Time-lapse of Starry Night Sky

This Building Block video features a time-lapse, low angle shot of three observatories under a star-filled night sky in Cerro Tololo, Chile.

Toaster Oven

A slice of bread is tossed into a toaster oven, which is then switched on in this Building Block video.

Tornado Chaser Footage

These video segments adapted from NOVA feature extensive footage of a tornado and tornado damage.

Total Solar Eclipse Animation

This brief animation adapted from NOVA illustrates how total solar eclipses form and explains the stages from first contact to totality.

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Traffic

Automobiles and trucks drive along a busy road in the late afternoon Sun in this Building Block video.

Coal Tramway

In this Building Block video, coal carts move along an elevated tramway as smokestacks spew smoke in the background.

Transforming the Future of Flight

In this video segment adapted from NASA, learn how engineers are transforming the future of flight by designing airplanes based on principles found in nature.

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Tree Identification

This video from WPSU’s series Outside provides tips on how to identify a tree from its bark, twigs, buds, and fruit as you walk through the woods in winter.

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Tunnels of the Great Pyramids

In this Building Block video from the Building Big series, the camera provides a P.O.V. shot as it winds through a dark tunnel below Egypt's Great Pyramids towards the light.

Turtle Defense

In this video from WPSU’s series Outside, learn how turtles ward off danger in the wild with special characteristics that enable them to survive in their habitat.

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Two Pyramids

This Building Block video from the Building Big series shows two of the pyramids at Giza standing against the horizon. Amidst rubble and under a clear sky, one pyramid has a stepped surface while the other is rough.

U.S. Capitol Building

A beautiful extreme long shot of the U.S. Capitol building's West Front is shown from across the reflecting pool in this Building Block video.

The Value of Wetlands

This video segment adapted from Texas Parks and Wildlife Department explores the role of the wetlands in our environment, including providing habitats for wildlife, acting as natural water filters, and playing a part in the greater water cycle.

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Vietnam Veteran Memorial

In this Building Block video, the camera tilts down to show a black granite panel engraved with the names of fallen soldiers.

Washington, D.C. at Night

In this Building Block video, the camera pans from right to left as it follows cars driving past the Department of Justice towards the Capitol.

Water Cycle Animation

This animation from NASA visualizes the steps of the water cycle, including precipitation, evaporation, transpiration, and condensation.

Welding in a Tunnel

This Building Block video shot at the Big Dig project in Boston, Massachusetts, features two men in hardhats in a darkened tunnel. One of the men is welding some pipes, and red sparks fly everywhere.

What Is a Planet?

This video segment, adapted from NOVA scienceNOW, presents the ongoing debate over the definition of a planet, including the status of Pluto.

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What Is a Pulley?

How do you get a glove and a ball up to your tree house? One answer is to use a pulley. A pulley is a simple machine. In this original KET video, children learn about the workings of this basic mechanism.

The White House

In this Building Block video, the camera moves in for a medium shot of the White House North Portico on a bright day.