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Let's Learn Everything!

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Let's Learn Everything!
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131 episodes

  • Let's Learn Everything!

    102: The Vitamin Saga & The Evolution of Fairies

    26/03/2026 | 1h 55 mins.
    Why are there so many vitamins, what even IS a vitamin?? Well Tom finally understands, and takes us on a tour through their infuriating past. And how did the cheerful fairy we know and love today, evolve into its current form? Well we'll only tell if you can answer our riddles three and- or you can just listen to the episode.

    Things we Talk About:
    James Lind Scurvy Painting
    The Various Vitamin Bs
    Vitamin Map
    Brownie
    First Fairy Image
    Cicely Mary Barker Fairies
    Cottingley Fairies 1
    Cottingley Fairies 2
    Illusion Spinners
    Bitterbloom Bearer

    Timestamps:

    (00:00:00) Intro

    (00:03:05) The Vitamin Saga

    (00:57:54) The Evolution of Fairies

    (01:48:20) Outro

    Support us with a Max Fun Membership!

    Join our Discord!

    We also learn about: Will vitamin c cure me or murder me? more people died of scurvy than combat on the seas, Lind’s biblical scurvy experiment painting, vitamin Pee, maybe oranges are the fifth humor, beri beri, the gelatin comission, come onnn man it’s the 1800s give me a break, we know proteins carbs fats and minerals but something’s missing, STUDY MINERALS THEY SAID - YOU’LL WIN A NOBEL PRIZE THEY SAID, vital amines but they’re not amines, wait are vitamins like fish?? drop the e just vitamin, *mymymymy* all the vitamins are completely different?, some vitamins only exist for a few picoseconds in a supercollider, a bunch of vitamins got pluto’d, Vitamins are like a title, vitamer, VITAMIN D IS A HORMONE, wait maybe hormones are vitamins too, we haven’t talked about how vitamins work because they do Too Many Things, “we’re trying our best but sometimes our best isn’t good enough”, lifting the shadow of death, fitnessgirl250 actually has a PhD, food science is an applied science, the LLE supplement has all the dropped vitamins, vitamins are perfect for capitalism, there is not silver bullet, you can’t supplement your way into a healthy life, an appearance from she/her Caroline, the rainbow magic fairy books, we support evil fairies, the fickle house brownies, realizing fairytales are fairy tales, both high and low class could blame fairies, dressing boys as girls to protect them from the fae, booktok loves hot Rumpelstiltskin, American leprechaun traps, fae - fatah - the fates, when did fairies evolve wings, distinguishing from angels through insectification, fairies may have shrunk to be less threatening, Tom doesn’t know what a panto is, Victorians established the modern fairy, fairies went from robbing cribs to being trapped in the nursery, Cicely Mary Barker’s flower fairies, the collectability of fairies, 350 fairy books in 5 years, the Cottingley fairy hoax, fairies went from being about protecting sons to empowering girls, spelling fairy or faerie, Evyn Fong’s insectoid fairies, the review corner riddle, weaponizing review corner to talk to us.

    Semba: The Discover of the Vitamins
    Royal Museums Greenwich: Scurvey
    Science History Institute: Scurvey
    Beriberi Review through Chinese Medical Literature
    Drummond's Naming of Vitamins
    Nobel Laureats in the History of Vitamins
    Semba: On the Discovery of Vitamin A
    SciAm: What Vitamins Really Do

    ---

    It seem a mischievous fairy has stolen the fairy sources... I'll return them soon!
  • Let's Learn Everything!

    101: Why is the Sky Blue & Speech Disfluency

    12/03/2026 | 1h 46 mins.
    It's LLE 101, and to celebrate new learners we're trying a technically family friendly episode! Why is the sky blue? Well it took some pretty advance science to figure that out! And why is speech disfluency? Well, um... you'll have to see!

    Images we Talk About:
    Green Flash
    Martian Sunset

    Timestamps:

    (00:00:00) Intro

    (00:06:43) Why is the Sky Blue

    (00:54:29) Parable Mythbusters

    (01:40:45) Outro

    Support us with a Max Fun Membership!

    Join our Discord!

    We also learn about:

    It’s like playing Mozart for children, mystery spires, atmospheric optics is responsible for all the bangers, they didn’t have a word for blue but they could perceive it, Davinci and Newton were on the right track, and thus the liberal lie of the greenhouse effect was born, tyndell was just trying to clean an air sample and saw it turn blue, Baron’s used to be useful at least, Tom’s mind gets rocked by rayleigh scattering, why isn’t the sky purple, When was the sky blue? the great oxidation event, sky is atmosphere, why is the sun so tiny OH ITS FAR AWAY, Ella pulled a Tom at the intro, Ella’s filler montage, no swearing no fillers challenge, there’s no fillers in the speech we watch on TV and movies, we actually um-dope our podcast in post, people used filler words in the past too, it’s found in poems and the earliest recorded sounds, the valley girl like, natural language corpuses, the 2 genders are uh and um, fillers in other languages, parasite words, uh is almost universal, the function of filler, back channeling, measuring um reaction times, a visit from Gretchen, um is like a swiss army knife, like as quotation marks or hedging, right *slaps knees*, the power of saying something which technically means nothing.
  • Let's Learn Everything!

    101: Why is the Sky Blue & Speech Disfluency

    12/03/2026 | 1h 46 mins.
    For episode 101, we're challenging ourselves to make a technically family friendly, swear free episode! Why is the sky blue? Well it turns out it took a lot of science to understand why! And what is speech disfluency? Well it's like... um... you'll see!

    Images we Talk About:
    Green Flash
    Sunset

    Timestamps:

    (00:00:00) Intro

    (00:06:43) Why is the Sky Blue

    (00:54:28) Speech Disfluency

    (01:40:45) Outro

    Support us with a Max Fun Membership!

    Join our Discord!

    We also learn about: it’s like playing mozart for children, mystery spires, atmospheric optics is responsible for all the bangers, they didn’t have a word for blue but they could perceive it, davinci and newton were on the right track, and thus the liberal lie of the greenhouse effect was born, Tyndell was just trying to clean an air sample and saw it turn blue, Baron’s used to be useful at least, Tom’s mind gets rocked by Rayleigh scattering, why isn’t the sky purple, When was the sky blue? the great oxidation event, sky is atmosphere, why is the sun so tiny OH ITS FAR AWAY, Ella pulled a Tom at the intro, Ella’s filler montage, no swearing no fillers challenge, there’s no fillers in the speech we watch on TV and movies, we actually um-dope our podcast in post, people used filler words in the past too, it’s found in poems and the earliest recorded sounds, the valley girl like, natural language corpuses, the 2 genders are uh and um, fillers in other languages, parasite words, uh is almost universal, the function of filler, backchanneling, measuring um reaction times, a visit from Gretchen, um is like a swiss army knife, like as quotation marks or hedging, right *slaps knees*, the power of saying something which technically means nothing.

    StellarNet: A Brief History of the Sky’s Blueness
    Blog: The bizarre myth that Ancient Greeks couldn't see blue
    2023 Paper: Revisiting the question “Why is the sky blue?”
    Wiki- John Tyndall
    The Conversation: John Tyndall: the forgotten co‑founder of climate science
    Wiki: Rayleigh Scattering
    NASA: The Electromagnetic Spectrum
    Scientific American: Mirages
    IFL Science: Orange Sky
    The Great Oxidation Event: How Cyanobacteria Changed Life
    Royal Museums Greenwich: Why Is The Sky Blue
    Mars in a Box: Martian Sunsets

    ---
    Wikipedia: Filler (linguistics)
    Thought Co: Definitions and Examples of Filler Words
    The Register: Why Do We Say Um?
    Paper: Listeners' Uses of Um and Uh in Speech Comprehension
    New York Times: So, Um, How Do You, Like, Stop Using Filler Words?
    University of Colorado Paper: We, um, have, like, a problem
    Guardian: Why Do People Say Like So Much?
    NPR: Why Do We Say Um So Much?
    BBC: Teen Slang
    Paper: Fillers, Pauses and Placeholders
    Cambridge: Hidden Use of Fillers
    The British National Corpus 2014
    Language Hat: The Mystery of Fillers
    The Atlantic : “Men Say 'Uh' and Women Say 'Um'”
    Language Log: Men and Women’s Use of Words
    JStor: Filler Words and Floor Holders
    THE CALIFORNIA STORY 1906 By Thomas A. Edison
  • Let's Learn Everything!

    Out Sick Recast: SciShow Tangents w/ Tom!

    26/02/2026 | 53 mins.
    Tom & Ella are out sick! So enjoy this recast of when Tom was healthy and on SciShow Tangents!

    OR enjoy our 2 hours on the Project 4 Awesome livestream, basically a video podcast!

    OR check out all our other stuff at https://www.LetsLearnEverything.com/

    Thanks for your patience y'all! - Tom, Ella, & Caroline
  • Let's Learn Everything!

    100: Everything

    12/02/2026 | 2h 17 mins.
    You asked, and we finally answered, today we are Finally, actually learning everything! Something that is definitely possible and easy to do. Caroline covers infinity, which can include basically anything, Ella covers what everything is made of, and Tom does the rest! Simple, right?

    Images we Talk About:
    Cantor's Diagonal Argument
    The Bullet Cluster

    Timestamps:

    (00:00:00) Intro

    (00:04:28) Infinity

    (00:49:09) What's Everything Made Of?

    (01:29:52) Everything Else

    (02:08:54) Outro

    Support us with a Max Fun Membership!

    Join our Discord!

    We also learn about: 

    Infinity is the amount I love you guys - oh I made such a noise of disgust, my infinity could beat your infinity, quoting The Fault in Our Stars, ancient Greeks had a horror for the infinite, Euclid refused to use infinity, we have no physical proof that any item can be infinite, turning water into wine and counting to infinity, next time someone says I love you infinity plus one call them a number annihilator, pre-scowling, we ask Caroline a million questions about sets, sets offer a new language for math, “actually Ella they use the word transfinite”, Caroline rage baits Ella, Ella loves Cantor’s diagonal argument but people at the time HATED it, Cantor was a “corrupter of youth”, the universe is everything, god dammit is there more than matter, pigeons and pizza and Ella’s giant gengar plush are made of quarks and leptons, ordinary matter is just 5% of the universe, 26.8% is dark matter and the rest is dark energy, dark energy and matter are not interchangeable - dark just means we can’t observe them, your MOM is massive, 1933 dark matter is theorized to make the math work, dark matter is not a theory it is an observation of missing mass, the differing mass of the bullet cluster, halos of dark matter around galaxies, red shift in every direction, don’t @ me about the accelerated expansion of the universe, dark energy is the mysterious force that keeps the universe expanding, heat death or re-contraction, dark matter and dark energy are warring siblings trying to pull everything together and apart and we’re stuck in the middle, list of all wikipedia pages, OH NO IT’S INTERESTING, monk stuff, the exclamation mark came during the humanist era of the renaissance, oh no we printed the ironic bible! inverted exclamation marks, exclamation mark haters, old comics had exclamation marks for periods! Making Beowulf Scream, Lo! per my last email, our show didn’t start with an exclamation mark - it snuck its way into being beloved, no one is sure how the exclamation mark ended up in programming languages, DO anthropomorphize the exclamation mark, please don’t be disappointed we didn’t stop the podcast, We Didn't Stop the Podcast.

    We Didn't Stop the Podcast Lyrics

    Sources:
    Wikipedia: Infinity Symbol
    Wikipedia: Infinity
    Polytechnique: A (Very) Brief History of Infinity
    Britannica: Infinity
    Stanford Encyclopedia of Philosophy: Infinity
    1983 Paper: The Realization of Infinity: On the Philosophy of John M. Anderson
    Scientific American: Some Mathematicians Don’t Believe in Infinity
    2017 Paper: Actual and Potential Infinity
    Schechter: Potential versus Completed Infinity
    Medium: Infinity Isn’t Just a Number — It’s a Mind-Bending Universe of Paradoxes
    Youtube: minutephysics
    Youtube: Jim Fowler
    Blog: The Math of Dr Who #4.2

    ---
    Etymonline: Etymology of Everything
    Wikipedia: Everything
    NASA: What is the Universe?
    EBSCO: Leptons
    Harvard: What is the Univer Made Of?
    ESA: What is the Unvierse Made Of?
    Astrobites: ΛCDM
    NASA: Building Blocks
    ESA: Dark Matter and Dark Energy
    Angela Collier: Dark Matter is Not a Theory
    NASA: Dark Matter
    Forbes: Who Really Discovered Dark Matter
    Harvad: Dark Energy and Dark Matter
    NASA: Bullet Cluster
    ESA: Gravitaional Lensing
    ESA: Redshift
    ESA: Comsic Microwave Background

    ---
    Wikipedia List of All Pages
    Florence Hazrat's "An Admirable Point: a Brief History of the Exclamation Point"
    Florence Hazrat Interview
    The Irony Mark
    Stan Lee on Comic Book Exclamation Marks
    Marvel End of Exclamation Mark Announcement
    Making Beowulf Scream
    History of Factorial
    Figuring out the Origin of ! in Computer Science

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About Let's Learn Everything!

Science communicators Ella Hubber, Tom Lum, and Caroline Roper learn about anything and everything interesting! Each episode they teach each other about a science topic, and learn about a miscellaneous topic. Whether it's bugs on drugs, temporal illusions, or fanfiction, there's so much out there, so let's learn everything! Join our Discord, email us, and follow us everywhere at www.LetsLearnEverything.com
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