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Murder Maps S1 Ep3: Finding Dr. CrippenIn 1910, the infamous Dr. Crippen killed his wife and buried her in the basement.

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Murder Maps S1 Ep3: Finding Dr. CrippenIn 1910, the infamous Dr. Crippen killed his wife and buried her in the basement.0Murder Maps S1 Ep4: The Brides in the Bath KillerEvil George Smith married and murdered several wives in the 1910's.

4th and Forever

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4th and Forever: Alcoa

• Now Playing35minAgainst all Odds
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• Now Playing28minThe Battle of Pistol Creek, Part 2
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4th and Forever: DeSoto

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4th and Forever: Muck City

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A Curious World

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• Now Playing8minAncient Builders
• Now Playing6minLive Long & Prosper
• Now Playing7minUnderwater Worlds
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• Now Playing8minWeather
• Now Playing7minFirst Life On Earth
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• Now Playing9minExtraterrestrials
• Now Playing8minTime Tellers
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• Now Playing9minCan We Colonize Mars?
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Age Of Big Cats

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• Now Playing52minWorld Domination
• Now Playing52minSurvivors

Amazing Dinoworld

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American Icons

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• Now Playing13minBabe Ruth
• Now Playing14minFDR
• Now Playing14minTom Edison
• Now Playing12minMark Twain
• Now Playing11minThomas Jefferson
• Now Playing13minGeorge Washington
• Now Playing14minEleanor Roosevelt
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Ancient Earth

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• Now Playing11minThe Triassic
• Now Playing15minThe Cretaceous

Ancient Earth: Dinosaurs of the Frozen Continent

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• Now Playing51minWhat Lies Beneath

Ancient Engineering

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• Now Playing50minThe Great Wall of China
• Now Playing50minSecrets of the Pyramids
• Now Playing50minRise of the Super-Castle
• Now Playing50minSecrets of Notre Dame
• Now Playing50minSecrets Of Angkor Wat
• Now Playing50minThe Power Of Water
• Now Playing50minHistory's Greatest Ships
• Now Playing50minStone Age Secrets
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Ancient Yellowstone

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Besieged Fortresses, Battles Of Legend

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Beyond The Spotlight

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Big Picture Earth: Natural Sound

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• Now Playing31minDesert Of Wadi Rum
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Blindspots

• Now Playing27minLos Angeles
• Now Playing25minSeattle / Vancouver
• Now Playing26minNew York City
• Now Playing24minLondon
• Now Playing25minUnited Kingdom
• Now Playing26minTexas
• Now Playing25minGermany
• Now Playing25minSwitzerland
• Now Playing25minTokyo
• Now Playing25minOsaka / Kyoto

Bright Now, Part 1

• Now Playing12minParasite Planet
• Now Playing22minMystery Signal from Space
• Now Playing9minHacking our Microbiome
• Now Playing18minAfrican Animal Rescue
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• Now Playing21minHunt for the U-576
• Now Playing9minSkinny Genes
• Now Playing9minSaving Venice
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• Now Playing10minNew Firefighting Tech
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• Now Playing10minBay of Crocs
• Now Playing13minThe Mystery of U-455
• Now Playing11minMonkey Island
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Bright Now, Part 2

• Now Playing14minKetamine: From Street Drug to Lifesaver
• Now Playing13minTiny House: Living Off the Grid
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• Now Playing12minCan You Learn to Be Funny?
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• Now Playing10minChungungo: The World's Smallest Otter
• Now Playing12minWomen with ADHD
• Now Playing15minVeggie Power
• Now Playing16minPompeii: Behind the Scenes
• Now Playing15minGrowing up Hadza
• Now Playing13minEvolution of Flavor
• Now Playing14minMother Of The Everglades
• Now Playing13minCatching Florida's Apex Predator
• Now Playing13minThe Sweet & Sour Of Florida Sugar
• Now Playing14minFlorida's Garden of Eden
• Now Playing12minFrom The Frontlines Of Covid19
• Now Playing12minAmerica's Wildest Cat & Dog Rivalry
• Now Playing12minThe Birth Of Mar-a-Lago
• Now Playing12minPreparing for Hurricanes
• Now Playing15minThe Road To Florida
• Now Playing12minThe Shark Whisperer

Butterfly Effect

• Now Playing25minAlexander The Great
• Now Playing25minRace To The Moon
• Now Playing25minA Bus For Martin Luther King
• Now Playing25minKing Philippe Of France And Richard The Lionheart Of England
• Now Playing25minConfucius And Chinese Thought
• Now Playing25minGenghis Khan: The Empire Of The Steppes
• Now Playing25minDarwin Discovers The World
• Now Playing25minChernobyl: A Reactor Out Of Control
• Now Playing25minSekigahara: The Battle Of The Samurais
• Now Playing25minEinstein And The Manhattan Project
• Now Playing25minRome Vs. Barbarians
• Now Playing25minInternet: The Origins Of The Web
• Now Playing25minThe Birth Of Rock
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• Now Playing27minIstanbul: From One Empire To The Other
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• Now Playing27minThe Fronde: An Overthrow Of The Power
• Now Playing27minThe Olympic Games: A Mirror To Society
• Now Playing27minGutenberg: A Visionary Inventor

Casey's Wild Backyard

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• Now Playing7minBison
• Now Playing6minMountain Lion
• Now Playing6minSnakes

Celts: The Untold Story

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• Now Playing51minThe Art And War
• Now Playing49minSkyfall

Changing Ocean Asia

• Now Playing25minSinking Cities
• Now Playing28minExtreme Weather. Powerful Tsunamis.
• Now Playing25minUrban Oceans. Super Corals.
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Classic Cars

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• Now Playing13minDuesenberg
• Now Playing9minTerraplane
• Now Playing12minOldsmobile
• Now Playing11minMustang

Curiosity Retreats Lectures

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• Now Playing57minThe Future of the Internet
• Now Playing52minFrontiers Of Science
• Now Playing59minThe Future of Nanotechnology
• Now Playing45minScience of Happiness
• Now Playing49minA Universe of Big Numbers
• Now Playing57minDiscovery in Cosmology & Particle Physics
• Now Playing24minSuper Brain
• Now Playing59minThe Creative Brain
• Now Playing57minDigital Transcendence
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• Now Playing1hr 5minThe Human Face Of Big Data
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• Now Playing1hr 1minOur Mathematical Universe
• Now Playing1hr 1minThe Human Journey: A Genetic Odyssey
• Now Playing60minLessons From The Presidents: Balancing Work, Love And Play
• Now Playing59minThe Big Picture

Curious Minds: Deepak Chopra

• Now Playing30minPerfect Being, God & Consciousness
• Now Playing28minImplications Of Astrobiology: Understanding Our Unseen Reality
• Now Playing30minCosmic Jazz & Quantum Consciousness
• Now Playing28minBiofield Science & The Future Of Healing
• Now Playing33minEssential Conundrums: What Is & What Matters
• Now Playing39minIs There A Connection Between Quantum Mechanics And Consciousness?
• Now Playing29minRevisiting Evolution Of Species
• Now Playing31minCreative Cosmos
• Now Playing32minThe Knobe Effect: The World As We Are
• Now Playing43minA Beautiful Question, Part 1
• Now Playing38minA Beautiful Question, Part 2
• Now Playing34minThe Non Local Universe
• Now Playing33minUnderstanding Our Unseen Reality
• Now Playing34minNon-Dual Reality
• Now Playing31minConsciousness Is The Way The Universe Turns Nothing Into Something
• Now Playing33minThe Super Human Mind
• Now Playing26minIs Mind/Body Medicine Becoming Mainstream?
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• Now Playing39minThe Garden Of Truth: The Vision And Promise Of Sufism, Islam's Mystical Tradition
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• Now Playing35minCosmic Evolution: Current Understanding Of The Universe
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• Now Playing33minSolution To The Hard Problem Of Consciousness

Deep Time History

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• Now Playing51minThe Age Of Discovery
• Now Playing51minThe Industrial Revolution And Modern Warfare

Destination: Mars

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• Now Playing19minPart 2: The Astronauts
• Now Playing17minPart 3: The Journey
• Now Playing12minPart 4: Surviving On Mars
• Now Playing15minPart 5: Why One Way?

Destination: Moon

• Now Playing15minChapter 1: A Matter Of Gravity
• Now Playing9minChapter 2: Water - The Big Question
• Now Playing14minChapter 3: From Outpost To Colony
• Now Playing11minChapter 4: Surviving....And Thriving?
• Now Playing11minChapter 5: Mars Direct Or Moon First?

Destination: Pluto

• Now Playing8minPart 1: Close Encounters Of The Plutonian Kind
• Now Playing7minPart 2: Pluto Or Bust
• Now Playing12minPart 3: Into The Kuiper Belt
• Now Playing9minPart 4: The Mapmaker's Dream
• Now Playing11minPart 5: Looking Back, Looking Forward
• Now Playing18minPart 7: Behind The Scenes With Alan Stern
• Now Playing10minPart 6: The Shoals Of Pluto
• Now Playing4minPart 9: The Pluto Flyby
• Now Playing5minPart 8: The "Giant Heart" On Pluto
• Now Playing4minPart 10: New Horizons Calls Home
• Now Playing8minPart 11: New Horizons - Pluto Flyby Images
• Now Playing8minPart 12: The Surface of Pluto
• Now Playing12minPart 13: The Right Stuff

Digits

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• Now Playing55minMan Vs. Machine
• Now Playing53minGuardians Of The Web

Doug To The Rescue

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• Now Playing29minLost Dogs of Louisiana
• Now Playing31min13 Days After Hurricane Laura
• Now Playing31minOregon Fire Cats
• Now Playing30minPuerto Rico Rescue Pups
• Now Playing31minChasing Ghost
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• Now Playing26minUrban Hyenas
• Now Playing26minBats Of Malawi
• Now Playing25minDixie Fire Foxes
• Now Playing23minTornado Town

Dynamic Genomes

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• Now Playing50minThe DNA Switch

Eat Like

• Now Playing21minCatherine the Great
• Now Playing19minA Wolf
• Now Playing21minA Viking

Eat Me (Or Try Not To)

• Now Playing50minThe Takeover
• Now Playing50minThe Taste
• Now Playing50minThe Marketing
• Now Playing50minThe Supply Chain
• Now Playing50minThe Impact
• Now Playing50minThe Future

Eclipse Across America

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• Now Playing33minCoast To Coast: Part 2
• Now Playing15minEclipse Planet
• Now Playing25minWitnessing The Eclipse

Ecuador: On The Wild Side

• Now Playing53minFrom The Amazon To The Andean Peaks
• Now Playing53minFrom The Andes To The Galapagos Islands

Engineering the Future

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• Now Playing59minAviation
• Now Playing57minFusion
• Now Playing57minTidal
• Now Playing52minMaritime
• Now Playing54minSolar
• Now Playing53minElectric Vehicles
• Now Playing52minThe Metaverse
• Now Playing52minHyperloop
• Now Playing52minThe Race To Space
• Now Playing52minPerpetual Power
• Now Playing53minTimber Skyscraper

Evolve

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• Now Playing54minSurvive
• Now Playing53minCure
• Now Playing54minProtect
• Now Playing53minMove
• Now Playing53minRestore

FASTER!

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• Now Playing51minThe Highway
• Now Playing50minThe Shopping Mall
• Now Playing50minThe Plastic Container
• Now Playing50minThe Microwave
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Future Cities Asia

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• Now Playing15minRegenerating
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Giants

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• Now Playing53minElephants
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• Now Playing53minSharks
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Growing Up

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• Now Playing20minSky Dive
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• Now Playing20minSky Climb
• Now Playing20minBull Jump
• Now Playing20minSalt Journey
• Now Playing20minLife Choice
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• Now Playing20minReindeer Chase
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HI$TORY With Peter Sagal

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• Now Playing17minCold War
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History By The Numbers

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• Now Playing47minRace To Berlin
• Now Playing47minThe Gender Gap
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• Now Playing47minAir Travel
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• Now Playing47minCats & Dogs
• Now Playing47minGenghis Khan
• Now Playing47minThe Great Migration

History: The Interesting Bits

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Illusions

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• Now Playing13minBrightness And Contrast
• Now Playing11minMotion
• Now Playing10minThe Classics
• Now Playing10minGrouping

Impossible Escapes: Civil War

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• Now Playing33minBreaking Out Of Libby Prison
• Now Playing40minPauline Cushman: Tales Of A Yankee Spy
• Now Playing32minRebel Raid In Vermont
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• Now Playing37minInto The Rebel Swamp

Inside The Mind Of A Con Artist

• Now Playing53minMatthew Cox
• Now Playing52minChristophe Rocancourt
• Now Playing53minJan Lewan
• Now Playing53minFrédéric Bourdin
• Now Playing52minShaun Greenhalgh
• Now Playing52minHelmut Kiener

My Wild Backyard

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• Now Playing11minSouthern California
• Now Playing14minJanos Biosphere Reserve
• Now Playing14minNew York City
• Now Playing9minPatagonia

Nature Through Her Eyes

• Now Playing20minCall Of The Wild
• Now Playing15minWho Tells The Story?
• Now Playing16minClimbing The Mountain
• Now Playing14minOne World

Nature's Hidden Miracles

• Now Playing53minThe Secret Life Of Plants
• Now Playing53minInsects As Super Adapters
• Now Playing53minMicroorganisms, The Invisible Ruler

Normandy, Land Of Warriors

• Now Playing51minRollo The Viking: The Conquest
• Now Playing50minWilliam The Conqueror: The Rise
• Now Playing51minRichard The Lionheart: The Fall

NYC Revealed

• Now Playing25minRats
• Now Playing27minTaxis
• Now Playing25minTrash
• Now Playing25minSewage
• Now Playing25minSteam
• Now Playing25minBridges
• Now Playing25minParks
• Now Playing25minAirports
• Now Playing25minElectricity
• Now Playing24minWater
• Now Playing25minWorld Trade Center
• Now Playing25minPigeons
• Now Playing25minEmpire State Building
• Now Playing24minPorts
• Now Playing25minSkyscrapers
• Now Playing25minFood
• Now Playing25minFDNY
• Now Playing25minGrand Central Terminal
• Now Playing25minRoads
• Now Playing25minRecycling

Oddly Satisfying Science

• Now Playing25minScience on Fire
• Now Playing25minInvisible Impacts
• Now Playing25minWater, Water Everywhere
• Now Playing25minMagnificent Mixtures
• Now Playing25minUp and Atom
• Now Playing25minHot Hot Heat
• Now Playing25minExplosive Elements
• Now Playing26minColorful Conundrums
• Now Playing25minDon't Believe Your Eyes
• Now Playing24minThe Sound of Science

Oops, I Changed the World

• Now Playing52minConditioned
• Now Playing53minBlue Genes
• Now Playing52minThe Beat Goes On
• Now Playing53minFlash Of Success
• Now Playing53minSweet Success
• Now Playing53minAcid Test
• Now Playing52minHair Raising Science
• Now Playing52minDiscovering Drink
• Now Playing52minBigger Bang
• Now Playing52minLaxative Lunacy
• Now Playing53minGet A Grip
• Now Playing53minHow Saran Wrap Saved D-Day
• Now Playing53minSleeping On the Job
• Now Playing53minTeas & Tipple
• Now Playing53minLenin to Lady Gaga

Planet Insect

• Now Playing55minPart One: Small Creatures, Big Lives
• Now Playing55minPart Two: The Next Generation
• Now Playing57minPart Three: Hive Minds

Prescription: Nutrition

• Now Playing18minEpisode 1: Green Revolution
• Now Playing18minEpisode 2: Grain Of Truth
• Now Playing18minEpisode 3: Nature's Candy
• Now Playing16minEpisode 4: Spilling The Beans

Proof Of Concept

• Now Playing51minConceiving Consciousness
• Now Playing50minRandomness & Probability
• Now Playing50minTruth & Logical Paradox
• Now Playing50minThe Infinite

Rebuilding Ancient Rome

• Now Playing5minAra Pacis
• Now Playing4minBaths Of Caracalla
• Now Playing4minCircus Maximus
• Now Playing4minColosseum
• Now Playing3minCuria Julia
• Now Playing6minDomus Aurea Outside
• Now Playing3minForum Of Augustus
• Now Playing5minForum Of Peace
• Now Playing4minHarbor Of Trajan
• Now Playing5minOstia Antica
• Now Playing5minPantheon
• Now Playing4minStadium Of Domitian
• Now Playing4minTemple Of Jupiter
• Now Playing6minRoman Forum
• Now Playing6minTheater Of Pompey

Rescued Chimpanzees Of The Congo With Jane Goodall

• Now Playing53minBuilding The Dream
• Now Playing53minNew Arrivals
• Now Playing53minMaking Friends
• Now Playing53minThe Big Move
• Now Playing53minHope
• Now Playing51minPath to Freedom
• Now Playing50minHeroes
• Now Playing50minExpect the Unexpected
• Now Playing50minIsland Life
• Now Playing50minAll Animals Welcome
• Now Playing51minReady to Go

Royals: Keeping The Crown

• Now Playing50minThe Cousins' War
• Now Playing50minNazi Royals
• Now Playing50minPost-War Amnesia
• Now Playing50minBreaking Tradition
• Now Playing50minRebel Princess
• Now Playing50minThe Pursuit of Normal

Scanning The Nile

• Now Playing53minLost Cities Of The Delta
• Now Playing53minLost Routes To The Pyramids
• Now Playing51minTraces Of The Pharaohs Of Luxor
• Now Playing53minMaterials Convoys: A Pharaonic Task

Science In Archaeology 3.0

• Now Playing51minMaking Objects Speak
• Now Playing53minMaking The Dead Speak
• Now Playing51minMaking Sites Speak
• Now Playing52minMaking The Invisible Speak

Sea Hunters

• Now Playing20minHumpback Gang
• Now Playing20minOrcas vs. Humpback
• Now Playing20minSea Lions vs. Orcas
• Now Playing20minDolphins and Gannets
• Now Playing20minSeals vs. Hyennas
• Now Playing20minWhales vs. Gulls

Secret Lifes of Sharks

• Now Playing14minGreat White Shark
• Now Playing12minHammerhead Shark
• Now Playing15minTiger Shark

Silly Sustainability

• Now Playing18minCan You Power A Lawnmower With Grass?
• Now Playing19minK-Cups/Recycled Plastic into Shoes
• Now Playing15minCardboard Lumber Part 1
• Now Playing20minCardboard Lumber Part 2

Space Greed

• Now Playing11minDeclaring Martian Law
• Now Playing12minSol Ownership: Can a Corporation Own The Sun?
• Now Playing11minTerraforming: Can We Build a Planet B?
• Now Playing12minCarbon Costs: Is Space Exploration Even Worth It?
• Now Playing12minLooting the Moon For Trillions of Dollars
• Now Playing12minAsteroid Mining: Is The Next Gold Rush in Space?
• Now Playing11minEndangered Aliens: Will Humans Trash Space?
• Now Playing12minSpace Cowboys: Who Will Wrangle Asteroids and Save The Earth?
• Now Playing13minArming Space Force
• Now Playing11minAbove the Law
• Now Playing12minToxic Space Factories
• Now Playing12minSuing Our Way to Space
• Now Playing15minWill Satellites Help Us Save or Exploit Earth?
• Now Playing12minSpace Pirates
• Now Playing11minMad Scientists in Outer Space
• Now Playing12minSpace as a Tax Haven
• Now Playing15minGoing So Fast Time Slows Down
• Now Playing14minSpace & Shelter
• Now Playing13minWorld Wide Wifi
• Now Playing14minStrange Space Recipes

Space Phenomena

• Now Playing49minAlien Planets
• Now Playing48minBlack Holes

Space Probes!

• Now Playing53minInner Planets
• Now Playing53minOuter Planets
• Now Playing30minVoyager: The Grand Tour
• Now Playing26minCassini and The Crown Jewel
• Now Playing27minRed Rovers
• Now Playing23minPluto's Heart
• Now Playing20minOur Inner Circles of Hell
• Now Playing24minFuture Missions

Speed

• Now Playing50minAcross Oceans
• Now Playing53minAcross Continents
• Now Playing54minInto the Skies
• Now Playing54minInto Space

Stephen Hawking's Favorite Places

• Now Playing27minPart 1
• Now Playing28minPart 2
• Now Playing28minPart 3

Suppressed Science

• Now Playing26minMerging Man & Machine
• Now Playing26minThe Suppressed Science Of Psychedelics
• Now Playing25minRace: Science, Social Construct, or Both?
• Now Playing24minWeather Control: The Debate Over Geo-Engineering
• Now Playing23minWeather Control: The Debate Over Geo-Engineering
• Now Playing22minGenetic Editing
• Now Playing22minAlternative Energy Sources
• Now Playing22minTheories Of Everything

Tech Toys, Part 1

• Now Playing26minTechploration
• Now Playing26minFuture Now
• Now Playing23minTransport And Design
• Now Playing23minInnovation Lift Off
• Now Playing23minDesign Inspired
• Now Playing23minMultilevel Mobility
• Now Playing23minTransport Tech
• Now Playing23minEdge Of Elevation
• Now Playing23minShutter Speed
• Now Playing23minMachines In Motion
• Now Playing23minSpeed Of Sound
• Now Playing23min4 Wheels Of Wonder
• Now Playing23minReady, Set, Go
• Now Playing23minFace Of Innovation
• Now Playing23minSky's The Limit
• Now Playing23minIconic Innovation
• Now Playing23minDriving Into The Future
• Now Playing23minElectric Revolution
• Now Playing23minTransport Through Time
• Now Playing23minElectrified
• Now Playing23minShift In Transport
• Now Playing23minSpeed + Efficiently
• Now Playing23minForm Meets Function
• Now Playing23minTomorrow's Transport
• Now Playing23minThe Innovation Game

Tech Toys, Part 2

• Now Playing23minDevelop. Design. Print.
• Now Playing23minFour Eyes, Four Wheels
• Now Playing23minTechnology Refueled
• Now Playing23minUrban Electric
• Now Playing23minSpeed + Sound
• Now Playing23minTransport Inspired
• Now Playing23minTaking Flight
• Now Playing23minJet Power
• Now Playing23minTilt And Kick
• Now Playing23minFly And Hover
• Now Playing23minTransport + Games
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• Now Playing23minElectrified
• Now Playing23minLand + Sea
• Now Playing23minFlying High
• Now Playing22minRoaming In Technology
• Now Playing22minTwo, Three, Four Wheels
• Now Playing22minSuper Car, Super Bike
• Now Playing22minLand, Sea, And Power
• Now Playing22minThe Future Of Transport
• Now Playing22minSpeed Meets Design
• Now Playing22minDrifting In Style
• Now Playing22minOff Road Power
• Now Playing22minThe Flying Car
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Terror!

• Now Playing44minThe Hotel: Jerusalem, 1946
• Now Playing45minThe Bar: Algiers, 1956
• Now Playing44minThe Games: Munich 1972
• Now Playing45minThe Station: Bologna, 1980
• Now Playing45minThe Ship: USS Cole, 2000
• Now Playing45minThe Island: Norway, 2011

The History Of Food

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• Now Playing34minThe Agricultural Revolution
• Now Playing34minFermentation, Preservation and Exploration
• Now Playing28minThe Industry of Food
• Now Playing32minThe Future of Food

The History of Home Narrated by Nick Offerman

• Now Playing1hr 3minThe Foundations of Home - Structure and Shelter
• Now Playing54minThe Hall, the Kitchen, the Dining Room, the Living Room
• Now Playing1hr 4minThe Second Story - Private Life

The History Of Home Presents

• Now Playing24minThe Rich & The Royal
• Now Playing25minHearst Castle
• Now Playing24minHampton Court Palace
• Now Playing24minMonticello

The Humboldt Current

• Now Playing52minGenesis
• Now Playing52minRenewal
• Now Playing52minArrival

The Lightbulb Moment

• Now Playing22minLike Button: The Unintended Consequences Of The Facebook Like Button
• Now Playing25minCubicle: How The Cubicle Became Universally Hated
• Now Playing23minBarcode: How The Barcode Shaped Our Modern Economy
• Now Playing25minFlorida: How Real Estate Rogues Invented Florida As We Know It
• Now Playing23minMauve: The Fake Color That Made Our Modern World
• Now Playing24minVanilla: The Bean That Shaped The Future Of Food
• Now Playing24minWi-Fi: The Hollywood Actress Who Laid The Groundwork For Wi-Fi
• Now Playing24minStreaming: The Invention That Revolutionized Streaming Video
• Now Playing23minInterstate: How The Interstate Connected And Divided America
• Now Playing28minEdison: How Edison Reinvented Invention

The Secret Lives Of Big Cats

• Now Playing36minThe Secret Lives Of Tigers
• Now Playing27minThe Secret Lives Of Snow Leopards
• Now Playing30minThe Secret Lives Of Pumas
• Now Playing33minThe Secret Lives Of Lions
• Now Playing37minThe Secret Lives Of Leopards
• Now Playing33minThe Secret Lives Of Jaguars
• Now Playing29minThe Secret Lives Of Cheetahs

The Secrets To Civilization

• Now Playing52minBronze Age Catastrophe
• Now Playing52minCities And Empires
• Now Playing53minEmpire And Epidemics

The Tracker's Diary: Bears Of Katmai

• Now Playing28minThe Last Frontier
• Now Playing22minFish Like a Bear
• Now Playing24minA Working Ecosystem
• Now Playing25minThe Wolf and The Storm
• Now Playing25minNeighbors, Old and New
• Now Playing22minNo Place Like Home

The Vikings

• Now Playing46minOrigin of the Vikings
• Now Playing45minEarly Viking Society and Religion
• Now Playing45minThe Ships of the Vikings
• Now Playing45minWeapons of the Vikings

The World Of Bridges

• Now Playing27minChina
• Now Playing27minWales
• Now Playing27minIndia
• Now Playing27minZimbabwe

The Year That Rocked The World

• Now Playing53min1977
• Now Playing53min1981
• Now Playing53min1989
• Now Playing53min1997
• Now Playing53min2004

Tycoons

• Now Playing53minUSA
• Now Playing53minRussia
• Now Playing53minChina

Underwater Wonders Of The National Parks

• Now Playing16minDevils Hole
• Now Playing14minMontezuma Well
• Now Playing24minUSS Arizona: Part 1
• Now Playing19minUSS Arizona: Part 2
• Now Playing13minBuck Island
• Now Playing13minLake Mead
• Now Playing12minYellowstone

Underworld

• Now Playing53minGreat Britain
• Now Playing53minGibraltar
• Now Playing53minSlovenia
• Now Playing53minBelize
• Now Playing53minChina

What Went Wrong?

• Now Playing47minThe Grenfell Tower Fire
• Now Playing49minThe Challenger Shuttle Disaster
• Now Playing47minThe Concorde Air Crash
• Now Playing46minThe Disappearance Of Malaysia Airlines MH370

Specials, Part 1

• Now Playing24min2023: A Space Odyssey
• Now Playing25minAI Tipping Point
• Now Playing20minAmerica's World War I Centennial
• Now Playing1hr 16minAsteroids: The Source Of Life?
• Now Playing34minAttack Of The Zombie Fungus
• Now Playing1hr 33minBessie Coleman: Queen Of The Skies
• Now Playing30minBirth Of The Solar System
• Now Playing30minConscious Capitalism
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• Now Playing38minCornfield Shipwreck
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• Now Playing45minEclipse: Science And Awe
• Now Playing10minEvolution Of Exercise
• Now Playing42minFighting For Lincoln: The Wide Awakes
• Now Playing1hr 30minGoing Circular
• Now Playing18minHenry V: Leader For The Ages
• Now Playing1hr 47minHeval
• Now Playing23minInfinite Rainbows
• Now Playing19minJason Silva: The Road To The Singularity
• Now Playing41minJFK: Fact & Fable
• Now Playing51minLions Rule
• Now Playing49minLittle Cats
• Now Playing60minLiving With Lions

Specials, Part 2

• Now Playing18minMars: The Journey
• Now Playing46minMathemagics
• Now Playing51minMeet The Mustelids
• Now Playing28minMIA: Hunt For A WWII Plane
• Now Playing51minMiniverse
• Now Playing25minNever Home Alone: The Wildlife Of Kitchens, Bathrooms, And Beyond
• Now Playing24minOperation Lusty: Hunt For The First Nazi Jet
• Now Playing19minOur Violent Sun
• Now Playing53minPeru: Sacrifices In The Kingdom Of Chimor
• Now Playing52minPompeii: Buried Secrets Of The Villa Giuliana
• Now Playing53minPrehistoric Worlds
• Now Playing44minPutin And The Oligarchs
• Now Playing53minPyramids Builders: New Clues
• Now Playing21minRapidly Evolving Human With Spencer Wells
• Now Playing1hr 32minRed Elvis: The Cold War Cowboy
• Now Playing53minRescued Chimpanzees Of The Congo With Jane Goodall Special
• Now Playing51minReturn To The Moon
• Now Playing53minSagrada Familia: The Gaudi Revolution
• Now Playing56minScanning The Pyramids
• Now Playing23minSchool For Sommelier
• Now Playing49minSeals - Clowns Of The Sea
• Now Playing22minSearch For Earth's Lost Moon
• Now Playing53minSpace Robot Revolution
• Now Playing20minSt. Patrick's Greatest Gift
• Now Playing28minThe Apollo Moon Landings

Specials, Part 3

• Now Playing24minThe Hunt For Dark Matter
• Now Playing25minThe Hunt For The Slave Ship Guerrero
• Now Playing53minThe Last Persian Shah
• Now Playing56minThe Lucy Mission: Origins Of The Solar System
• Now Playing52minThe Mystery Of The Cosquer Cave
• Now Playing53minThe Mystery Of The Giant Birds
• Now Playing52minThe Origami Code: Scientists Uncover The Power Of Folding
• Now Playing16minThe Rise & Fall Of T-Rex
• Now Playing28minThe Rise Of Lincoln
• Now Playing50minThe True Story of Pirates
• Now Playing53minThe Untold Story Of The Vatican
• Now Playing56minTop Science Stories Of 2016
• Now Playing53minTop Science Stories Of 2017
• Now Playing1hr 20minTop Science Stories of 2018
• Now Playing1hr 8minTop Science Stories of 2019
• Now Playing1hr 4minTop Science Stories of 2020
• Now Playing1hr 8minTop Science Stories of 2021
• Now Playing1hr 3minTop Science Stories Of 2022
• Now Playing1hr 2minTop Science Stories Of 2023
• Now Playing53minVikings: The Lost Kingdom
• Now Playing21minViruses: Destruction And Creation
• Now Playing29minWhat Animals See
• Now Playing19minWhat is Reality? with David Eagleman
• Now Playing53minWho Killed The Neanderthal?