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Space TimeSpace Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth.
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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 Playing6minThe Surprising Origin of Thanksgiving Foods
- Now Playing9minSo You Want to go to Mars?
- Now Playing5minWhy Do We Itch?
- Now Playing4minWe're Mainly Microbe: Meet Your Microbiome
- Now Playing8minIs Space A Thing?
- Now Playing5minBeavers: The Smartest Things in Fur Pants
- Now Playing3minDoes Evolution Have a Point? 12 Days of Evolution #12
- Now Playing5minHow Many Heartbeats Do We Get?
- Now Playing6minThe Delicious Science of CHEESE!
- Now Playing3minYour Mom is LITERALLY Part Of You!
- Now Playing10minExoplanets: Are There Other Earths?
- Now Playing3minBuilding Curiosity
- Now Playing3minWhere Does the Smell of Rain Come From?
- Now Playing4minCuttlefish: Tentacles In Disguise
- Now Playing7minWhich Life Form REALLY Dominates Earth?
- Now Playing5minSolving the Puzzle of Plate Tectonics
- Now Playing6minRelationship Advice from the Animal Kingdom
- Now Playing5minWhy Do We Itch?
- Now Playing4minThe Surprising Places We Waste Energy
- Now Playing8minWhy Do We Have to Sleep
Origin of Everything
- Now Playing9minThe Origin of Gender
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing8minWhy Did Europeans Enslave Africans?
- Now Playing9minWhy Do All Malls Look the Same?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing9minThe Origin of Gender
- Now Playing10minThe 2nd Amendment Explained
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing7minWhy Do We Eat Popcorn at The Movies?
- Now Playing11minWhy Do So Many Religions Have Headwear?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhat is Racial Passing?
- Now Playing12minSix Historically True Facts about Money
- Now Playing8minWhy Do We Eat Artificial Flavors?
- Now Playing12minWhy Do We Have Housing Projects?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing10minWhat is Ethnicity?
- Now Playing7minWhy Does Santa Wear Red?
Two Cents
- Now Playing8min5 Ways People Are Dumb About Money
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing4minWhat is the DOW?
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing5minBudgeting Basics
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow are credit scores calculated?
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing7minLove and Money
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing6minDo I Need To Buy A House?
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
Monstrum
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing6minRethinking Frankenstein's Monster
- Now Playing6minThe Origin of Medusa
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing10minJorōgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- 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 Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing12minDeath Worms: Fact or Fiction?
Eons
- Now Playing12minHow Humans Lost Their Fur
- Now Playing6minHow Did Dinosaurs Get So Huge?
- Now Playing9minWhen Apes Conquered Europe
- Now Playing9minAre We All Actually Archaea?
- Now Playing10minSomething Has Been Making This Mark For 500 Million Years
- Now Playing8minThe Rise and Fall of the Tallest Mammal to Walk the Earth
- Now Playing9minHow Humans Became (Mostly) Right-Handed
- Now Playing9minHow the Squid Lost Its Shell
- Now Playing8minThe Case of the Dinosaur Egg Thief
- Now Playing8minHow Two Microbes Changed History
- Now Playing10minHow To Survive the Little Ice Age
- Now Playing11minWhen A Marsupial Became An Apex Predator
- Now Playing6minDimetrodon: Our Most Unlikely Ancestor
- Now Playing8minThat Time It Rained for Two Million Years
- Now Playing10minHow Blood Evolved (Many Times)
- Now Playing12minWhen Bats Took Flight
- Now Playing6minThe Time Terror Birds Invaded
- Now Playing10minThe Neanderthals That Taught Us About Humanity
- Now Playing10minThese Creatures Were Darwin's Greatest Enemy
- Now Playing10minWhen We First Made Tools
Hot Mess
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing9minHow to Talk About Climate Change
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing10minThe Link Between Extreme Weather and Climate Change
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing5minWhat Can You Actually Do About Climate Change?
Space Time
- Now Playing13minThe Phantom Singularity
- Now Playing15minElectrons DO NOT Spin
- Now Playing6minThe Race to a Habitable Exoplanet - Time Warp Challenge
- Now Playing9minWhat's the Most Realistic Artificial Gravity in Sci-Fi?
- Now Playing12minUnderstanding the Uncertainty Principle
- Now Playing8minEscape The Kugelblitz Challenge
- Now Playing6minHow Do You Measure the Size of the Universe?
- Now Playing3minThe Leap Second Explained
- Now Playing13minDark Flow
- Now Playing10minWhat's Wrong With the Big Bang Theory?
- Now Playing11minWhy Quasars are so Awesome
- Now Playing13minWill We Ever Find Alien Life?
- Now Playing15minCould We Decode Alien Physics?
- Now Playing9minWill Mars or Venus Kill You First?
- Now Playing13minWill You Travel to Space?
- Now Playing12minHow to Detect Extra Dimensions
- Now Playing11minThe Speed of Light is NOT About Light
- Now Playing19minHow Will We (Most Likely) Discover Alien Life?
- Now Playing13minThe Many Worlds of the Quantum Multiverse
- Now Playing6minWhat Planet Is Super Mario World?
Beat Making Lab
- Now Playing4minTrapped In Paradise
- Now Playing2minHealth Worker Beat
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minProf. Angel Sound Prison Beats Interview
- 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)
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minBeat Making Challenge #1: Accordion Trap
Infinite Series
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing14minBuilding an Infinite Bridge
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing15minArrow's Impossibility Theorem
- Now Playing11minThe Geometry of SET
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing11minTopology vs "a" Topology
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing9minBeyond the Golden Ratio
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing17minSplitting Rent with Triangles
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing10minThe Assassin Puzzle
- Now Playing11minSingularities Explained
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing13minWhat is a Random Walk?
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
Idea Channel
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing5minAre You a Hipster?
- Now Playing8minIs Developing Artificial Intelligence (AI) Ethical?
- Now Playing3minSuper Mario Brothers as Surrealist Art?
- Now Playing6minIs Futurama the Best Argument Against Transhumanism?
- Now Playing6minAre Virtual Video Game Economies Becoming Real?
- 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 Playing6minIs Doctor Who a Religion?
- Now Playing9minDoes Math Really Exist?
- Now Playing4minThe Bronies Phenomenon
- Now Playing6minAre MP3s & Vinyl Better than Live Music?
- Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing8minIs Piracy Helping Game of Thrones?
- Now Playing9minIs Community a Postmodern Masterpiece?