-to-guess-whether-people-have-diarrhoea/https://www.inverse.com/innovation/fart-monitoring-aiDagger made of frozen poop debunked (or, at the very least, not effective in lab conditions)https://www.sciencedirect.com/science/article/pii/S2352409X19305371https://nautil.us/the-problem-with-the-frozen-poop-knife-study-237572/https://www.cbc.ca/radio/asithappens/as-it-happens-friday-edition-1.5282456/why-scientists-tried-and-failed-to-make-a-knife-out-of-frozen-poop-1.5282458[Ask the Science Couch]Period poops (progesterone/estrogen & prostaglandins)https://my.clevelandclinic.org/health/articles/24411-prostaglandinshttps://pubmed.ncbi.nlm.nih.gov/3297513/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3823955https://health.clevelandclinic.org/why-do-you-poop-more-on-your-period/

Feb 14, 2023 • 42min
Mating
In honor of Valentine's Day, that most cherished day of beauty and love, the Tangents crew gets real down and dirty by telling you more than you could ever want to know about sex harpoons, cannibalism, living sperm, and some other utterly un-romantic methods of copulation employed by the animal kingdom! 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

Feb 7, 2023 • 38min
Spit
You need to clean a smudge of your glasses? Use some spit! Gotta make some food moist so you can swallow it? Why not try spit? Lips too dry to whistle a tune? My friend, spit is the bodily excretion for you! Spit: don't leave home without 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 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]Minor salivary glandshttps://www.smithsonianmag.com/smart-news/researchers-may-have-discovered-new-organ-set-salivary-glands-hidden-your-head-180976104/[Fact Off]Bowerbird making “paint” out of salivahttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3996615/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.2005.0908-8857.03549.xhttps://www.sciencedirect.com/science/article/abs/pii/S0003347213001097?via%3Dihubhttps://royalsocietypublishing.org/doi/10.1098/rsbl.2005.0325https://australian.museum/learn/animals/birds/satin-bowerbird/https://australian.museum/learn/animals/birds/satin-bowerbird/Spitting cobras evolved to defend against hominids throwing rockshttps://www.newsweek.com/how-it-feels-acobra-spits-face-revealed-excruciating-detail-1749490https://www.earthtouchnews.com/discoveries/discoveries/spitting-cobras-may-have-evolved-unique-venom-to-defend-from-ancient-humans/https://news.cornell.edu/stories/2021/01/study-did-cobras-first-spit-venom-scare-pre-humans[Ask the Science Couch]Compressing salivary glands aka “gleeking”https://www.ncbi.nlm.nih.gov/books/NBK542272/https://www.health.com/mind-body/what-is-gleekinghttp://www.vivo.colostate.edu/hbooks/pathphys/digestion/pregastric/salivary.html [Butt One More Thing]Dung-spitting competitionshttps://www.huffpost.com/entry/dung-spitting-contest-northern-ireland_n_55ae6aebe4b0a9b9485290c1https://www.ripleys.com/weird-news/bokdrol-spoeg/https://www.sbnation.com/lookit/2014/8/1/5960987/spitting-antelope-poop-is-a-sport-kudu-bokdrol-spoeg

12 snips
Jan 31, 2023 • 38min
SciShow Tangents Classics - Artificial Intelligence
Original Airdate: February 19, 2019It seems like everyone's using Artificial Intelligence these days, so we thought we'd dip back into our archives for a little refresher on just what the heck AI even is. Plus, meet the character find of 2023: President Smartest Dog in the World!