SciShow Tangents

SciShow Tangents

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SciShow Tangents episodes

  • Batteries

    Click here to check out the limited-time-only Tangents t-shirt inspired by this episode! https://store.dftba.com/products/shirt-of-the-month-shrimp-battery

    Batteries are all around us, in things we use all the time, and in all different shapes and sizes, so of course we know exactly how they all work, right? Nope! Not even close! The bizarre breadth of our battery banter includes Ben Franklin, tiny computers, and...shrimp? 

    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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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]

    Oxford Electric Bell battery lifespan

    https://www.mentalfloss.com/article/52147/what%E2%80%99s-world%E2%80%99s-longest-running-science-experiment

    https://archwww.physics.ox.ac.uk/history/Exhibit1.html

    https://www.smithsonianmag.com/smart-news/mystery-continuously-functioning-battery-1840-180954028/

    https://x.com/UniofOxford/status/1610593348464640001?s=20

    [Fact Off]

    Edible battery for sustainability (and maybe child safety)

    https://academic.oup.com/jimb/article/45/5/313/5996662

    https://arstechnica.com/science/2023/05/researchers-craft-a-fully-edible-battery/

    https://pubmed.ncbi.nlm.nih.gov/36919977/

    https://www.popsci.com/technology/edible-battery-prototype/

    https://www.connecticutchildrens.org/ear-nose-and-throat/what-to-do-if-your-child-swallows-or-ingests-a-button-battery/#:~:text=Every%20year%2C%20about%202%2C500%20kids,stomach%2C%20it%20can%20be%20fatal.

    https://www.npr.org/sections/alltechconsidered/2016/08/31/491947946/how-an-edible-battery-could-power-medical-robots-you-swallow

    Platypus electroreception study using batteries

    https://pubmed.ncbi.nlm.nih.gov/3945317/

    https://www.latimes.com/archives/la-xpm-1986-03-12-vw-18644-story.html

    https://www.jstor.org/stable/56002?typeAccessWorkflow=login

    https://journals.biologists.com/jeb/article/202/10/1447/8186/Electroreception-in-monotremes

    [Ask the Science Couch]

    Grid-scale storage with batteries

    https://www.iea.org/energy-system/electricity/grid-scale-storage

    https://www.nrel.gov/docs/fy19osti/74426.pdf

    https://www.sciencedirect.com/science/article/pii/S1364032122001368

    https://www.sciencedirect.com/science/article/pii/S2352152X17304437

    https://www.science.org/content/article/new-generation-flow-batteries-could-eventually-sustain-grid-powered-sun-and-wind

    https://www.sciencedirect.com/science/article/abs/pii/S1364032113005418?via%3Dihub

    https://www.scientificamerican.com/article/rechargeable-molten-salt-battery-freezes-energy-in-place-for-long-term-storage/

    [Butt One More Thing]

    Microbial battery with exoelectrogens and poop water

    https://www.pnas.org/doi/10.1073/pnas.1307327110

    https://www.theverge.com/2013/9/19/4747532/scientists-use-poop-to-generate-electricity


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    49 min
  • Trick or Treat Month: Slime with Alexis Nikole Nelson!

    Trick or Treat Month returns... and this time it's personal! Join us for another month of spooky themes and special surprise guest apparitions! Try not to get too scared!

    And so we close the ancient, flesh-bound spell book on another Trick or Treat Month... but we're going out on top, baby! Alexis Nikole Nelson has appeared, as if by magic, to lead us into the deep, dark woods and point out all the slimy, sticky, gross stuff on the ground that she says we can eat. I guess I trust her! 

    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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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

    [This or That]

    Round 1 - Blue glowing slime

    https://scripps.ucsd.edu/news/tube-worm-slime-displays-long-lasting-self-powered-glow

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5103273/

    Round 2 - Eating parents’ slime

    https://animalmicrobiome.biomedcentral.com/articles/10.1186/s42523-023-00243-x

    https://www.wired.co.uk/article/caecilians-limbless-amphibian-skin-feeding-young-cloaca

    https://www.sciencedaily.com/releases/2010/10/101029104603.htm

    https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/pmic.200500591

    Round 3 - Snottites

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3246232/

    https://www.nationalgeographic.com/science/article/see-the-ugly-beauty-that-lives-in-a-toxic-cave

    Round 4 - Mating plug

    https://journals.biologists.com/jeb/article/218/9/1410/14572/Size-dependence-in-non-sperm-ejaculate-production

    https://link.springer.com/article/10.1023/A:1005596707591

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564092/

    https://onlinelibrary.wiley.com/doi/full/10.1002/mrd.22689

    [Trivia Tiebreaker]

    Hagfish slime on road

    https://www.southernfriedscience.com/your-car-has-just-been-crushed-by-hagfish-frequently-asked-questions/

    [Ask the Science Couch]

    Slime molds and biocomputers

    https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/physarum-polycephalum

    https://www.nature.com/articles/s41598-019-55749-9

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5755296/

    https://link.springer.com/article/10.1007/s12668-014-0156-3

    https://www.newscientist.com/article/dn23713-slime-mould-could-make-memristors-for-biocomputers/

    https://techhq.com/2023/04/biocomputers-an-alternative-to-quantum-computing/

    [Butt One More Thing]

    Bird nestling fecal sac / mucus membrane 

    https://www.audubon.org/news/what-are-fecal-sacs-bird-diapers-basically

    https://onlinelibrary.wiley.com/doi/abs/10.1111/jav.00353


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    43 min
  • Trick or Treat Month: Theories with Dan Schreiber!

    Trick or Treat Month returns... and this time it's personal! Join us for another month of spooky themes and special surprise guest apparitions! Try not to get too scared!

    Our yearly cavalcade of terror rolls on with a new Grand Marshall of Terror: podcaster, author, and mad genius Dan Schreiber! And he's here to tell us about the weirdest, creepiest, most otherworldly theories ever devised of! There are lots of science-y ideas out there, and not all of them can be right, after all!  

    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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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]

    The Classification of Quasithin Groups page number

    https://www.livescience.com/33628-funny-physics-theorems-names.html

    https://www.scientificamerican.com/article/researchers-race-to-rescue-the-enormous-theorem-before-its-giant-proof-vanishes/

    https://books.google.com/books/about/The_Classification_of_Quasithin_Groups.html?id=KC0ZAQAAIAAJ

    https://www.newscientist.com/article/dn20893-prize-awarded-for-largest-mathematical-proof/

    [Fact Off]

    Infinite monkey theorem test in a zoo

    https://law.stanford.edu/wp-content/uploads/2017/10/PATENTS-IN-AN-ERA-OF-INFINITE-MONKEYS-AND-ARTIFICIAL-INTELLIGENCE.pdf

    https://www.npr.org/sections/13.7/2013/12/10/249726951/the-infinite-monkey-theorem-comes-to-life

    http://news.bbc.co.uk/2/hi/3013959.stm

    https://www.theguardian.com/uk/2003/may/09/science.arts

    Nostradamus: predictions & jam & benzoic acid

    [Ask the Science Couch]


    Theory of mind & false belief tests

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3629913/

    https://www.cambridge.org/core/journals/behavioral-and-brain-sciences/article/does-the-chimpanzee-have-a-theory-of-mind/1E96B02CD9850016B7C93BC6D2FEF1D0

    https://psycnet.apa.org/record/2010-18540-002

    https://link.springer.com/referenceworkentry/10.1007/978-1-4419-1698-3_91

    [Butt One More Thing]

    Freudian developmental theory & the anal stage

    https://www.ncbi.nlm.nih.gov/books/NBK557526/


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    55 min
  • Trick or Treat Month: Tombs with Siobhan Thompson!

    Trick or Treat Month returns... and this time it's personal! Join us for another month of spooky themes and special surprise guest apparitions! Try not to get too scared!

    This year's ghastly Grand Guignol of science and screams begins at the end: the tomb! And we dug up an old friend, Dimension 20's Siobhan Thompson, to guide us deep into the cursed catacombs of knowledge! 

    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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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


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    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

    50 min
  • Hygiene

    Visit HENSONSHAVING.com/TANGENTS to pick the razor for you and use code TANGENTS and you’ll get two years' worth of blades free! 

    A big part of being a human is that you get progressively more gross as the day goes on. Various parts start stinking, hair grows all over your face, you're touching who-knows-what... luckily for all of us, someone a long time ago decided to invent hygiene! Otherwise we'd have to lick ourselves like cats!

    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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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

    [Definition] 

    History of hygiene https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2542893/ [Trivia Question] Pelagic thresher sharks visit blue-streaked cleaner wrasse stations https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0014755 https://www.fisheries.noaa.gov/feature-story/sharks-rays-and-climate-change-impacts-habitat-prey-distribution-and-health 

    [Fact Off] 

    Bronze Age ivory lice comb with Canaanite language 

    https://jjar.huji.ac.il/sites/default/files/jjar/files/jjar2_art4_lachish_p76-119_2022-10-12_01.pdf https://www.sciencefocus.com/news/4000-year-old-head-lice-comb-found-inscribed-with-phrase-using-the-alphabet https://www.sciencenews.org/article/canaanite-comb-lice-israel-alphabet 

    Tampon Task Force & menstrual hygiene https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5436965/ https://catalystjournal.org/index.php/catalyst/article/view/28788/_9 https://www.youtube.com/watch?v=KYXUQDzSg4o&feature=youtu.be https://srh.bmj.com/content/early/2023/07/03/bmjsrh-2023-201895 https://www.eurekalert.org/news-releases/997629 

    [Ask the Science Couch] 

    Antiperspirant aluminum compounds - how they work & are they harmful 

    https://cen.acs.org/articles/90/i27/Deodorants-Antiperspirants.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3813027/ https://www.webmd.com/breast-cancer/features/antiperspirant-facts-safety https://www.smithsonianmag.com/history/how-advertisers-convinced-americans-they-smelled-bad-12552404/ 

    [Butt One More Thing] 

    Mandrills teach their children hygienic behaviors to avoid peri-anal parasites 

    https://royalsocietypublishing.org/doi/10.1098/rspb.2022.2349 https://www.eurekalert.org/news-releases/979546


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    46 min
  • Big vs Small with Tiny Matters

    Sam's out this week, but worry not: he found another Sam to replace him! Sam Jones, host of the podcast Tiny Matters that is! Sam and her co-host, our own Deboki Chakravarti, join Ceri and Hank in our first ever team-based episode of Tangents! Two teams enter, one team leaves! 

    What more Tiny Matters? Check out the podcast here: https://www.acs.org/pressroom/tiny-matters.html! 

    And check out Deboki at https://twitter.com/okidoki_boki , and Sam at https://twitter.com/samjscience

    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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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 Express]

    Project Gasbuggy 

    https://www.nytimes.com/1970/02/22/archives/project-gasbuggy-and-catch85-thats-krypton85-one-of-the-radioactive.html

    https://content.time.com/time/subscriber/article/0,33009,899941,00.html

    https://books.google.com/books?id=g9QDAAAAMBAJ&dq=%22project+gasbuggy%22&pg=PA102#v=onepage&q=%22project%20gasbuggy%22&f=false

    Operation Big Itch

    https://www.tandfonline.com/doi/abs/10.1080/13623699908409460

    https://documents.theblackvault.com/documents/biological/bigitch.pdf

    Operation North Pole (Project Cirrus)

    https://www.ge.com/news/reports/cool-science-vonnegut-ge-research

    https://alachuacounty.us/Depts/epd/EPAC/General%20Electric%20History%20Of%20Project%20Cirrus%20July%201952%20ORIGINAL.pdf

    Brilliant Pebbles

    https://www.llnl.gov/archives/1980s/brilliant-pebbles

    https://solarsystem.nasa.gov/missions/clementine/in-depth/

    https://highfrontier.org/wp-content/uploads/2012/09/The-Rise-and-Fall-of-Brilliant-Pebbles-Baucom.pdf

    [Ask the Science Couch]

    Smallest organisms: ultramicrobacteria and Candidate Phyla Radiation

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9297842/

    https://link.springer.com/article/10.1134/S0026261712040054

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC243725/

    https://www.jstage.jst.go.jp/article/jsme2/16/2/16_2_67/_article

    https://www.nature.com/articles/ncomms7372

    https://newscenter.lbl.gov/2015/02/27/ultra-small-bacteria/  

    [Butt One More Thing]

    Big-bottomed ants (Atta laevigata / hormiga culona) 

    https://www.atlasobscura.com/foods/big-bottomed-ants-hormigas-culonas

    https://books.google.com/books?id=NebIEAAAQBAJ&pg=PT187&lpg=PT187

    https://www.fondazioneslowfood.com/en/ark-of-taste-slow-food/da-tradurreformica-culona/


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    49 min
  • Dust

    Head to factormeals.com/tangents50 and use code tangents50 to get 50% off! 
    ----------------------------- 
    Use promo code TANGENTS to get 50% off up to $10 value, when you spend $15 or more at convenience, grocery or retail stores on DoorDash. 

    The universe is dusty AF, frankly. It's on your body, in every nook in cranny of your house, some planets are just made entirely of dust pretty much, and space is full of it! It's everywhere, so I guess we might as well learn something about 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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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]

    Apollo 11 moon dust sample at auction

    https://www.bonhams.com/auction/27937/lot/21/a-unique-opportunity-to-own-a-nasa-verified-piece-of-the-apollo-11-contingency-sample-5-scanning-electron-microscope-sem-aluminum-sample-stubs-each-topped-with-approximately-10-mm-diameter-carbon-tape-containing-apollo-moon-dust/

    https://www.atlasobscura.com/articles/apollo-11-lunar-dust-auction

    [Fact Off]

    Spiderwebs collecting microplastic dust as sensors

    https://www.sciencedirect.com/science/article/abs/pii/S0048969722021015

    https://www.chemistryworld.com/news/spider-webs-record-severity-of-microplastic-pollution-in-cities/4015800.article

    https://phys.org/news/2022-06-microplastics-spider-webs.html

    https://edu.rsc.org/science-research/spiderwebs-used-as-microplastic-pollution-screens/4016071.article

    https://www.sciencealert.com/microplastics-are-so-pervasive-you-can-even-find-them-stuck-in-spider-webs

    Martian concrete made from dust, blood, and urea (also potato starch and salt)

    https://pubs.aip.org/physicstoday/article/76/3/62/2868070/Building-on-Mars-with-human-blood-and

    https://www.sciencedirect.com/science/article/pii/S2590006421000442

    https://ui.adsabs.harvard.edu/abs/2018EGUGA..20.4453Z/abstract

    https://www.eurekalert.org/news-releases/982978

    https://www.degruyter.com/document/doi/10.1515/eng-2022-0390/html

    [Ask the Science Couch]

    House dust mite allergens

    https://pubmed.ncbi.nlm.nih.gov/11845577/

    https://pubmed.ncbi.nlm.nih.gov/7464922/

    https://www.jacionline.org/article/0021-8707(67)90045-7/fulltext  

    https://link.springer.com/article/10.1007/s12016-018-8693-0

    [Butt One More Thing]

    Fecal dust air pollutant from cow and horse manure

    https://fee.org/articles/the-great-horse-manure-crisis-of-1894/

    https://99percentinvisible.org/article/cities-paved-dung-urban-design-great-horse-manure-crisis-1894/

    https://www.texasobserver.org/cafos-panhandle-tceq/


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    42 min
  • Blue

    From trustworthy to calming, sad to steadfast, and, of course, jeans - the color blue means a lot of things to a lot of people. Join Team Tangents as we delve into this deceptively complicated primary color!

    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! A big thank you to Patreon subscriber Garth Riley for helping to make the show possible!

    And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!

    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

    Sources:

    [Trivia Question]

    YInMn blue unnamed element 

    https://chemistry.oregonstate.edu/chemistry-news-events/yinmn-blue

    https://chemistry.oregonstate.edu/impact/2017/09/hello-bluetiful-theres-a-new-yinmn-blue-inspired-crayon

    https://www.smithsonianmag.com/smart-news/first-blue-pigment-discovered-200-years-finally-sale-180976769/

    https://www.nytimes.com/2021/02/05/style/blue-pigment-YInMn.html

    https://colourlex.com/project/yinmn-blue/

    [Fact Off]

    Blue dye blocking ATP for spinal cord injuries

    https://www.urmc.rochester.edu/news/story/blue-dye-may-hold-promise-in-treating-spinal-cord-injury

    https://www.wired.com/2009/07/bluerats/

    https://www.sciencenews.org/article/brilliant-blue-spine

    https://www.popsci.com/scitech/article/2009-07/good-news-animal-lovers-and-folks-spinal-injuries/

    Vivianite blue found on bones, shells, and other remains

    https://www.atlasobscura.com/articles/vivianite-blue-human-remains

    https://pubmed.ncbi.nlm.nih.gov/9871987/

    https://www.kristineballard.com/vivianite-blue/

    https://www.uaf.edu/museum/press/spotlight/blue-babe/

    https://www.sciencedirect.com/science/article/pii/S2352409X21001309

    https://onlinelibrary.wiley.com/doi/10.1002/(SICI)1096-8644(199809)107:1%3C1::AID-AJPA1%3E3.0.CO;2-R

    [Ask the Science Couch]

    Color psychology: blue and marketing/logos

    https://today.yougov.com/topics/international/articles-reports/2015/05/12/why-blue-worlds-favorite-color

    https://www.newyorker.com/magazine/2010/09/20/the-face-of-facebook

    https://www.joehallock.com/?page_id=1281

    https://link.springer.com/article/10.1007/s11747-010-0245-y

    https://www.jstor.org/stable/3151897

    https://www.emerald.com/insight/content/doi/10.1108/SJME-03-2018-005/full/html

    [Butt One More Thing]

    Evidence of blue cheese in Austrian paleofeces

    https://www.eurekalert.org/news-releases/930931

    https://www.cell.com/current-biology/fulltext/S0960-9822(21)01271-9

    https://www.theguardian.com/science/2021/oct/14/sophisticated-ancient-faeces-shows-humans-enjoyed-beer-and-blue-cheese-2700-years-ago#


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    44 min
  • Bacteria

    Take control of your finances today. Go to https://RocketMoney.com/TANGENTS to get started!

    It's easy to write off bacteria as no good, nasty, disease causing creeps, but consider this: without bacteria, we wouldn't have yogurt, or delicious sourdough bread, or a gut microbiome to digest those things! There are probably other good examples of ways bacteria are helpful to us, but I'm too hungry to think of them...

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    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!

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    While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen


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    45 min
  • Shells

    From eggs to tacos to Ninja Turtles, some of the best things in life come in shells. So cozy on up inside the nearest conch as we regale you with tales of shells from all across the scientific spectrum!

    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!

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    While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

    [Trivia Question]

    Golden ratio nautilus shells

    https://link.springer.com/article/10.1007/s00004-018-0419-3

    [Fact Off]

    Batteries made from crab shells 

    https://www.cell.com/matter/fulltext/S2590-2385(22)00414-3

    https://www.sciencedaily.com/releases/2022/09/220901135827.htm

    https://www.thedailybeast.com/the-future-of-renewable-energy-may-be-this-battery-made-from-crab-shells

    https://www.sciencedirect.com/topics/engineering/cycle-life

    https://www.acs.org/pressroom/presspacs/2023/march/crab-shells-could-help-power-the-next-generation-of-rechargeable-batteries.html

    Microplastics and hermit crab shells

    https://oceanographicmagazine.com/news/hermit-crab-behaviour-affected-by-microplastics/

    https://royalsocietypublishing.org/doi/10.1098/rsbl.2020.0030

    https://pubmed.ncbi.nlm.nih.gov/32343937/

    [Ask the Science Couch]

    Mollusk shell development & secretion into spiral shapes

    https://www.scientificamerican.com/article/how-seashells-take-shape/

    https://www.scientificamerican.com/article/how-are-seashells-created/

    https://link.springer.com/article/10.1007/s10126-005-6029-6

    https://www.pnas.org/doi/10.1073/pnas.0810311106

    https://www.pbs.org/newshour/science/how-a-snails-shell-gets-its-twist

    [Butt One More Thing]

    Wood-boring bivalve that creates fecal chimneys

    https://link.springer.com/article/10.1007/s12526-022-01306-z

    https://www.fieldmuseum.org/blog/down-and-dirty-most-unusual-bivalve


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    41 min

About SciShow Tangents

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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…

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