Why Isn't "Zero G" the Same as "Zero Gravity"?

Category: Physics

This Quick Question explains the difference between gravity and g-force, and how you can experience zero-g in space even when it’s not zero gravity!

You might also like

Great Scientists in Their Own Words

Film telling the story of the greatest physicists of the 20th century and the discoveries they made, told in their own words. Men and women who transformed our understanding of the universe, from unlocking the secrets of the atom to solving the mysteries of the cosmos.

Secrets of the UniversePhysics

How to Build a Force Field

Every starship needs armor to protect it from asteroids and enemy attack- Dr. Michio Kaku reveals how cutting edge science could be used to create force fields that might one day save our space craft from an alien onslaught.

S1E12Physics of the Impossible • 2009 • Physics

The fundamentals of space-time (Part 1)

Space is where things happen. Time is when things happen. And sometimes, in order to really look at the universe, you need to take those two concepts and mash them together. In this first lesson of a three-part series on space-time, hilarious hosts Andrew Pontzen and Tom Whyntie go through the basics of space and time individually, and use a flip book to illustrate how we can begin to look at them together.

1/2The fundamentals of space-timePhysics

The Structure of Earth

…or why we live on an onion made of magma.


What Is Light?

We are so used to some things that we stopped wondering about them. Like light. What is light? Some kind of wavy thing, right? Kind of.

In a Nutshell • 2015 • Physics

Uncovering a New Reality

Theoretical physicist and best-selling author Brian Greene takes us on a journey through the discoveries of quantum physics. How is it that Newtonian mechanics gave way to the more complex and modern world of quantum mechanics?

1/3Exploring Quantum History with Brian Greene • 2016 • Physics