Bandwidth and Data Conversion

This interactive activity adapted from the Wisconsin Online Resource Center describes the factors that affect the speed of data transfer in computer networking systems and some of the techniques used to increase the data capacity of these systems.

Beyond Einstein

NASA scientists describe some of the ways current science is addressing several of Einstein's fundamental questions and theories in this video adapted from NASA.

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Designing Electric Circuits: Steadiness Tester

In this video segment adapted from ZOOM, cast members discover that metal is a good conductor of electricity as they play the steadiness tester game.

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Designing Future Cities: Alternative Energy

In this video segment adapted from ZOOM, visit a class as they design a city of the future that will use solar, wind, and water power to fuel its economy.

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Dust-Proofing a Mars Rover

Enter the lab of NASA scientist Dr. Carlos Calle to see how systems are being developed to keep planetary rover solar panels dust-free, in this video from NASA EDGE.

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Electric Charges Interact

Experiment with electric charges to find out how they interact in this interactive activity adapted from NASA.

Electric Girl

Anna loves electricity. Watch her construct a homemade flashlight and show off her new, electrifying hairdo in this video segment from ZOOM.

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The Electromagnetic Spectrum: FRONTLINE

This video segment adapted from FRONTLINE introduces the electromagnetic spectrum and explains how the various types of electromagnetic waves are distinguished by the amount of energy each wave carries.

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The Electromagnetic Spectrum: NASA

From radio waves to gamma rays, this video segment from NASA introduces the seven categories of the electromagnetic spectrum and how each type of radiation is part of our everyday lives.

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Electrophoresis and Gel Analysis

In this animation produced by WGBH and Digizyme, Inc., see how molecules of DNA are separated using gel electrophoresis, and how this process enables scientists to compare the molecular variations of two or more DNA samples.

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Experimenting with a Lemon Battery

Can a fresh lemon power a digital clock? In this video segment adapted from ZOOM, the cast shows you how this can be done and, in the process, discover how kids can be a part of an electric circuit.

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Exploring Conductivity: Kid Circuits

In this video segment adapted from ZOOM, cast members join hands and become electron conductors to complete an electric circuit.

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Generating Electrical Voltage

This interactive resource adapted from the Wisconsin Online Resource Center illustrates how electrical voltage is generated through a process called magnetic induction and describes some of the factors that affect the magnitude of the voltage produced.

Generation of Alternating Current

This interactive resource adapted from the Wisconsin Online Resource Center illustrates the parts of an electrical generator and shows how they function to produce alternating current.

Infrared Energy

Explore infrared energy and how NASA detects it to study our Earth's systems more completely in this video adapted from NASA.

Infrared Gallery

How would your world look if you saw heat instead of light? In this interactive resource produced for Teachers' Domain, see what familiar objects look like through an infrared camera and watch infrared videos of geysers, mudpots, and hot springs.

Infrared: More Than Your Eyes Can See

In this video segment adapted from NASA, astronomer Michelle Thaller introduces the world of infrared light and demonstrates how infrared cameras allow us to see more than what the naked eye can perceive.

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Inside a Solar Cell

This interactive activity adapted from NOVA Online features animations that illustrate the components of a typical photovoltaic cell and how it converts solar energy into electricity.

Inspector Detector Challenge

In this video from Design Squad Nation, kids design and build magnetic-field detectors and use them to find hidden magnets. They also learn how NASA uses magnetometers to learn what is going on inside a planet or moon.

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Inverse Square Law

This animation from KET's distance learning physics course demonstrates the mathematical formula for a scientific law as it applies to light.