Oceans: they cover 70% of the planet, but what do we really know about them? Like what’s with all the salt, huh? And just what is the difference between a ‘sea’ and an ocean anyway?! I have questions!

This one has a real doozy of a Stefan poem. I cut out a lot of us interrupting him with raucous laughter!  

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

Boat cloak

https://www.newscientist.com/article/mg20227101-500-explorers-dont-forget-your-inflatable-cloak/?ignored=irrelevant

https://www.rmg.co.uk/discover/behind-the-scenes/blog/boat-cloak-or-cloak-boat

https://web.archive.org/web/20120425161825/http://resource.canadashistory.ca/media/pdf/34-4-Spr-955-p46-51.pdf

https://paperspast.natlib.govt.nz/newspapers/NENZC18511220.2.5

Image: https://upload.wikimedia.org/wikipedia/commons/5/50/Halkett_Boat_Cloak.jpg

Water chair

https://archive.org/details/watercurejournal12newy/page/1/mode/2up

Images: https://paleofuture.gizmodo.com/this-ridiculous-victorian-era-rocking-bath-wasnt-just-f-1515091109

Modesty barrel

https://www.messynessychic.com/2014/04/15/victorian-prudes-beachside-bathing-machines/

https://www.researchgate.net/figure/1715-Lethbridges-diving-barrel-John-Lethbridge-1678-1759-of-Newton-Abbot-Devon_fig2_228397874

https://io9.gizmodo.com/the-strange-and-wonderful-history-of-diving-suits-from-1262529336

https://devonassoc.org.uk/devoninfo/john-lethbridge-and-his-diving-machine-1880/

Image: https://i.kinja-img.com/gawker-media/image/upload/c_fit,f_auto,fl_progressive,q_80,w_470/18zb0i2fswtkxjpg.jpg

[Fact Off]

Pumice rafts

https://www.scientificamerican.com/article/dont-believe-the-hype-the-pumice-raft-wont-save-the-great-barrier-reef/

https://earthobservatory.nasa.gov/images/145490/a-raft-of-rockhttps://www.eurekalert.org/pub_releases/2017-05/dbnl-hxh052317.php

https://www.npr.org/2019/08/25/754190347/giant-pumice-raft-floating-towards-australia-could-help-replenish-great-barrier-

Albatross tracking system

https://www.washingtonpost.com/business/2020/01/31/albatross-marine-poaching/

https://www.smithsonianmag.com/science-nature/albatrosses-outfitted-with-gps-detect-illegal-fishing-vessels-180974054/

[Ask the Science Couch]

Salty ocean

https://oceanservice.noaa.gov/facts/whysalty.html

https://www.usgs.gov/special-topic/water-science-school/science/why-ocean-salty?qt-science_center_objects=0#qt-science_center_objects

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Things get a little weird this episode, and by ‘little’ I mean very little! 

One thing I learned in this episode is that everything in the universe is touching each other, yet the particles in your body never truly touch! Mama Mia! 

Well anyway, I hope you enjoy it! Thanks for listening!

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

https://history.fnal.gov/felicia.html#Time

https://history.fnal.gov/meson.html

pictures: https://www.atlasobscura.com/articles/felicia-ferret-particle-accelerator-fermilab

https://www.smithsonianmag.com/arts-culture/stocking-series-part-1-wartime-rationing-and-nylon-riots-25391066/

[Fact Off]

Surface plasmon resonance

https://www.nist.gov/news-events/news/2016/12/nist-device-detecting-subatomic-scale-motion-has-potential-robotics

https://www.nature.com/articles/ncomms13746

Dark matter supercold water

[Ask the Science Couch]

Do atoms touch?

https://www.sciencealert.com/99-9999999-of-your-body-is-empty-space

https://wtamu.edu/~cbaird/sq/2013/04/16/do-atoms-ever-actually-touch-each-other/

https://www.britannica.com/science/Pauli-exclusion-principle

http://hyperphysics.phy-astr.gsu.edu/hbase/pauli.html

https://www.britannica.com/science/fermion

https://www.pnas.org/content/114/23/5766

[Butt One More Thing]

Proton-powered poops

https://www.sciencedaily.com/releases/2008/01/080109104251.htm

https://www.sciencedirect.com/science/article/pii/S0092867407014791

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This Valentine’s Day, what could be better than cuddling up with someone special and listening to the Tangents Crew talk about various medical procedures in gory detail! Pucker up! 

They say the fastest way to a man’s heart is through his stomach, but I think if you ask a doctor they would probably say that’s wrong! But what do I know?

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

Dr. Clarence Walton Lillehei and Heart Surgery

https://medlineplus.gov/ency/article/002950.htm
https://www.healthline.com/health/open-heart-surgery#when-it's-needed
http://www.understandinganimalresearch.org.uk/why/human-health/history-of-the-heart-lung-machine/
https://www.texasheart.org/heart-health/heart-information-center/frequently-asked-patient-questions/how-is-the-heart-stopped-during-open-heart-surgery/
https://www.ahajournals.org/doi/full/10.1161/circ.102.suppl_4.IV-87

Cold Operating Room

https://www.jtcvs.org/article/S0022-5223(11)00421-1/pdf
https://www.annalsthoracicsurgery.org/article/0003-4975(89)90151-3/pdf

Patient-Donor Pump

https://www.annalsthoracicsurgery.org/article/S0003-4975(09)01080-7/pdf
https://www.ahajournals.org/doi/10.1161/01.CIR.100.13.1364
https://www.ahajournals.org/doi/full/10.1161/circ.102.suppl_4.IV-87
https://www.jtcvs.org/article/S0022-5223(04)00093-5/pdf
https://books.google.com/books?id=M5sbCxd5cioC

[Fact Off]

Chopin’s heart

https://www.nytimes.com/2017/11/06/arts/chopin-heart-tuberculosis.html

https://apnews.com/bc0f09217f564329ae6fa2aefa6349a6/chopins-heart-exhumed-secret-relic

https://www.livescience.com/60953-chopin-pickled-heart-reveals-cause-of-death.html

https://www.amjmed.com/article/S0002-9343(17)31025-2/abstract

https://www.amjmed.com/article/S0002-9343(17)31278-0/abstract

Heart catheterization

https://www.annalsthoracicsurgery.org/article/0003-4975(90)90272-8/pdf

https://onlinelibrary.wiley.com/doi/epdf/10.1002/clc.4960150715

https://www.nobelprize.org/prizes/medicine/1956/forssmann/facts/

https://www.mayoclinic.org/tests-procedures/cardiac-catheterization/about/pac-20384695

[Ask the Science Couch]

Non-human hearts (octopuses, earthworms, etc.)

https://www.sciencefocus.com/nature/why-does-an-octopus-have-more-than-one-heart/

https://www.sas.upenn.edu/~rlenet/Earthworms.html

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(05)60870-7/fulltext

Humans multiple hearts

https://www.bbc.com/future/article/20131122-can-humans-have-two-hearts

https://health.howstuffworks.com/human-body/systems/circulatory/two-lungs-one-heart1.htm

[Butt One More Thing]

Poo-phoria

https://www.huffingtonpost.co.uk/2014/02/18/poo-phoria-passing-a-stool_n_4808627.html

https://www.ncbi.nlm.nih.gov/pubmed/3778072

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Meat... seems pretty simple on the surface, but what do we really know about it? Like.. are living things made of meat? Or is meat only meat once it's being eaten? What was the first meat? What was the first thing to eat the first meat? Is eating prehistoric meat a good idea? Do we find the answer to any of these questions in this episode? I can't remember, frankly, but probably a few. 

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

Foal

https://www.smithsonianmag.com/smart-news/scientists-extracted-liquid-blood-42000-year-old-foal-found-siberian-permafrost-180971979/

Bison

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

https://historythings.com/aged-beef-delicacy-eating-meat-36000-year-old-bison/

https://www.atlasobscura.com/articles/ancient-bison-stew-blue-babe-alaska

Crocodile

https://www.smithsonianmag.com/smart-news/ancient-egyptians-hunted-then-mummified-crocodiles-180973197/

[Fact Off]

Carnivorous Herbivores

https://bioone.org/journals/Northwestern-Naturalist/volume-99/issue-3/NWN18-05.1/Scavenging-By-Snowshoe-Hares-iLepus-americanusi-In-Yukon-Canada/10.1898/NWN18-05.1.short

https://www.smithsonianmag.com/smart-news/when-herbivores-arent-poor-chicken-got-eaten-cow-180951115/

https://bioone.org/journals/Northwestern-Naturalist/volume-99/issue-3/NWN18-05.1/Scavenging-By-Snowshoe-Hares-iLepus-americanusi-In-Yukon-Canada/10.1898/NWN18-05.1.short

https://www.outdoornews.com/2015/03/19/who-knew-tape-shows-deer-raiding-birds-nests/

Dyeing Salmon

https://www.adfg.alaska.gov/index.cfm?adfg=wildlifenews.view_article&articles_id=738

https://nextnature.net/2012/06/dyeing-salmon-pink-for-farms-and-profit

https://www.seattlepi.com/news/article/The-salmon-struggle-A-fish-by-any-other-color-is-1115339.php

[Ask the Science Couch]

Gamey meat

https://www.sciencedirect.com/science/article/abs/pii/S0309174015301376

https://extension.umn.edu/preserving-and-preparing/cooking-venison-flavor-and-safety

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6154429/

https://bastyr.edu/news/general-news-health-tips-spotlight-1/2015/08/why-choose-grass-fed-meat

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.361.2312&rep=rep1&type=pdf

[Butt One More Thing]

Pork butt

https://www.southernliving.com/bbq/why-is-it-called-boston-butt

https://www.mentalfloss.com/article/22382/how-9-cuts-meat-got-their-names

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So look, Stefan sings a song in this episode, so I’m not sure what more you need. He looked cool as heck when he was doing it and I was really proud of him!

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

Music & Creativity

https://www.eurekalert.org/pub_releases/2019-02/lu-hlt022619.php

Inspirational Music & Sports performance

https://www.eurekalert.org/pub_releases/2018-01/f-mmi012918.php

Music & Driving

https://www.eurekalert.org/pub_releases/2013-08/aabu-tdm082213.php

https://pdfs.semanticscholar.org/e5b0/98e4ef211279d26a14d7502a80232a90dc2d.pdf

[Fact Off]

Nanoguitar 

Telharmonium

http://synthmuseum.com/magazine/0102jw.html

https://ocw.mit.edu/courses/music-and-theater-arts/21m-380-music-and-technology-contemporary-history-and-aesthetics-fall-2009/lecture-notes-and-videos/MIT21M_380F09_lec11.pdf

http://120years.net/the-telharmonium-thaddeus-cahill-usa-1897/

http://www.csun.edu/~dwh50750/Classes/MUS191/Emusic_readings/ECenturyPartI.html

Scientific american article: https://upload.wikimedia.org/wikipedia/commons/0/0c/Telharmonium_-_Scientific_American_1907.png

[Ask the Science Couch]

Timbre

http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/timbre.html

https://cecm.indiana.edu/etext/acoustics/chapter1_timbre.shtml

https://ocw.mit.edu/courses/health-sciences-and-technology/hst-725-music-perception-and-cognition-spring-2009/lecture-notes/MITHST_725S09_lec07_timbre.pdf

Beetlejuice

https://twitter.com/VoiceSLPChris/status/1111285302352625665/video/1

[Butt One More Thing]

Brown note

https://books.google.co.uk/books?id=khzDRYfj97AC&pg=PA932&lpg=PA932&dq=the+collophone+commemorated&source=bl&ots=vrgUH_MUh4&sig=Z2nnGZJ6W3_Ph_gzXKuhXCbLfW0&hl=en&sa=X&ved=0ahUKEwie2pKZw7_QAhWsJcAKHdIlCYEQ6AEIGzAA#v=onepage&q&f=false

https://www.vice.com/en_us/article/ppv35z/in-search-of-the-brown-noise

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From diet, to shoes, to movement efficiency, people devote their lives to researching and perfecting the art of running. Meanwhile, cheetahs run 75 mph and they sleep all day. No fair!

Ceri caught a plane to run a marathon right after we recorded this! I probably went home and watched TV for four hours. Oh well!

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out SciShowTangents.org!

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Wise men have long pondered how magnets work. We all know the answer is “magic,” but Ceri and Hank have to keep up the illusion that science is real, so please humor them.

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: Stefan: @itsmestefanchin Ceri: @ceriley Sam: @slamschultz Hank: @hankgreen

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

Magnet Therapy

https://www.livescience.com/40174-magnetic-therapy.html

God Machine

http://www.bbc.co.uk/science/horizon/2003/godonbrain.shtml

https://science.howstuffworks.com/life/inside-the-mind/human-brain/brain-religion2.htm

https://www.psypost.org/2018/01/fake-god-helmet-can-elicit-extraordinary-experiences-especially-among-spiritual-people-50619

https://www.tandfonline.com/doi/full/10.1080/2153599X.2017.1403952

https://mysteriousuniverse.org/2018/01/test-of-god-helmet-at-music-fest-yields-strange-results/

Electro-Metabograph

https://books.google.com/books?id=CeMDAAAAMBAJ&pg=PA218&lpg=PA218&dq=Electro-metabograph+machine&source=bl&ots=JjXhceV_VG&sig=ACfU3U3mlpAO1DmRW9B8ef9cSK12nuCRew&hl=en&sa=X&ved=2ahUKEwjs2dOe6b_mAhXSHjQIHZPICLMQ6AEwEHoECAoQAQ#v=onepage&q=Electro-metabograph%20machine&f=false

Radium Ore Revigator

https://www.nationalgeographic.com/news/2010/1/100118-radiation-toxic-water-revigator/

[Fact Off]

Airport runways/WMM

https://www.wired.com/story/airports-rename-runways-magnetic-shift/

https://www.ncei.noaa.gov/news/airport-runway-names-shift-magnetic-field

https://cires.colorado.edu/news/airport-runway-names-shift-earth%E2%80%99s-magnetic-field

https://flightsafety.org/wp-content/uploads/2016/12/asw_may08_p18-22.pdf

https://www.ngdc.noaa.gov/geomag/GeomagneticPoles.shtml

https://www.ncei.noaa.gov/news/world-magnetic-model-2020-released

Ferrofluids

http://aerospace.mtu.edu/research/ionic-liquid-ferrofluid-microthrusters/

https://www.sciencedirect.com/topics/chemistry/ferrofluid

https://aip.scitation.org/doi/10.1063/1.4985141

[Ask the Science Couch]

Demagnetizing

https://www.wired.com/story/the-physics-of-falling-magnets-in-stranger-things-season-3/

https://nationalmaglab.org/education/magnet-academy/plan-a-lesson/demagnetizing

http://www.magmamagnets.com/electromagnets-solenoids/

https://physics.stackexchange.com/questions/150570/what-is-the-difference-between-electromagnet-and-solenoid

[Butt One More Thing]

Magnetic anal sphincter

https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-first-to-implant-device-to-solve-fecal-incontinence/

https://www.ncbi.nlm.nih.gov/pubmed/27926562

https://www.ncbi.nlm.nih.gov/pubmed/21654242

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Listening to Tangents is like making an investment with your brain. And the dividend? Knowledge. Invest today, won't you?

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: Stefan- @itsmestefanchin Ceri- @ceriley Sam- @slamschultz Hank- @hankgreen

If you want to learn more about any of our main topics, check out this episode's page at SciShowTangents.org!

[Truth or Fail]

Supernotes

https://www.nytimes.com/2006/07/23/magazine/23counterfeit.html

https://www.uscurrency.gov/history

Counterfeit $1 bills

https://www.nydailynews.com/news/crime/finding-mr-880-case-1-counterfeit-article-1.109016

https://www.nysun.com/on-the-town/little-old-moneymaker/9282/

pictures: https://thehustle.co/worst-counterfeiter-in-history-mr-880/

https://www.secretservice.gov/about/history/events/

Costume jewelry scam

https://books.google.com/books?id=ELgiAAAAMAAJ&pg=PA85&lpg=PA85

https://o.canada.com/technology/nigerian-email-scams-royally-obvious-for-good-reason-study-says-3

[Fact Off]

Xerox machine anti-counterfeiting

Yap stone money

https://anthrosource.onlinelibrary.wiley.com/doi/epdf/10.1002/sea2.12154?referrer_access_token=PoYDhuZQ2I3K6rW0TZp1r04keas67K9QMdWULTWMo8PSbwnv52oah6avTUlc6Ncg2Fsq-XbfQibDgqrz1_Z5GxRdKzRhmEzfI08Tv5kPNn5935yywdPadRZC0bxzVlqKx6dktyKOLwawQhLnG1PcSg%3D%3D

https://www.sciencealert.com/the-original-bitcoin-still-exists-as-giant-stone-money-on-a-tiny-pacific-island

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0012186

[Ask the Science Couch]

Plastic vs. paper bills

https://www.banknoteworld.com/blog/the-pros-and-cons-of-polymer-banknotes/

https://www.euronews.com/2018/05/16/polymer-vs-paper-banknotes-which-one-is-better-for-environment-

https://www.forbes.com/sites/davekeating/2019/08/21/englands-new-currency-is-harming-the-climate-report/#543d2d76524f

https://www.moneyboat.co.uk/blog/paper-vs-polymer/

https://www.bankofengland.co.uk/-/media/boe/files/banknotes/polymer/lca-of-paper-and-polymer-bank-notes.pdf?la=en&hash=7D3845CE11AD21F300CFA023F8FCF4AA37FB73CC

Composting or washing U.S. money

https://www.cnet.com/news/cash-to-trash-watch-millions-of-dollars-turn-into-compost/

https://www.acs.org/content/acs/en/pressroom/presspacs/2014/acs-presspac-january-8-2014/laundering-money-literally-could-save-billions-of-dollars.html

[Butt One More Thing]

Penny swallowing

https://www.chicagotribune.com/news/ct-xpm-1998-12-01-9812010102-story.html

https://www.sciencedaily.com/releases/1998/12/981201033841.htm

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SciShow Tangents’ exploration of the electromagnetic spectrum continues with good old, dependable light! What is it? Where does it come from? Only Ceri knows (sort of)!

Also, happy New Year to all of our amazing listeners! Thank you for your support over the last year, and here's to another year of laughing and learning with all of you!

Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! 

If you want to learn more about any of our main topics, check out this episode's page at SciShowTangents.org!

[Truth or Fail]

E. coli

https://arxiv.org/abs/1104.3113

https://phys.org/news/2014-04-bacterial-fm-radio.html

Cactus Radio

https://www.youtube.com/watch?v=I1shcxHWQas

Frequency Comb

https://www.pnas.org/content/116/19/9181

https://www.laserfocusworld.com/lasers-sources/article/14035201/frequency-combs-trick-a-laser-into-producingreceiving-an-rf-signal

[Fact Off]

Battle of the Beams

https://www.bbc.co.uk/history/ww2peopleswar/stories/63/a3714563.shtml

https://www.nytimes.com/1997/12/19/us/r-v-jones-science-trickster-who-foiled-nazis-dies-at-86.html

http://vc.airvectors.net/ttwiz_07.html

RV Jones Obituary

W5LFL

https://amsat-uk.org/2013/01/19/amateur-radio-on-bbc-between-the-ears-space-ham/#more-12135

https://www.amsat.org/owen-k-garriott-w5lfl/

[Ask the Science Couch]

Analog radio

https://public.wsu.edu/~bryan.mclaughlin/Radio/Who_Invented_Radio.html

https://www.pbs.org/wgbh/aso/tryit/radio/radiorelayer.html

https://www.reddit.com/r/explainlikeimfive/comments/4suas5/eli5_why_is_the_sound_quality_of_am_radio_so_much/

Digital/HD radio

https://www.fcc.gov/consumers/guides/digital-radio

https://electronics.howstuffworks.com/hd-radio.htm

https://hdradio.com/trademark/

https://www.cnet.com/news/digital-radio-all-you-need-to-know/

[Butt One More Thing]

Pigeon poop / cosmic microwave background

https://www.smithsonianmag.com/smithsonian-institution/how-scientists-confirmed-big-bang-theory-owe-it-all-to-a-pigeon-trap-180949741/

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Humans have wielded the power of radio waves for more than a century, but what exactly are they and how do we use them to transmit information? It turns out, even geniuses like Hank and Ceri have a hard time explaining that!

Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! 

If you want to learn more about any of our main topics, check out these links:

[Truth or Fail]

EROS

https://www.ncbi.nlm.nih.gov/pubmed/25788334

MOZE

https://www.nature.com/articles/s41593-019-0389-0

FReSH

http://www.nature.com/nature/journal/vaop/ncurrent/full/nature10428.html

[Fact Off]

Eidophor

https://www.earlytelevision.org/eidophor.html

https://hackaday.com/2016/03/15/retrotechtacular-eidophor-an-unknown-widely-used-projector/

http://www.film-tech.com/ubb/f1/t004319.html

http://www.earlytelevision.org/yanczer_eidophor.html

Centennial light

http://www.centennialbulb.org/index.htm

https://www.mentalfloss.com/article/66009/light-bulb-has-been-burning-1901

https://www.lampsplus.com/ideas-and-advice/how-an-incandescent-light-bulb-works/

https://spectrum.ieee.org/tech-history/dawn-of-electronics/the-great-lightbulb-conspiracy

https://www.npr.org/2019/03/27/707188193/the-phoebus-cartel

[Ask the Science Couch]

Brightest artificial light

https://www.wired.co.uk/article/brightest-light-ever-computer-chips

https://www.nature.com/articles/nphoton.2017.100

https://www.unl.edu/diocles/home

https://www.labmanager.com/research-specific-labs/2017/11/home-of-the-world-s-brightest-laser-looks-to-bring-high-quality-x-rays-to-research-medical-applications#.Xe_nrZNKhnN

[Butt One More Thing]

Firefly butt vs. LED

https://www.sciencedirect.com/science/article/pii/S0030402619300452?via%3Dihub

https://www.futurity.org/light-bulbs-leds-fireflies-1988062/

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