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MonstrumAn original PBS web series.
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- Now Playing11minThe Hazy Evolution of Cannabis
- Now Playing11minMeasuring the Universe With a 14-Billion Light-Year Ruler
- Now Playing16minHow Eclipses Revealed Our Solar System
- Now Playing10minA Giant Monster With a Giant Problem
- Now Playing10minWhat Will Earth Be Like 300 Million Years From Now?
- Now Playing16minWhat If Gravity is Not A Fundamental Force?
- Now Playing15minDoes Space Emerge From A Holographic Boundary?
- Now Playing8minIs the Southern Accent Disappearing?
- Now Playing15minThis Winter Trend Is Overpowering Global Warming
- Now Playing8minWhat Was The Earliest Surgery?
It's Okay to Be Smart
- Now Playing5minЩΉӨ BЦIƬ ƬΉΣ PYЯΛMIDƧ - Who Built The Pyramids
- Now Playing5minThe Superb Owl!
- Now Playing6minVENOM: Nature's Killer Cocktails
- Now Playing2minWhy Do Men Have Nipples? - 12 Days of Evolution #7
- Now Playing4minWhat's The Loudest Possible Sound?
- Now Playing6minWhy It Is What Time It Is (The History of Time)
- Now Playing8minThe Science of Game of Thrones
- Now Playing4minHow Poop Shapes the World
- Now Playing2minWhat Is Evolution, Anyway? - 12 Days of Evolution #1
- Now Playing4minWhy Seasons Make No Sense
- Now Playing5minSunburn, Sweat and the Science of Summer!
- Now Playing2minIs Evolution Random? - 12 Days of Evolution #2
- Now Playing7minHow the Meter Became The Meter
- Now Playing7minWhere Do Teeth Come From?
- Now Playing6minHow to Figure Out the Day of the Week For Any Date Ever
- Now Playing6minWhy Do We Cook?
- Now Playing6minThe Surprising Origin of Thanksgiving Foods
- Now Playing3minWhy is the sky any color?
- Now Playing5min5 Weird Involuntary Behaviors Explained!
- Now Playing6minPay Attention!
Origin of Everything
- Now Playing9minThe Origin of Gender
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing9minWhy Do All Malls Look the Same?
- Now Playing10minThe 2nd Amendment Explained
- Now Playing11minWhy Do So Many Religions Have Headwear?
- Now Playing7minWhy Do We Eat Popcorn at The Movies?
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing9minThe Origin of Gender
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing8minWhy Did Europeans Enslave Africans?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing10minWhat is Ethnicity?
- Now Playing7minWhy Does Santa Wear Red?
- Now Playing11minWhat is Racial Passing?
- Now Playing8minWhy Do People Have Pets?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing12minSix Historically True Facts about Money
- Now Playing8minWhy Do We Eat Artificial Flavors?
- Now Playing12minWhy Do We Have Housing Projects?
Two Cents
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing5minBudgeting Basics
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing4minWhat is the DOW?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing8min5 Ways People Are Dumb About Money
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minWomen Financial Superpowers
- Now Playing6minMoving Without Spending a Fortune
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing7minLove and Money
- Now Playing6minDo I Need To Buy A House?
Monstrum
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing10minIs Yuki-onna the Most Terrifying Snow Monster?
- Now Playing17minModern Zombies: The Rebirth of the Undead
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
Eons
- Now Playing6minDimetrodon: Our Most Unlikely Ancestor
- Now Playing12minWhen a Billion Years Disappeared
- Now Playing9minThe Rise and Fall of the Bone-Crushing Dogs
- Now Playing8minWhen Birds Stopped Flying
- Now Playing11minFrom the Cambrian Explosion to the Great Dying
- Now Playing5minWhen Whales Walked
- Now Playing11minWhy Megalodon (Definitely) Went Extinct
- Now Playing14minThe History of Climate Cycles (and the Woolly Rhino)
- Now Playing9minWhen Fish First Breathed Air
- Now Playing11minWhen We First Walked
- Now Playing10minLife, Sex & Death Among the Dire Wolves
- Now Playing10minWhen Humans Were Prey
- Now Playing10minWhy The Paleo Diet Couldn't Save The Neanderthals
- Now Playing12minWhat Was the Ancestor of Everything?
- Now Playing7minWhen Giant Deer Roamed Eurasia
- Now Playing8minHow Plate Tectonics Gave Us Seahorses
- Now Playing8minWhen Dinosaur Look-Alikes Ruled the Earth
- Now Playing6minThe Time Terror Birds Invaded
- Now Playing13minAn Illustrated History of Dinosaurs
- Now Playing9minThe Fungi That Turned Ants Into Zombies
Hot Mess
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing5minWhy Climate Change is Unjust
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing4minHow Much Energy Does the Internet Use?
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing4minHow Much Energy Does the Internet Use?
- Now Playing13minThe Rise of Climate Fiction feat. Lindsay Ellis & Amy Brady
- Now Playing12minOur Food System is Rigged feat. Sheril Kirshenbaum
- Now Playing5minWho Should Pay To Fix Climate Change?
Space Time
- Now Playing12minThe Black Hole Entropy Enigma
- Now Playing8minEscape The Kugelblitz Challenge
- Now Playing15minPerpetual Motion From Negative Mass?
- Now Playing17minCould LIGO Find Massive Alien Spaceships?
- Now Playing5minS3 Ep18: Gravity in Your Brain ft. Neil deGrasse Tyson!
- Now Playing2minHow to Weigh a Fart
- Now Playing11minThe Misunderstood Nature of Entropy
- Now Playing12minDo Events Inside Black Holes Happen?
- Now Playing11minThe Geometry of Causality
- Now Playing13minDid Dark Energy Just Disappear?
- Now Playing15minWhy Magnetic Monopoles SHOULD Exist
- Now Playing11minS2: Can We Survive the Destruction of the Earth?
- Now Playing14minHow Vacuum Decay Would Destroy The Universe
- Now Playing10minWhat Do Stars Sound Like?
- Now Playing11minBlack Holes from the Dawn of Time
- Now Playing15minWhere Is The Center of The Universe?
- Now Playing13minThe Secrets of Feynman Diagrams
- Now Playing10minThe One-Electron Universe
- Now Playing18minWhat If The Universe Is Math?
- Now Playing6minSuicide Space Robots
Beat Making Lab
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing4minTrapped In Paradise
- Now Playing2minHealth Worker Beat
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing4minDiablos (music video)
Infinite Series
- Now Playing15minArrow's Impossibility Theorem
- Now Playing9minA Hierarchy of Infinities
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing10minThe Assassin Puzzle
- Now Playing8minHow to Divide by "Zero"
- Now Playing9minBeyond the Golden Ratio
- Now Playing11minSingularities Explained
- Now Playing14minInfinite Chess
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing17minSplitting Rent with Triangles
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing11minSingularities Explained
- Now Playing10minThe Assassin Puzzle
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
Idea Channel
- Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
- Now Playing6minAre MP3s & Vinyl Better than Live Music?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing4minThe Bronies Phenomenon
- Now Playing3minWhat Makes a Pop Star Authentic?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing8minIs Piracy Helping Game of Thrones?
- Now Playing9minIs Community a Postmodern Masterpiece?
- Now Playing5minAre You a Hipster?
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing8minIs Developing Artificial Intelligence (AI) Ethical?
- Now Playing8minIs Sad Music Actually Sad?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing9minDoes Math Really Exist?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing3minSuper Mario Brothers as Surrealist Art?
- Now Playing6minIs Futurama the Best Argument Against Transhumanism?