How gravity causes a perfectly spherical ball to roll down an inclined plane is part of elementary school physics canon. But the world is messier than a textbook. Scientists have sought to ...

Galileo used an inclined plane to determine the rate of acceleration due to Earth's gravity. In one experiment, he changed the pitch of the plane, but not its height.

How gravity causes a perfectly spherical ball to roll down an inclined plane is part of elementary school physics canon. But ...

In this feature, you'll get a sampling of Galileo's thought experiments and conduct virtual versions of his experiments, including those using an inclined plane and a pendulum.