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Vacation Or Conservation (Of Mass)

Youth Physics
In this episode Sabrina shows us how conservation of mass actually works with sugar and water.

The Biggest Misconception in Physics

Adults Physics
A huge thank you to Prof. Geraint Lewis, Prof. Melissa Franklin, Prof. David Kaiser, Elba Alonso-Monsalve, Richard Behiel, Prof. Leo Stein and Jakob Schwintenberg for their invaluable expertise and contributions to this video.

The Largest Object in the Universe Breaks the Laws of Physics

Adults Physics
In March 2025, astronomers announced the "largest cosmic structure discovered to date". They called it Quipu. And Quipu is just the latest entry in a list of structures that are too big for cosmologists to explain without revisiting one of the most fundamental assumptions they have about the universe.

The Hole In Relativity Einstein Didn’t Predict

Adults Physics
Why does energy disappear in General Relativity?

Something Strange Happens When You Trust Quantum Mechanics

Adults Physics
A massive thank you to Dr. Andrew Mitchell for all his help and expertise.

Magnets & Electricity

Kids Physics
This video describes some helpful facts about magnetism and electromagnets that you might not know.

The Great Escape

Youth Physics
Sabrina talks about gravity, escape velocity, and how gravity works between two objects.

Physicist Brian Cox explains quantum physics in 22 minutes

Adults Physics
Quantum mechanics and quantum entanglement are becoming very real. We're beginning to be able to access this tremendously complicated configuration space to do useful things.

The Science Of Slipperiness

Adults Physics
We've all had an experience where soap has made a wet thing slippery, but...why?

Surprise: There was a universe before the Big Bang | Ethan Siegel

Adults Physics
"Asking the question of, where did the entire universe come from, is no longer a question for poets and theologians and philosophers.

Inertia Challenge

Youth Physics
Wow your friends and colleagues with these simple inertia tricks!

What Would Happen If We Just Kept Digging?

Adults Physics
The deepest hole we've ever been able to dig is just 0.2 percent of the way to the center of the Earth. What would we encounter if we could drill all the way?

Mysterious Water Suspension

Youth Physics
The goal is to suspend the water in the container upside down, without any glue or other adhesives.

What Actually Happened To Amelia Earhart?

Adults Physics
The mistakes of Amelia Earhart’s final flight, and the physics that could have saved her.

The Strange Physics Principle That Shapes Reality

Adults Physics
The single principle that underpins all of physics.

Debunking the Nuclear-Powered Manhole Cover

Adults Physics
In 1957, a high-speed camera caught a cast iron cap moving at 66 kilometers per second.

We Traveled Back in Time. Now Physicists Are Angry.

Adults Physics
Time travel is possible. In fact, you’ve been doing it since the day you were born.

Down To Earth

Youth Physics
In this episode of Crash Course Kids, Sabrina talks about why things on the bottom of the Earth, don't just fall off into space. Plus... PENGUINS!

Defying Gravity

Youth Physics
Sabrina talks about gravity and explains that when we talk about gravity pulling things down, what we really mean is gravity is pulling things TOWARD the Earth.

Part(icles) Of Your World

Youth Physics
In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles.

Why the Three-Body Problem is Unsolvable*

Adults Physics
What is the THREE-BODY PROBLEM? What does it have to do with the award-winning book of the same name?