Skip to main content

Up Next

Can you push a spacecraft with light?

Can you push a spacecraft with light?

Season 1 Episode 14
4:35
The Black Hole Death Problem

The Black Hole Death Problem

Season 1 Episode 15
4:48
Five Weird Ways to Put Out a Candle

Five Weird Ways to Put Out a Candle

Season 1 Episode 16
5:04
Quantum Cryptography Explained

Quantum Cryptography Explained

Season 1 Episode 18
7:47
Is energy always conserved?

Is energy always conserved?

Season 1 Episode 19
5:16
How does laser cooling work?

How does laser cooling work?

Season 1 Episode 21
5:27
How science explains monster waves

How science explains monster waves

Season 1 Episode 23
5:49
Back to Show
Physics Girl

Are perpetual motion machines possible?

Season 1 Episode 11

A wheel that spins forever; a bird that never quenches its thirst; a clock that never stops ticking, an endless source of free energy. These are but the dreams of inventors striving to make perpetual motion machines, machines that can work forever without any energy input. Are these machines possible without violating the laws of physics? No.

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Season
Inside the World's Largest Science Experiment
14:01
Dianna visits CERN and dives into the fundamental question: what are particles?
How the Edge of Our Galaxy Defies Known Physics
10:36
How is it possible that you can't see 95% of the universe?
Why This Stuff Costs $2700 Trillion Per Gram
10:00
There’s a factory in Europe that makes antimatter!
Most People Don’t Know Wine Moves Like This
9:42
Wine legs aka wine tears or wine fingers are stranger than they seem.
World’s Largest Camera Lens
9:12
We caught the short window of time to see the largest digital camera's massive lens.
The Surprising Ways Mars is Hostile to Life
10:11
Wanna know all the reasons Mars will kill you and how we know?
What Happens When Black Holes Collide?
30:22
What happens when black holes collide? What is the speed of gravity?
Why Are There Giant Concrete Tunnels in the Desert?
11:24
The Physics Girl team visited LIGO once again.
Testing What Exercise Actually Does to Your Butt
10:34
What activates your butt muscles more, running or squatting?
The Hardest Exam I Ever Took at MIT in Physics
9:36
Unboxing an MIT Physics Exam from the 8.012 Classical Mechanics course.
This Weird Straw Effect
5:00
When you look through a straw in water something strange happens as you move it up & down.
5 Scary Physics Experiments!
7:05
Top 5 creepy science experiments ft. iJustine
Active loading indicator