Sound in Space

Can you hear sound in space?

How would your voice sound on different planets?


Lightning Strikes

Can lightning strike the same place twice?

What is lightning?

Up Next

The Falling Elevator

Will jumping at the last second in a falling elevator save your life?

What is free fall?

More Videos

Is There Sound in Space?

Is There Sound in Space?

Have You Ever Wondered...

What is matter?

What events led to the beginning of WWI?

How do we know our food is safe?

What is nuclear energy?

What is chemical equilibrium?

What is visible light?