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Scientists Reveal How Time Travel Is Actually Possible

AdultsHistoryHumanScience...
Is it actually possible to travel through time? Scientists say "Yes", but what does that actually mean?

Can you solve the Big Bang riddle? - James Tanton

AdultsHistoryHumanScience...
It’s moments after the Big Bang and you’re still reeling. You’re a particle of matter, amidst a chaotic stew of forces, fusion, and annihilation.

The Freshwater Paradox

AdultsAnimalsLifeNature...
Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.

The Freshwater Paradox

AdultsEducationLifeNature...
Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.

What Happens if the Moon Crashes into Earth?

AdultsEducationScienceWorld...
Today we are answering an age-old very scientific and important question: What if the moon crashes into earth? It’s more interesting and weird than you probably think. Let's start with the basics: Why isn't the Moon on its way to crash into us already?

David Attenborough encounters the most DANGEROUS plant in the desert!

AdultsEducationNatureTravel...
All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights.

Which animal has the best eyesight? - Thomas W. Cronin

AdultsAnimalsNatureScience
Explore the incredible diversity of eyes and vision in the animal kingdom, and find out which creature has the best eyesight.

Is Soil Alive?

AdultsEnvironmentLifeNature...
Soil doesn't seem like it's "alive", yet it functions like a living thing in lots of key ways.

What’s in the Trunk? with Sir David Attenborough | The Green Planet | BBC Earth

AdultsEducationLifeNature...
Don’t try this with your normal headphones, but you can actually listen to the inside of a tree! Listen and watch along as Sir David Attenborough discovers the amazing things going on inside our trunky friends.

How DUBAI Actually Controls its Weather

AdultsScienceWeatherWorld...
Wouldn't it be amazing to be able to control the weather? You could give yourself beautiful sunny days whenever you wanted or decide you needed some rain to help water crops for farmlands. Well in today's new video you will learn about the insane and fantastic way Dubai has taken control over the city's weather!

The Most Powerful Computers You've Never Heard Of

AdultsHistoryScienceTechnology
Analog computers were the most powerful computers for thousands of years, relegated to obscurity by the digital revolution.

Sand Dunes Shouldn’t Exist (Here’s Why They Do)

AdultsLifeNatureWorld...
How can sand, blown by the wind, form such intricate and beautiful patterns as ripples and dunes? The answer is a surprising secret of self-organization.

Why The Shortest Day Of The Year Isn't The Coldest

AdultsHistoryHumanWorld...
The way we experience seasons don't necessarily line up with how they're technically defined - here's why.

The Creation Of The Universe | Universe | BBC Earth

AdultsHistoryScienceSpace
This is the story of creation, as told by science.

You Are Immune Against Every Disease

AdultsBiologyHumanScience...
You are not a person, you are a planet, made of roughly 40 trillion cells. There is so much of you, that if your cells were human-sized, you would be as big as 20 Mount Everests.

Most People Don't Know How Bikes Work

AdultsConstructionCreativityScience...
Why are bicycles stable? The most common answer is gyroscopic effects, but this is not right. This video was sponsored by Kiwico.

How Tutankhamun Got His Gold | Lost Treasures of Egypt

AdultsHistoryHumanScience...
How Tutankhamun Got His Gold | Lost Treasures of Egypt

The Snowflake Mystery

AdultsLifeNatureScience...
Dr Ken Libbrecht is the world expert on snowflakes, designer of custom snowflakes, snowflake consultant for the movie Frozen - his photos appear on postage stamps all over the world.

Why The Ocean Needs Salt (But Has None)

AdultsLifeNatureScience...
Our oceans don’t technically contain salt, but the ions salt is made of play a critical role in planet-wide processes that make the Earth habitable.

What are gravitational waves? - Amber L. Stuver

AdultsPhysicsScienceSpace
In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they sent a vibration across the universe at the speed of light that was picked up by the LIGO detector. So what are these ripples in space? Amber L. Stuver explains.

How Imaginary Numbers Were Invented

AdultsHistoryHumanScience...
A general solution to the cubic equation was long considered impossible, until we gave up the requirement that math reflect reality.