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Why Do All YouTube Videos Look Alike?

AdultsCreativityEducationMedia...
Many crustaceans from all sorts of starting points evolve to end up looking similar, likely due to outside pressures. That’s sort of like what happens with YouTube videos.

The Paradox of an Infinite Universe

AdultsEducationScienceSpace...
What is outside of the universe? We know that the universe had a beginning 14 billion years ago and that it has been expanding ever since.

3 Mysteries of the Universe

AdultsEducationScienceSpace
We're still in the dark about what 95 percent of our universe is made of — and the standard model for understanding particle physics has hit a limit.

How Does Mail Get Delivered?

YouthFactsSocietyWork...
Are you wondering: How does mail get delivered? This question came from Violet, a student from Canada.

What Happens AFTER Nuclear War?

AdultsEducationScienceWorld...
This video was made possible through a grant by Open Philanthropy.

Counting Fire Trucks

KidsEducationMathMusic
This catchy count to 10 song is perfect for teaching kids about fire trucks and counting!

Ancient Animal Crossing

KidsAnimalsHistoryNature...
Join Squeaks and Jessi as they learn about a time when lots of animals switched places -- like bears, sloths, armadillos, and more.

The Art Supplies Song

KidsArtFactsHow-to...
Learn why it's important to take care of your art supplies.

What's The Smallest Animal On Earth?

YouthAnimalsEducationScience
Are you wondering: What's the smallest animal on Earth? This question came from Brady, a student from Canada.

Why Climbers Trust Rubber With Their Lives

AdultsEducationLifeScience...
Why is rubber so “sticky”? Why does rubber consistently have one of the highest coefficients of friction?

Why Does Everything Decay Into Lead

AdultsEducationHistoryScience...
If you look at a copy of the periodic table, you might notice that basically every element after lead is labelled as radioactive.

Let's Get Our Eyes Checked

KidsHealthSelfWellness...
Come along with Caitie as she gets her eyes checked at the optometrist's office - that's a fancy word for eye doctor!

6 Tips on Being a Successful Entrepreneur | John Mullins | TED

AdultsEducationHumanLife...
Sometimes, you need to break the rules to innovate — but which ones? Entrepreneurship professor John Mullins shares six counter-conventional mindsets for entrepreneurs looking to think strategically, navigate challenges and change the world.

The Opposite Song

KidsFunLanguageMusic...
This is The Opposite Song! It might be short, it might long! Learn about opposites in this fun video.

Primitive Technology: Crab and Fish Trap

AdultsConstructionCreativityEducation...
I made a fish trap from cane and tested it over the course of a year catching various aquatic animals.

Let's Learn Winter Sports

KidsHow-toMovementSports...
Join Caitie as she tries skiing, ice skating, and her favourite activity of all, snowshoeing.

How Do We Get Energy? (Chemical Reactions): Crash Course Biology #26

AdultsEducationScienceBiology
Cells need energy to power the chemical reactions that keep their microscopic cities running, and most of that energy comes from a chemical called ATP.