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It's Okay To Be SmartI'm Joe Hanson, Ph.D and this program is all about science, the amazing universe we live in and how science connects to every part of our life.
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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 Playing6minDo Plants Think?
- Now Playing7minDoes My Dog Know What I'm Thinking?
- Now Playing6minCRISPR and the Future of Human Evolution
- Now Playing9minWhy Do We Get Dizzy (...and Astronauts Don't?)
- Now Playing5minWhy Your Brain Is In Your Head
- Now Playing8min6 Chemical Reactions That Changed History
- Now Playing6minIs Sugar A Drug?
- Now Playing5minWhen Is It Winter On Other Planets?
- Now Playing5minHow Your Body Knows Left From Right
- Now Playing9minAmazing Animal Superpowers
- Now Playing4minThe Surprising Places We Waste Energy
- Now Playing8minThe Science of Game of Thrones
- Now Playing9minAmazing Animal Superpowers
- Now Playing5minThe Odds of Finding Life and Love
- Now Playing7minWill You Still Eat Raw Fish After Watching This Video?
- Now Playing8minWhy Is Blue So Rare In Nature?
- Now Playing6minHow Do Bees Make Honey?
- Now Playing6minWhat's The Hottest Hot and Coldest Cold?
- Now Playing4minThe Cosmic Afterglow
- Now Playing5minBeavers: The Smartest Things in Fur Pants
Origin of Everything
- Now Playing7minWhy are 18 Year Olds Considered Adults?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing11minModern Warfare and Alien Invasions
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing9minDoes the Rorschach Inkblot Test Work?
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing11minWhy Does the Government Pay for Art?
- Now Playing8minWhy Do Kids Have Their Own Bedrooms?
- Now Playing8minWhere Does the #Hashtag Symbol Come From?
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing10min6 Weird Facts About the History of Birth Control
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing8minWhy Do We Wash Our Hands After Going to the Bathroom?
- Now Playing7minWhy Are There So Few Women in Computer Science?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing10minDo Standardized Tests Do More Harm Than Good?
- Now Playing10minHow Did Makeup Ads Go From Style to Science?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing9minHow Did Edison Invent Christmas Lights?
Two Cents
- Now Playing9minHow Smart Entrepreneurs Think About PRICES!
- Now Playing6minI'm Young & Healthy, Can I Skip Health Insurance?
- Now Playing6minFighting the Wedding Industrial Complex
- Now Playing6minIs My Identity Safe From Hackers?
- Now Playing7minWhich College Majors Give the Most Bang for Your Buck?
- Now Playing7minMoney, A Global Game of Trust
- Now Playing7minHow Retailers Stalk You Online
- Now Playing5minInsta-Everything
- Now Playing5minDo Kids Need to Learn About Money?
- Now Playing7minFighting the Financial Pitfalls of the Supermarket
- Now Playing7minIs Your Side Hustle Hustling You?
- Now Playing7minShould I Invest In Cannabis Stocks?
- Now Playing7minWhat's The Real Cost of Dying?
- Now Playing6minHow to Ask for a Raise
- Now Playing6minTop 5 Biggest Financial Scams
- Now Playing7minWhy It's More Expensive To Be Poor
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
Monstrum
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing10minIs Yuki-onna the Most Terrifying Snow Monster?
- Now Playing17minModern Zombies: The Rebirth of the Undead
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing12minWas PĂșca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
Eons
- Now Playing12minThe Humans That Lived Before Us
- Now Playing10minHow Dogs (Eventually) Became Our Best Friends
- Now Playing12minAnimals Are Older Than We Thought
- Now Playing10minThat Time the American West Blew Up
- Now Playing12minWhere Are All the Medium-Sized Dinosaurs?
- Now Playing8minThe Hellacious Lives of the "Hell Pigs"
- Now Playing10minThe World Before Plate Tectonics
- Now Playing8minDo Thunderbeasts Prove Giant Animals Are Inevitable?
- Now Playing8minInside the Dinosaur Library
- Now Playing12minWhen Antarctica Was Green
- Now Playing10minWhen Humans Were Prey
- Now Playing5minWhen Whales Walked
- Now Playing10minHow Weasels Got Skinny
- Now Playing12minWhen Birds Had Teeth
- Now Playing8minHow Did Our Most Famous Ancestor Really Die?
- Now Playing10minThe Neanderthals That Taught Us About Humanity
- Now Playing10minThese Creatures Were Darwin's Greatest Enemy
- Now Playing10minWhen We First Made Tools
- Now Playing6minThe Time Terror Birds Invaded
- Now Playing8minThat Time It Rained for Two Million Years
Hot Mess
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing10minAre You Scared Enough? feat. David Wallace-Wells
- Now Playing5minWhy Climate Change is Unjust
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minWhat's actually the worst greenhouse gas?
Space Time
- Now Playing14minWhat are the Strings in String Theory?
- Now Playing14minThe Crisis in Cosmology
- Now Playing13minAnti-gravity and the True Nature of Dark Energy
- Now Playing14minCould the Universe End by Tearing Apart Every Atom?
- Now Playing15minDark Forest: Should We Not Contact Aliens?
- Now Playing10minSelf-Replicating Robots and Galactic Domination
- Now Playing15minDid Life on Earth Come from Space?
- Now Playing10minTelescopes on the Moon
- Now Playing6minThe Calendar, Australia & White Christmas
- Now Playing10minWhat Does Dark Energy Really Do?
- Now Playing13minPilot Wave Theory and Quantum Realism
- Now Playing10minStrange Stars
- Now Playing9minThe Star at the End of Time
- Now Playing14minThe Crisis in Cosmology
- Now Playing12minWhat Happens at the Event Horizon?
- Now Playing13minIs Earth's Magnetic Field Reversing?
- Now Playing14minLoop Quantum Gravity Explained
- Now Playing13minWhy We Might Be Alone in the Universe
- Now Playing10minThe Eye of Sauron Reveals a Forming Solar System!
- Now Playing8minLIGO's First Detection of Gravitational Waves!
Beat Making Lab
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing4minDiablos (music video)
- 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 Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing2minHealth Worker Beat
- Now Playing4minTrapped In Paradise
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing5minBehind the Beat: Portobelo
- Now Playing2minWhat's In the Backpack?
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
Infinite Series
- Now Playing8minHow to Divide by "Zero"
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing10minThe Assassin Puzzle
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing14minInfinite Chess
- Now Playing11minSingularities Explained
- Now Playing9minBeyond the Golden Ratio
- Now Playing15minArrow's Impossibility Theorem
- Now Playing9minA Hierarchy of Infinities
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing15minArrow's Impossibility Theorem
- Now Playing11minThe Geometry of SET
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing14minBuilding an Infinite Bridge
- Now Playing13minThe Mathematics of Quantum Computers
Idea Channel
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing4minThe Bronies Phenomenon
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing5minA Visit to Mr. Monfre's Class
- Now Playing5minThere's No Such Thing as Online?!?
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing9minIs the Universe a Computer?
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing5minIs CSS and Website Design a Fashion Statement?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing8minDo Knock-Offs Prove the Value of a Brand?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing9minCan Video Games Become the Next Spectator Sport?
- Now Playing8minIs a Tagged Instagram More Than Just a Photo?