Force

Ask Ethan: How do photons mediate both attraction and repulsion?

The electromagnetic force can be…

Can the known particles and interactions explain consciousness?

At a fundamental level, only a few…

Is there a 5th fundamental force of nature?

When what we predict and what we measure don’t add up…

Why “F = ma” is the most important equation in physics

From high school through the professional…

The Biggest Myth About Black Holes

Despite what you may have heard, they don’t suck anything in at…

Fifth fundamental force: fact or fiction?

The strong, weak, electromagnetic and gravitational forces…

Could dark energy be caused by a reaction to what’s in the Universe?

The force of empty space isn’t…

Ask Ethan: Is there really evidence for a new, fifth force?

The four fundamental forces have ruled our…

What is the strongest force in the Universe?

The answer depends on what scales you’re looking at.

Throwback Thursday: What is the Weak Force?

And does it have its own type of charge, like all the other forces?