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Forensic Detectives: Earth's Magnetic Fields

Related Article: Learn more about physics.

Earth has a gigantic magnetic field that stretches into space. Only recently have scientists been able to illustrate this field and why it changes.
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Physics: Overview of the Motor Effect

Physics: Overview of the Motor Effect (1:02)

This video investigates the principles involved in the forces on a current-carrying conductor in a magnetic field. Additionally, this video compares DC motors to meters and shows how to build a simple DC electric motor.

Invention Nation: Solar Panels

Invention Nation: Solar Panels (1:22)

Take a closer look at the technology used to build solar panels. Learn more about solar cells in this video.

Electricity and Magnetism: Circuit Boxes and Breakers

Electricity and Magnetism: Circuit Boxes and Breakers (1:45)

Learn more about circuit boxes and breakers by watching this clip.

Energy: Nuclear Energy

Energy: Nuclear Energy (1:49)

Nuclear energy used to produce electricity does not release pollutants into the environment unless there is an accident, at which point very harmful radioactive materials are released.

Dr. G: Tools of the Trade

Dr. G: Tools of the Trade (6:10)

See the wide range of tools -- both high-tech and simple -- that are used to perform autopsies. Learn more about the daily grind of a medical examiner in this video from Discovery.

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Deconstructed: Transformer Induction

Deconstructed: Transformer Induction (2:54)

On The Science Channel's "Deconstructed," learn how the process of induction in a transformer works.

10 Ways to See into the Future: Time Travel

10 Ways to See into the Future: Time Travel (2:46)

Can time travel allow us to visit the future? Watch as a child explains Einstein's theory on the elasticity of time on The Science Channel's "10 Ways to See into the Future."

10 Ways the World Will End: Nuclear Holocaust

10 Ways the World Will End: Nuclear Holocaust (2:58)

The Science Channel's "10 Ways the World Will End" examines the plausibility of a nuclear holocaust. With the world supply of nuclear warheads at an all time high, a nuclear holocaust is an imminent threat.

What the Ancients Knew: Buoyancy Defined

What the Ancients Knew: Buoyancy Defined (1:06)

Ever wonder why some objects float and others sink in water? Watch and find out as host Jack Turner explains the phenomenon of buoyancy on The Science Channel's series, "What the Ancients Knew."

Science of Star Wars: Helio 3D Display

Science of Star Wars: Helio 3D Display (0:58)

Many companies are interested in this new technology as an alternative to the one-dimensional power point presentation. Watch it's potential in The Science Channel's series, "Science of Star Wars."

100 Greatest Discoveries: Study of Relativity

100 Greatest Discoveries: Study of Relativity (2:14)

Einstein's study of relativity led to the now famous equation e=mc squared. Learn more about this equation on The Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: Laws of Motion

100 Greatest Discoveries: Laws of Motion (1:17)

Sir Isaac Newton developed the laws of motion which explain the movement of all physical objects. Learn more about motion on The Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: Signature Light of Elements

100 Greatest Discoveries: Signature Light of Elements (2:45)

On Science Channel's "100 Greatest Discoveries," learn why every atom, when burned, has a different color.

100 Greatest Discoveries: Radioactivity

100 Greatest Discoveries: Radioactivity (1:39)

The discovery of radiation was a major breakthrough in chemistry. By studying radiation, Henri Becquerel discovered radioactivity. Learn more about radioactivity on the Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: Electrochemistry

100 Greatest Discoveries: Electrochemistry (1:26)

On The Science Channel's "100 Greatest Discoveries," learn how the experiments of Humphry Davy became a breakthrough in electrochemistry.