Free movies
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.
On now
Up next
Latest
- 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 Playing8minHow Big is the Solar System?
- Now Playing7minWhy Vaccines Work
- Now Playing10minThe Impossible Hugeness of Deep Time
- Now Playing7minYour Salad Is Trying To Kill You
- Now Playing7minWe Got Ants In Our Plants!
- Now Playing4minHow Many Stars Are There?
- Now Playing11minWhy Are So Many People Allergic To Food?
- Now Playing5minSolving the Puzzle of Plate Tectonics
- Now Playing7minEngines of Destruction: How Hurricanes Work
- Now Playing4minOrchid Mantis: Looks That Kill
- Now Playing7minWhy Do You Love Your Family?
- Now Playing5minMuch A-Do About Hair
- Now Playing7minIs Height All in Our Genes?
- Now Playing5minWhy Music Moves Us
- Now Playing5minIs Inheritance Really All In Our Genes?
- Now Playing4minDogs and Humans: A 30,000-Year Friendship (ft. MinuteEarth)
- Now Playing6minWhy Are There As Many Males As Females?
- Now Playing6minShould You Be Worried About Zika?
- Now Playing5minCould Planet Minecraft Actually Exist?
- Now Playing5minDo Animals Mourn Their Dead?
Origin of Everything
- Now Playing6minWhy it Was Illegal to be Ugly?
- Now Playing10minWould You Have Joined the American Revolution?
- Now Playing11minWhy Are We Obsessed with Cults?
- Now Playing9minWhat If There Were No Taxes?
- Now Playing10minThe Origin of Race in the USA
- Now Playing9minHow Did Edison Invent Christmas Lights?
- Now Playing5minWhat Was Jesus' Real Name?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing10minDo Standardized Tests Do More Harm Than Good?
- Now Playing10minHow Did Makeup Ads Go From Style to Science?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing8minWhy Do We Wash Our Hands After Going to the Bathroom?
- Now Playing7minWhy Are There So Few Women in Computer Science?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing10min6 Weird Facts About the History of Birth Control
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing8minWhy Do Kids Have Their Own Bedrooms?
- Now Playing8minWhere Does the #Hashtag Symbol Come From?
- Now Playing11minWhy Does the Government Pay for Art?
- Now Playing10minWhy Does the Government Need to Know My Race?
Two Cents
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing4minWhat is the DOW?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing8min5 Ways People Are Dumb About Money
- Now Playing6minMoving Without Spending a Fortune
- Now Playing6minWomen Financial Superpowers
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
Monstrum
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing10minJorōgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing6minThe Origin of Medusa
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing6minRethinking Frankenstein's Monster
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
Eons
- Now Playing10minThe Hidden Genes That Make Us Human
- Now Playing9minThe Oddest Couple in the Fossil Record
- Now Playing12minYour Place in the Primate Family Tree
- Now Playing13minDid Raptorex Really Exist?
- Now Playing11minWhen Giant Lemurs Ruled Madagascar
- Now Playing12minWhen Sharks Swam the Great Plains
- Now Playing9minHow Our Deadliest Parasite Turned To The Dark Side
- Now Playing5minThat Time Oxygen Almost Killed Everything
- Now Playing8minThe Extinction That Never Happened
- Now Playing7minThe Genes We Lost Along the Way
- Now Playing6minThe Story of Saberteeth
- Now Playing10minHow Ancient Art Captured Australian Megafauna
- Now Playing10minLife, Sex & Death Among the Dire Wolves
- Now Playing11minFrom the Cambrian Explosion to the Great Dying
- Now Playing5minThat Time Oxygen Almost Killed Everything
- Now Playing9minOur Ancient Relative That Said 'No Thanks' To Life On Land
- Now Playing11minDid These Giant Sloths Poop Themselves to Death?
- Now Playing13minAn Illustrated History of Dinosaurs
- Now Playing10minHow Chilis Got Spicy (and Why We Love the Burn)
- Now Playing10minWhen Giant Hypercarnivores Prowled Africa
Hot Mess
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- 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 Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing9minHow to Talk About Climate Change
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing5minWe've Ignored Climate Change For More Than a Century
Space Time
- Now Playing7minHow to Signal Aliens
- Now Playing15minDeep Time: Crash Course Astronomy #45
- Now Playing14minAre Dark Matter And Dark Energy The Same?
- Now Playing9minCan a Circle Be a Straight Line?
- Now Playing12minThe Alchemy of Neutron Star Collisions
- Now Playing11minNo Dark Matter = Proof of Dark Matter?
- Now Playing14minIs The Wave Function The Building Block of Reality?
- Now Playing14minThe Big Bang, Cosmology part 1: Crash Course Astronomy #42
- Now Playing11minFirst Detection of Life
- Now Playing14minCould the Higgs Boson Lead Us to Dark Matter?
- Now Playing12minHow Do We Know What Stars Are Made Of?
- Now Playing12minSolving the Impossible in Quantum Field Theory
- Now Playing10minZero-Point Energy Demystified
- Now Playing13minAre We Living in an Ancestor Simulation? ft. Neil deGrasse T
- Now Playing11minHow Cosmic Inflation Flattened the Universe
- Now Playing11minMartian Evolution
- Now Playing11minWhy is the Earth Round and the Milky Way Flat?
- Now Playing10minHow to Capture Ghost Particles
- Now Playing10minTelescopes of Tomorrow
- Now Playing9minIs There a Fifth Fundamental Force? + Quantum Eraser Answer
Beat Making Lab
- Now Playing2minField Trip: Prison Beats
- Now Playing3minGet Your Drums Right
- Now Playing10minHeartbeats of Fiji
- Now Playing2minMashup: National Anthems
- Now Playing5minBehind the Beat: Portobelo
- Now Playing2minWhat's In the Backpack?
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing4minDiablos (music video)
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing2minHealth Worker Beat
- Now Playing4minTrapped In Paradise
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
Infinite Series
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing10minThe Assassin Puzzle
- Now Playing11minSingularities Explained
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing17minSplitting Rent with Triangles
- Now Playing16minHow to Break Cryptography
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing13minWhat is a Random Walk?
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing11minThe Geometry of SET
- Now Playing15minArrow's Impossibility Theorem
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing14minBuilding an Infinite Bridge
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing9minBeyond the Golden Ratio
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
Idea Channel
- Now Playing8minIs Piracy Helping Game of Thrones?
- Now Playing9minIs Community a Postmodern Masterpiece?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing3minWhat Makes a Pop Star Authentic?
- Now Playing4minThe Bronies Phenomenon
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minAre MP3s & Vinyl Better than Live Music?
- Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
- Now Playing6minAre Virtual Video Game Economies Becoming Real?
- Now Playing3minSuper Mario Brothers as Surrealist Art?
- Now Playing6minIs Futurama the Best Argument Against Transhumanism?
- 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 Playing8minIs Sad Music Actually Sad?
- Now Playing5minAre You a Hipster?
- Now Playing3minIs the Web Browser Replacing the Art Gallery?