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J.J. Thompson Discovers Electrons

Related Article: Learn more about atoms.

In time, evidence began to suggest that atoms are made up of even smaller particles known as electrons, protons, and neutrons.

browse videos in physics

2057: Time Travel (2:44)

Time travel is a topic that has fascinated people for years. Learn more about the idea of time travel in this video from HowStuffWorks.

100 Greatest Discoveries: Physics (2:53)

In this video clip, physicists study the primal forces of the universe-gravity, electromagnetics and the strong and weak nuclear force. Learn more about the wonderful world of physics in this video from Discovery.

Physics: Primal Forces (2:53)

Learn about the primal forces of the universe-gravity, electromagnetic, the Strong and Weak nuclear force.

MythBusters: Walking on Water Uncut (3:00)

Though they have made multiple attempts with various devices, The MythBusters have never been able to walk on water. Will Adam's new apparatus, the Aqua Skipper, help him stay afloat?

Colliding Particles at CERN (16:25)

Watch this TED video to learn how scientists are colliding particles at super high speeds in order to get a glimpse of how the universe could have been created. Watch Brian Cox and see some of his work on the Large Hadron Collider at CERN.

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100 Greatest Discoveries: Physics (2:53)

In this video clip, physicists study the primal forces of the universe-gravity, electromagnetics and the strong and weak nuclear force. Learn more about the wonderful world of physics in this video from Discovery.