magnetic fields

Explore the basics of magnets, looking at topics such as poles, electromagnets, and how we use the Earth's magnetic field to find our way.

Simple text and illustrations provide an introduction to magnets, and explores their use in science tools.

On March 13, 1989, the lights went out across Canada and the eastern seaboard of the United States. One of the most serious power grid failures in American history was caused by a magnetic storm. Nova explores one of the most serious threats to life.

An exploration of magnets and electromagnetism that covers magnetic fields and poles, the many uses of magnets and electromagnetism, electromagnetic radiation, and other related topics.

Examines the glowing colors as they change shape, fade and then brighten the night sky.