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When Whales Could Walk
S51 Ep1 | 53m 31s

Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.

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Easter Island Origins
S51 Ep2 | 53m 17s

New evidence reveals the real story of Easter Island and the builders of its stone heads.

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Building the Eiffel Tower
S51 Ep3 | 53m 29s

Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.

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Hunt for the Oldest DNA
S51 Ep4 | 53m 10s

Follow the quest to recover DNA millions of years old for the very first time.

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A.I. Revolution
S51 Ep5 | 53m 30s

Explore the promise and perils of new A.I. technologies.

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Great American Eclipse
S51 Ep6 | 53m 34s

Explore the spectacular cosmic phenomenon of a total solar eclipse.

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Secrets in Your Data
S51 Ep7 | 53m 40s

Find out who’s using your data and what you can do about it.

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Decoding the Universe: Cosmos
S51 Ep8 | 53m 38s

Explore big discoveries that have revolutionized our understanding of the universe.

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Putting Energy to Use Old
2m 14s

Society has been revolutionized by our ability to convert energy from one form to another.

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Solving the Storage Problem
2m 26s

Finding better ways to store electricity is critical for a sustainable energy future.

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Electromagnetic Spectrum
44s

Satellites use portions of the electromagnetic spectrum that are invisible to our eyes.

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CHNOPS: Ingredients for Life
2m 36s

The basic building blocks for life are made of just six elements.

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Rare Earth Elements
4m 17s

David Pogue learns about rare earth elements.

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Flu Probabilities
1m 53s

What is the chance a new flu strain will jump from birds to people?

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Fertilizing the Amazon
3m 27s

Nutrient-rich dust from the Saharan Desert blows across the ocean to the Amazon.

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How the 1918 Flu Infected People
25s

The 1918 flu virus infects deep in the lungs, which may have made it more deadly.

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What Made the 1918 Flu So Deadly?
1m 28s

The 1918 flu killed at least 50 million people, more than died from battle in World War I.

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35s

CloudLab_Megastorm_01

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CloudLab_Megastorm_02
31s

CloudLab_Megastorm_02

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CloudLab_Megastorm_03
1m 41s

CloudLab_Megastorm_03

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CloudLab_Megastorm_04
1m 43s

CloudLab_Megastorm_04

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CloudLab_Megastorm_05
1m 4s

CloudLab_Megastorm_05

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CloudLab_Megastorm_06
40s

CloudLab_Megastorm_06

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CloudLab_Megastorm_07
3m 7s

CloudLab_Megastorm_07

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Life on Europa?
2m 25s

Europa’s icy surface may cover a salty ocean. Could life lurk in the depths?

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The Making of a Cloud Old
3m 10s

Visit NOVA Labs: pbs.org/nova/labs

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Why So Many Cloud Types?
3m 35s

Visit NOVA Labs: pbs.org/nova/labs

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Clouds and Weather
3m 21s

Visit NOVA Labs: pbs.org/nova/labs

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Severe Storms
3m 37s

Visit NOVA Labs: pbs.org/nova/labs

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The Climate Wild Card
3m 2s

Visit NOVA Labs: pbs.org/nova/labs

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Chemotherapy Goes Small
1m 17s

Scientists are using nanoparticles to make more effective chemotherapy treatments.

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4s

Visit NOVA Labs: pbs.org/nova/labs

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1m 2s

Visit NOVA Labs: pbs.org/nova/labs

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Starling 8
44s

David Pogue checks out swarming robots.

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Wheat Straw Plastic
1m 4s

A car company is reducing petroleum use by using wheat straw in their plastic.

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Solar Leaves
53s

These solar "leaves" can produce more electricity than traditional solar panels.

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Battle Jacket
1m 49s

This self-sealing material prevents fuel tanks from leaking if they're shot.

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Oobleck
40s

Non-newtonian fluids are like a liquid and solid in one.

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Magnetic Oobleck
54s

This fluid becomes more like a solid when a magnetic field is applied.

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Life-Saving Non-Newtonian Fluids
1m 43s

These materials are used in shock absorbers and to make buildings earthquake resistant.

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Silicon Transistors
50s

Silicon is a semiconductor, and makes an excellent transistor in a computer chip.

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Shrinking Chips
1m 6s

Silicon transistors allow engineers to shrink a transistor to the size of a few atoms.

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Pizza Transistor
1m 34s

Researchers are using nano-wires to cram more transitors into a computer chip.

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Graphene
1m 11s

A sheet of graphene one atom thick still conducts electricity.

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Shape Memory Alloys
32s

These metals "remember" their original shape and revert to it when heated.

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Jellyfish
38s

These buoys can move through the ocean for months with little more than a battery.

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Bird Wings
1m 56s

Some day shape memory alloys could help build airplane wings that bend.

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Invisibility Cloak
1m 22s

Researchers are bending microwaves to make an invisibility cloak device from radar.

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Mild Traumatic Brain Injury
3m 36s

Neuroscientists are beginning to understand what happens when a person receives a concussi

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Eye Robot
1m 51s

Researchers guide this non-mechanical microrobot through the eye using external magnetics.

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Corkscrew Robot
32s

Researchers designed a tiny corkscrew tail for this robot.

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Slow Goldfish
1m 39s

Seeing the goldfish in glycerin shows how water feels to a tiny robot.

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Bee Toxin
1m 31s

The microscopic nanodevices are designed to carry the bee toxin safely through the body.

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Sneak Peek: Making Stuff Faster
5m 6s

David Pogue learns the secrets to running faster.

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David’s Race
1m 28s

What has UPS built into its trip-route algorithm to cut fuel and reduced carbon emissions?

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Steffen’s Plan
1m 59s

Steffen's plan cut down on boarding time by over 50 percent.

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Traveling Salesman
1m 21s

Just 25 drop-off points means more than 15 trillion, trillion possible routes.

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New York City One Year Later: Telecommunications
3m 14s

After Sandy nearly wiped out landlines in lower Manhattan, Verizon rebuilds its network.

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Pitcher Plant
1m 48s

This pitcher plant-inspired nonstick technology can be used for anti-icing coatings.

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SLIPS
1m 1s

The pitchers' tube-shaped leaves have microscopic bumps that hold a thin layer of water.

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Hagfish
51s

Researchers are interested in the eel-like hagfish, which produces a slimey goo.

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Hagfish Defense
1m 36s

The hagfish protects itself by releasing a mass of slime that chokes the predator.

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Slime Clothes
1m

The mucin molecule is made up of a protein backbone with side chains of sugar.

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Virus Battery
2m 21s

Belcher has genetically engineered a virus to get its coat to bond with tiny metal bits.

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Robot Arm
56s

Clunky metal robotic arms can be dangerous for humans to work near.

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Elephant Arm
1m 22s

The arm is controlled by inflating an accordion-like tube on one side to bend the arm.

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FinGripper
55s

Festo designed its FinGripper based on the movements of a fish tail.

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Sail Wing
1m 2s

Sailboats can actually fly faster than the speed of the wind in their wings.

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Hydrofoil
1m 1s

The hydrofoil blade at the bottom of the keel is curved.

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Chicken Feathers
1m 56s

When you heat chicken feathers to 750 degrees F they become over 200 times more absorbent.

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KillaCycle
48s

Lithium batteries hold more energy because smaller atoms allow more flowing electrons.

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How Batteries Work
49s

To create an electricity-powered vehicle, you need a battery that holds enough energy.

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Muon Detection
1m 52s

When the muons hit denser material, they are deflected and their angle changes.

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Muons
1m 25s

Early nuclear detectors couldn't pick-up radioactive emissions shielded by lead or steel.

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Plants White
2m 11s

Lead researcher June Medford says her lab programmed the plants by taking control of their

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DNA Patch
1m 19s

The patch is made up of thin polymer films embedded with a DNA vaccine.

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DNA Vaccine
38s

For DNA vaccines, researchers extract the particular genes that code for anitgen.

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Earthquake Test
2m 3s

By retrofitting this building with strong wooden beams that have a bit of give, researcher

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David Drives
1m 27s

Researchers measure a driver's brain activity responding to different driving situations.

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Shelley
2m 7s

Self-driving cars use multiple technologies to “see” the road and obstacles along the way.

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Swarming Robots
1m 31s

These swarming robots could help us in the future with search and rescue.

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Sneak Peek: Making Stuff Wilder
6m 14s

Host David Pogue learns how hagfish slime might be used in the clothing of the future.

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Levitation
50s

When things get REALLY cold, the laws of physics appear to change.

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Superconductor
1m 47s

Using helium to cool superconductor electricity lines can greatly reduce energy lost.

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Animal Robot 1
2m 35s

For the last few years, Raibert has been applying what he's learned to solve a problem.

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Animal Robot 2
2m 2s

Petman has evolved into Atlas, which has even more mobility.

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Therapeutic Hypothermia
1m 11s

Some patients previously thought dead have been revived with little brain damage.

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Therapeutic Hypothermia 2
1m 7s

The procedure that saved her life is called therapeutic hypothermia.

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Therapeutic Hypothermia 3
1m 43s

They survived because they were able to shut off their body's demand for oxygen.

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Therapeutic Hypothermia 4
2m 1s

This innovation could revolutionize ER medicine and save thousands of lives.

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Soft-Story Buildings
7m 36s

Engineers are working to prevent buildings from collapsing during earthquakes.

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GM Plants
1m 27s

Genetically modified plants.

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Non-Newtonian Gel
1m

Non-Newtonian Gel.

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Microneedle
1m 41s

The microneedle could save millions of lives around the world.

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How Solar Cells Work
33s

Go inside a silicon-based solar cell.

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Solar Power’s Promise
51s

Solar power is the poster child for transforming our energy system.

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Cockatoo Excerpt
1m 30s

Cockatoo solves lock puzzle

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Dogs’ Sense of Time
1m 28s

Dogs' keen sense of smell seems to help them measure the passing of time.

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RNAi Explained
1m 47s

An immune response recently discovered in plants and some animals is called RNAi.

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Dolphin Mirror
3m 18s

Research suggests that dolphins can recognize themselves in the mirror.

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Flatfish Larvae
51s

Flatfish larvae require light to swim upright.

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Formation of a Typhoon
1m 34s

Formation of a Typhoon

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The Mother of Hubble
2m 28s

Astronomer Nancy Roman worked on Hubble's design and development for more than 25 years.

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Lethal Seas Excerpt 1
4m 11s

Lethal Seas Excerpt 1

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Lethal Seas Excerpt 2
1m

Lethal Seas Excerpt 2

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Lethal Seas Excerpt 3
35s

Lethal Seas Excerpt 3

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Lethal Seas Excerpt 4
51s

Lethal Seas Excerpt 4

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Monument Rocks 1
1m 18s

This video explores Monument Rocks.

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Monument Rocks 2
1m 48s

This video explores Monument Rocks.

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Exuma Cays 1
1m 26s

This video explores Exuma Cays.

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Exuma Cays 3
28s

This video explores Exuma Cays.

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Exuma Cays 4
3m 22s

This video explores Exuma Cays.

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Gooseberry Falls 1
57s

This video explores Gooseberry Falls.

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Gooseberry Falls 2
24s

This video explores Gooseberry Falls.

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Gooseberry Falls 3
1m 6s

This video explores Gooseberry Falls.

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Gooseberry Falls 4
1m 1s

This video explores Gooseberry Falls.

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Mount Kilauea
1m 30s

This video explores Mount Kilauea.

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Grand Canyon 1
1m 19s

This video explores the Grand Canyon.

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Grand Canyon 2
1m 5s

This video explores the Grand Canyon.

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Grand Canyon 3
58s

This video explores the Grand Canyon.

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Grand Canyon 4
19s

This video explores the Grand Canyon.

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Rock Time Capsules
1m 18s

This place is a paradise for geologists and one of our national treasures. It is, of cour

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The Sandstone Top of the Canyon
1m 15s

This is not the easiest thing to do—especially in a 100 degree heat—but it’s worth it.

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Fossil-Filled Limestone
54s

340 million years ago, a warm shallow sea covered all of the American Southwest.

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The Grand Canyon’s Oldest Rocks
19s

“This rock is more than 4000 feet below the rim of the canyon."

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From Lava to Land
2m 14s

So how did North America and its fellow continents get started?

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Semi-Precious Pebbles
57s

Where you find agates, volcanoes—the source of the gas bubbles—are usually not far way.

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Five Steps of Volcanic Rock
26s

These falls are the record of a series of volcanic eruptions that happened in this area.

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Tearing North America Apart
1m 1s

A map of the Midwest of the United States shows the distribution of basalt flows.

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Fossilized Sand Dunes
1m 15s

This is Zion Canyon. Its 2000-foot sandstone cliffs are among the tallest of their kind.

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Volcanoes of Sand
1m 33s

What we found were strangely regular circles in the sandstone.

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Rockies 2.0
2m

But why is it that these layers that were once horizontal are now standing on their heads?

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Manhattan Schist
1m 13s

All over the city you can see outcrops of bedrock. It’s called Manhattan schist.

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From Mud to Rock
1m 36s

It’s the tough Manhattan schist rock that’s allowed the city’s skyscrapers to soar.

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Manhattan Skyline
52s

It's actually the geology that gives this very American city its very particular look.

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New York’s Mountains
1m 13s

Today these steel and concrete giants dominate New York’s skyline.

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Finding Stromatolites
1m 23s

We’re looking for one of the oldest organisms on our planet.

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Stromatolites Were Kings
1m 5s

When the sand is swept away the stromatolites are vulnerable to the seaweeds.

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A Fourteen-Foot Fish From Kansas
1m 38s

14-foot-long fish in Kansas? Name me a living 14-foot fish.

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Hell Creek Formation
1m 10s

These are the North Dakota Badlands… thousands of square miles of arid gullies and buttes.

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No Dinosaurs Above the Line
2m

Tyler Lyson is a paleontologist who’s been digging up dinosaur fossils in these badlands.

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Mammal Survivors
1m 40s

This amazing fossil leaf just popped out of this rock.

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Dinosaur Fossils
1m 53s

In an empty corner of Utah lies a very special landscape.

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King of Gore
2m

When you put flesh on the bones of Lythronax, it looks a lot like T. rex.

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Driving Dinosaur Diversity
1m 47s

So what is it with all this diversity?

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Pangea
56s

The rocks here in Zion bear witness to a traumatic phase in our continent’s history.

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Making Granite From Volcanic Rock
2m 16s

It would take dramatic transformations to turn volcanic islands into the first continents.

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A Massive Volcanic Eruption
1m 14s

This rock is what remains from one of the biggest volcanic eruptions ever.

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Treasures Metals Eiffel Tower
2m 9s

An excerpt from "Treasures of the Earth: Metals"

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Secrets of the Sky Tombs
28s

Evidence discovered in the world’s highest tombs reveals ancient rituals and beliefs.

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Sea Change: Bounty in the Gulf of Maine
53m 30s

Discover the lasting impact of how international trade forever changed the Gulf of Maine’s bounty.

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