Gamma Ray Telescope Senses High-Energy Radiation

This video from NASA describes the GLAST satellite, which is equipped with a gamma-ray telescope, and shares some background about the kinds of extreme universal phenomena indicated by the presence of gamma rays.

Geothermal Power

This video segment from Vegas PBS shows the important role geothermal energy systems can play in making a more energy-efficient and greener building.

Accessibility features: Caption

Germany Phases Out Nuclear Power

This video excerpt from FRONTLINE: "Nuclear Aftershocks" explores the debate behind Germany's decision to phase out its nuclear energy program and revert back to coal as “the bridge” that will eventually allow greater reliance on renewable energy.

Accessibility features: Caption

Glass Breaking with Sound

In this video adapted from the Encyclopedia of Physics Demonstrations, learn how a glass beaker vibrates at a specific frequency and how resonance can force it to shatter.

Accessibility features: Caption

Glider Boy

Meet 12-year-old Jesse, the designer of dozens of gliders, in this ZOOM video segment. Some of his gliders fit in your hand, while others can only be stored in the garage. Watch his gliders go and learn why they fly.

Accessibility features: Caption, Transcript

Global Warming: Carbon Dioxide and the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE demonstrates the physical property of carbon dioxide that causes the greenhouse effect.

Accessibility features: Caption

Global Warming: The Developing World

This video segment adapted from NOVA/FRONTLINE looks at the future of global warming as developing nations, including India and China, increase their need for energy.

Accessibility features: Caption

Global Warming: The Hydrogen Car

Is the hydrogen car the answer to global warming? This video segment adapted from NOVA/FRONTLINE looks at the pros and cons of this developing technology.

Accessibility features: Caption

Global Warming: The Physics of the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE examines the greenhouse effect, its role in keeping Earth habitable, and the industrial changes that have led to an increase in the planet's average temperature.

Accessibility features: Caption

Glory: The Rough Road to Space

This video adapted from NASA describes the various factors engineers must consider when designing a spacecraft that can withstand the extreme conditions in space.

Gravity

This video segment from IdahoPTV's D4K demonstrates how gravity, mass, matter, and weight are related and how astronauts can overcome earth's gravity to fly to space.

Accessibility features: Caption, Transcript

Gravity at Earth's Center

In this video segment from NOVA scienceNOW, learn about the effects of gravity as astrophysicist Neil deGrasse Tyson falls through a virtual hole through Earth's center.

Accessibility features: Caption

Green Energy

This video segment from IdahoPTV's D4K describes renewable and non-renewable energy sources and the benefits and drawbacks of each. It provides some ideas about how you can personally conserve energy.

Accessibility features: Caption, Transcript

Group Metals

Metals are grouped according to their characteristics. This video segment uses the periodic table for an in-depth discussion.

Growing Plants in Space

Learn about the challenges and benefits of growing plants in space from plant biologist Dr. Ray Wheeler in this video from NASA.

Accessibility features: Transcript

Hana's Japanese Drums

In this ZOOM video segment, join Hana as she learns traditional Japanese drumming with her Taiko group.

Accessibility features: Caption, Transcript

Helium Is Boring

In this video adapted from the National Science Center, observe a demonstration to discover how helium gas is inert and hydrogen gas is reactive.

Accessibility features: Caption

Hoover Dam

This video segment from Building Big: "Dams," demonstrates the basic principals at work in the Hoover Dam, a concrete gravity dam that also makes use of the properties of the arch.

Accessibility features: Caption

How Do You Get to the Moon?

This video, adapted from NOVA, showcases the competing engineering plans designed for landing a person on the Moon for the first time.

Accessibility features: Caption

How to Reduce Lead Exposure

Learn how to prevent childhood lead poisoning in this video segment adapted from Lead Awareness for Parents by the Coalition to Prevent Lead Poisoning.

Accessibility features: Caption