SciShow Tangents is the lightly competitive knowledge showcase from the geniuses behind the YouTube series SciShow. Every other Tuesday, join Hank Green, Ceri R...
Is a dream really a wish your heart makes? Or is it just that your brain is an organ that never really turns off? What do your dreams even mean??? These are just some of the perplexing questions this episode posed to us and our special return guest, Trace Dominguez!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[Definition]https://pmc.ncbi.nlm.nih.gov/articles/PMC2814941/https://www.scientificamerican.com/article/how-to-control-dreams/  [The Scientific Definition]Dreambookshttps://www.cabinetmagazine.org/issues/67/vandegrift.php#:~:text=Popular%20in%20Europe%20since%20antiquity,game%20then%20sweeping%20Northeastern%20cities.https://web.archive.org/web/20151222092158/http://www.eastm.org/index.php/journal/article/viewFile/146/134https://www.obafemio.com/uploads/5/1/4/2/5142021/dream_interpretation_in_ancient_china.pdfIncubationhttps://publishing.cdlib.org/ucpressebooks/view?docId=ft5j49p06s&chunk.id=d0e2624&toc.id=&brand=ucpress#:~:text=Common%20throughout%20all%20antiquity%2C%20the,some%20divinely%20inspired%20dream%20vision.https://www.britannica.com/topic/dream-sleep-experience/Dreams-as-a-source-of-divination#ref984709https://www.dreamscience.ca/en/documents/New%20content/incubation/Incubation%20overview%20for%20website%20updated.pdfOminous-Vapor Watcherhttps://www.obafemio.com/uploads/5/1/4/2/5142021/dream_interpretation_in_ancient_china.pdfhttps://www.britannica.com/topic/Zhouli[Trivia Question]Rapid eye movement (REM) saccade speedhttps://www.sciencedirect.com/science/article/abs/pii/B9780080450469010895https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8986.1985.tb01551.xhttps://onlinelibrary.wiley.com/doi/abs/10.1111/j.1469-8986.1983.tb03008.xhttps://pubmed.ncbi.nlm.nih.gov/9406327/[Fact Off]Approximating dreams with generative AIhttps://www.sciencefocus.com/the-human-body/heres-how-ai-could-soon-decode-your-dreamsLucid dreaming and the effects of video games on dreamshttps://academic.oup.com/nc/article/2017/1/nix009/3859602https://theconversation.com/im-a-lucid-dream-researcher-heres-how-to-train-your-brain-to-do-it-118901https://psycnet.apa.org/record/2014-00817-001https://psycnet.apa.org/doiLanding?doi=10.1037%2F1053-0797.16.2.96https://psycnet.apa.org/record/2014-00817-001https://psycnet.apa.org/record/2008-19013-002https://www.theverge.com/2014/1/21/5330636/video-games-effect-on-dreams[Ask the Science Couch]Neuroscience of fever dreams https://pmc.ncbi.nlm.nih.gov/articles/PMC3830719/https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/28492https://pmc.ncbi.nlm.nih.gov/articles/PMC6997236/https://www.sciencedirect.com/science/article/pii/S0033318268718077?via%3Dihubhttps://www.accjournal.org/journal/view.php?number=1528 Patreon bonus: Recurring dream content and possible psychologyhttps://psycnet.apa.org/record/2010-23497-001https://www.researchgate.net/profile/Antonio-Zadra/publication/232509978_Recurrent_dreams_Their_relation_to_life_events/links/53d673f10cf220632f3da1f7/Recurrent-dreams-Their-relation-to-life-events.pdf  https://www.sciencedirect.com/science/article/pii/S1053810005000772?casa_token=Dofy4I_w2PsAAAAA:DdZ6qAtKJiS6OEE3Iu8pETHldBs5n1SH3lvSQl6WuCNVv9Xi8v09wuR9bWki5YROcyKWXAZ3CcN3https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2018.01812/fullhttps://psychiatryonline.org/doi/10.1176/ajp.134.12.1335[Butt One More Thing]Psychoanalyst Hans Thorner documenting a patient who dreamed of butt spidershttps://bgsp.edu/app/uploads/2014/12/Blechner-M-Patients-dreams-and-the-countertransference.pdfhttps://www.taylorfrancis.com/chapters/edit/10.4324/9780429477546-12/three-defences-inner-persecution-hans-thorner
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53:29
Camouflage
Now you see it, now you don't - this episode is a true trick for the senses as we uncover the hidden wonders of Camouflage! From human ingenuity (?) to animal creativity, misdirection and subterfuge abound in this episode, so keep your eyes peeled, it's not one you'll want to miss!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[This, That, or the Other: Disappearing Acts]Stripes painted on ships and planesPainting planes pinkYehudi lights on planeshttps://www.cnrs-scrn.org/northern_mariner/vol19/tnm_19_171-192.pdfhttps://pmc.ncbi.nlm.nih.gov/articles/PMC1634902/https://www.penguinrandomhouse.com/books/552503/the-secret-lives-of-color-by-kassia-st-clair/https://books.google.com/books?id=heS0lbYrpAwC&pg=PA56&dq=yehudi+lights&hl=en&sa=X&ved=2ahUKEwjHg8TLg6KJAxX5DkQIHUDFHHcQ6AF6BAgJEAI#v=onepage&q=yehudi%20lights&f=falsehttps://books.google.com/books?id=DUkl5bH6k6EC&pg=PA62#v=onepage&q&f=falsehttps://www.sciencedirect.com/science/article/pii/S0042698902002675#:~:text=In%20the%20Purkinje%20shift%2C%20the,versus%20red%20into%20apparent%20motion.[Trivia Question]Color combinations of Bargibant's pygmy seahorseshttps://www.fishbase.se/summary/Hippocampus-bargibantihttps://oceana.org/marine-life/pygmy-seahorse/https://owlcation.com/stem/Camouflage-in-Animals-Pygmy-Seahorses[Fact Off]Trashline orb-weaver spiders that build self-portraits for camouflage https://web.archive.org/web/20160829062900/http://blog.perunature.com:80/2012/12/new-species-of-decoy-spider-likely.htmlhttps://phys.org/news/2012-12-species-spider-fake-decoys.htmlhttps://mdc.mo.gov/discover-nature/field-guide/trashline-orbweavershttps://academic.oup.com/beheco/article-abstract/10/4/372/2252323Picture examples of stabilimenta: https://en.wikipedia.org/wiki/StabilimentumTricking mice with scent camouflage by adding too much wheat smellhttps://www.science.org/doi/10.1126/sciadv.abe4164https://www.nature.com/articles/s41893-023-01127-3https://www.sciencenews.org/article/camouflaging-wheat-smell-pest-control[Ask the Science Couch]Color-changing biology in invertebrates like octopuses vs. vertebrates like chameleonshttps://pmc.ncbi.nlm.nih.gov/articles/PMC5804272/https://www.nature.com/articles/ncomms7368https://link.springer.com/article/10.1039/c0pp00199fhttps://ocean.si.edu/ocean-life/invertebrates/how-octopuses-and-squids-change-colorhttps://pmc.ncbi.nlm.nih.gov/articles/PMC2936158/Patreon bonus: Non-visual-spectrum camouflage or other senses https://www.science.org/doi/10.1126/science.860137https://royalsocietypublishing.org/doi/10.1098/rstb.2008.0228https://link.springer.com/article/10.1007/s00049-004-0274-4https://royalsocietypublishing.org/doi/10.1098/rsif.2019.0183[Butt One More Thing]Caterpillars, spiders, and moths that camouflage themselves as bird poophttps://entnemdept.ufl.edu/creatures/citrus/giantswallowtail.htmhttps://nhpbs.org/natureworks/viceroy.htmhttps://www.newscientist.com/article/dn28124-zoologger-a-spider-that-looks-and-smells-like-bird-droppings/https://australian.museum/learn/animals/spiders/bird-dropping-spider/https://boingboing.net/2019/11/14/macrocilix-maia-a-moth-that-e.html
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50:49
Stomachs
From one to four to none at all, stomachs enjoy a stunning variety across all the creatures who have (or don't have) them. And with our stomachs all happily full of spooky month treats, we thought it was the perfect time to learn all about this weird, wobbly, wonderful organ.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[This, That, or the Other: Stomachs ROCK]Bird with over 1% of their total body weight of gastrolithsAquatic animal helps control buoyancy by swallowing silt Animal eats its exoskeleton that stores calcium in stomachhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8342792/#bib0037https://www.researchgate.net/publication/6549149_No_gastric_mill_in_sauropod_dinosaurs_New_evidence_from_analysis_of_gastrolith_mass_and_function_in_ostricheshttps://bonndoc.ulb.uni-bonn.de/xmlui/handle/20.500.11811/2110https://www.jstor.org/stable/4098635https://pubmed.ncbi.nlm.nih.gov/26818557/[Trivia Question]Mammal species without stomachshttps://www.livescience.com/41661-why-platypus-wont-regain-stomach.htmlhttps://royalsocietypublishing.org/doi/10.1098/rspb.2013.2669https://www.nationalgeographic.com/science/article/how-the-platypus-and-a-quarter-of-fishes-lost-their-stomachshttps://www.ucl.ac.uk/museums-static/obl4he/vertebratediversity/monotremes.htmlhttps://m.youtube.com/watch?v=A5Rzx7yeh7c[Fact Off]Ghost crabs use their stomach teeth (gastric mills) to growlhttps://royalsocietypublishing.org/doi/10.1098/rspb.2019.1161https://www.science.org/content/article/listen-ghost-crab-frighten-away-enemies-its-stomach-rumbleshttps://www.theguardian.com/science/2019/sep/11/ghost-crabs-use-teeth-in-stomachs-to-growl-at-predatorsSomeone ate a shrew to study what human digestion does to rodent bones [Ask the Science Couch]Borborygmus and the biology of stomach rumbles  https://www.scientificamerican.com/article/why-does-your-stomach-gro/https://www.etymonline.com/word/borborygmushttps://www.nature.com/articles/nrgastro.2012.57https://journals.physiology.org/doi/full/10.1152/ajpgi.00212.2015Patreon bonus: Stomach and brain communication for hunger/satiety (or other things) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174087/https://www.ncbi.nlm.nih.gov/books/NBK555906/https://journals.physiology.org/doi/full/10.1152/ajpgi.00448.2003https://www.livescience.com/health/food-diet/does-it-really-take-20-minutes-to-realize-youre-fullhttps://www.journals.uchicago.edu/doi/full/10.1086/693111[Butt One More Thing]Florida carpenter ants swallow their own formic acid to help protect their stomachshttps://elifesciences.org/articles/60287https://www.eurekalert.org/news-releases/491275
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49:41
Spooky Month: Nocturnal Animals with Tom Lum!
There's a chill in the air and a shudder in our bones...it's Spooky Month! Come along with us on a treacherous journey full of mischief, mayhem, and many marvelously mysterious guests! Steady yourself, for who knows what frights lurk around the corner...Alas, our frightful fiends and friends, Spooky Month has nearly run its course - but not until we go out with a bang with our final ghoulish guest, Tom Lum! Join as we dare to tread amongst the creatures who belong to the night...nocturnal animals!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, That, or the Other: Boys’ Night Out]Male animals float and call out to femaleshttps://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Pseudis_paradoxa%20-%20Paradoxical%20Frog.pdfAnimals in ritualistic sparring matches for several hourshttps://echidnawalkabout.com.au/how-kangaroos-fight/Patrolling perimeter and building up poop pileshttps://www.britannica.com/animal/kiwi-birdhttps://www.livescience.com/57813-kiwi-facts.html[Truth or Fail Express]Hedgehogs inflate like a balloonhttps://www.bbc.com/news/uk-england-gloucestershire-68833432https://www.livescience.com/59994-balloon-syndrome-hedgehog.htmlBandicoots spin to defend themselves https://crashbandicoot.fandom.com/wiki/Spinhttps://www2.environment.nsw.gov.au/topics/animals-and-plants/native-animals/native-animal-facts/land-mammals/bandicootsTasmanian devils are soothed by musichttps://en.wikipedia.org/wiki/Ducking_the_Devilhttps://animals.sandiegozoo.org/animals/tasmanian-devilhttps://www.australiangeographic.com.au/topics/wildlife/2017/08/native-animals-should-be-renamed-with-their-aboriginal-names/Pygmy tarsiers / gremlins rotating their headshttps://www.wired.com/2015/01/absurd-creature-of-the-week-tarsier/https://primate.wisc.edu/primate-info-net/pin-factsheets/pin-factsheet-tarsier/[Ask the Science Couch]Vitamin D chemistry and nocturnal animalshttps://www.ncbi.nlm.nih.gov/books/NBK56061/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538717/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761812/https://pubmed.ncbi.nlm.nih.gov/12899852/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2095.2009.00722.xhttps://www.mdpi.com/2571-841X/3/1/1 Patreon bonus: Teenage humans sleeping habits shifted towards nighthttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820578/https://www.tandfonline.com/doi/epdf/10.1080/07420528.2023.2265480https://med.stanford.edu/news/all-news/2015/10/among-teens-sleep-deprivation-an-epidemic.htmlhttps://publications.aap.org/pediatrics/article/134/3/642/74175/School-Start-Times-for-Adolescentshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6084759/[Butt One More Thing]Bats with false butts (but some sort of muscle)https://www.instagram.com/batworldsanctuary/p/DAbKf45RDjW/https://commons.wikimedia.org/wiki/File:Mexican_free-tailed_bat_(8006850693).jpg
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49:40
Spooky Month: Psychics with Dylan Marron!
There's a chill in the air and a shudder in our bones...it's Spooky Month! Come along with us on a treacherous journey full of mischief, mayhem, and many marvelously mysterious guests! Steady yourself, for who knows what frights lurk around the corner...Our next shocking mystery friend to join us is none other than Dylan Marron! Tread the floorboards of Tangents Manor with us in pursuit of the truth behind fortune-telling and future-predicting as we examine Psychics! 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, That, or the Other: Crystal Ball]Weather forecast predictionshttps://www.noaa.gov/stories/6-tools-our-meteorologists-use-to-forecast-weatherhttps://www.scientificamerican.com/article/can-you-trust-farmers-almanacs-weather-predictions/Flu shot planninghttps://www.cdc.gov/flu/prevent/vaccine-selection.htmShort-term volcanic eruption predictionhttps://volcano.si.edu/faq/index.cfm?question=eruptionforecasthttps://nap.nationalacademies.org/read/24650/chapter/6[The Scientific Definition]Spirit trumpethttps://cudl.lib.cam.ac.uk/view/MS-SPR-TRUMPET/1https://www.atlasobscura.com/articles/spirit-trumpets-dead-speakhttps://www.smithsonianmag.com/history/for-harry-houdini-seances-and-spiritualism-were-just-an-illusion-180978944/The Barnum effecthttp://apsychoserver.psych.arizona.edu/JJBAReprints/PSYC621/Forer_The%20fallacy%20of%20personal%20validation_1949.pdfhttps://www.oxfordreference.com/display/10.1093/oi/authority.20110810104425651https://bpspsychub.onlinelibrary.wiley.com/doi/abs/10.1111/j.2044-8260.1978.tb00271.xhttps://psycnet.apa.org/record/1977-21271-001Table-turninghttps://fisherdigitus.library.utoronto.ca/exhibits/show/psychical-research-collection/tabletalkingandtableturning/tabletalkingandtableturningboohttps://link.springer.com/chapter/10.1007/978-3-031-52954-2_6https://www.ria.ie/blog/table-turning-a-victorian-fad/[Ask the Science Couch]Neuroscience or psychology explanations for deja vu https://link.springer.com/article/10.1007/s00415-005-0677-3https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4251874/https://www.sciencedirect.com/science/article/abs/pii/S1053810012000049https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3420423/https://www.psychologicalscience.org/news/releases/the-psychology-of-deja-vu.htmlhttps://www.sciencefocus.com/the-human-body/deja-vuPatreon bonus: Brain-computer interfaces and using technology to detect thoughtshttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3497935/https://www.theverge.com/2015/5/21/8639905/brain-control-robot-arm-paralyzed-quadriplegichttps://www.science.org/doi/10.1126/science.aaa5417https://www.vox.com/future-perfect/2023/5/4/23708162/neurotechnology-mind-reading-brain-neuralink-brain-computer-interfacehttps://www.nature.com/articles/s41593-023-01304-9[Butt One More Thing]Scatomancy pseudoscience vs. fecal tests run by gastroenterologistshttps://www.huffpost.com/entry/scatomancer_n_4309974https://medlineplus.gov/ency/patientinstructions/000704.htmhttps://www.columbiadoctors.org/news/how-know-your-colon-healthy
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.
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