Graviton

Searching for the graviton

Chapter 1

The puzzle of gravity

Chapter 2

The quantum clash

Chapter 3

Vibrating strings and extra dimensions

Chapter 4

The ultimate cosmic detective work

YOUR GOAL

Master of Searching for the graviton

Ch 1 · The puzzle of gravity

hue Meet the hypothetical graviton

hue Graviton

Spin of two, spin of two! Massless waves are pulling you!

hue The standard model missing piece

Meet the hypothetical graviton

hue Scientists propose a tiny, invisible particle called the graviton to carry the force of gravity across space.

The standard model missing piece

hue Particle physics explains almost everything using a master list called the Standard Model, but gravity is completely left out.

Meet the Gravitons

BETA

hue Drag gravitons between massive objects to learn how they create the force of gravity.

Fun Fact

Graviton speed: If gravitons exist, they must travel at exactly the speed of light, meaning a change in Earth's gravity would take 8 minutes to reach the Sun.

Glossary

graviton (noun)
A hypothetical elementary particle that mediates the force of gravitation in quantum field theory. Physicists propose this particle to reconcile quantum mechanics with Albert Einstein's 1915 theory of general relativity.

Gossip

Which fundamental force is the coolest?

Quiz

If the Sun suddenly vanished, how long would it take for Earth to feel the gravitational change?

hue The force we feel every day

Quiz

What kind of mass is a graviton predicted to have?

hue Why we need a quantum messenger

Quiz

In what year did Isaac Newton publish his mathematical description of gravity?

Quiz

Which particle carries the electromagnetic force in the Standard Model?

Quiz

What is the theoretical quantum "spin" value of a graviton?

Quiz

What is the name of the master framework of particle physics that currently excludes gravity?

Quiz

How much weaker is gravity compared to electromagnetism?

Quiz

What is the ultimate goal of combining quantum mechanics and gravity called?