The puzzle of gravity
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The quantum clash
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Vibrating strings and extra dimensions
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The ultimate cosmic detective work
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YOUR GOAL
Master of Searching for the graviton
hue Drag gravitons between massive objects to learn how they create the force of gravity.
hue Scientists propose a tiny, invisible particle called the graviton to carry the force of gravity across space.
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.
hue Particle physics explains almost everything using a master list called the Standard Model, but gravity is completely left out.
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.
If the Sun suddenly vanished, how long would it take for Earth to feel the gravitational change?
What is the name of the master framework of particle physics that currently excludes gravity?