Construction

Bob the Builder | Constructing a Class Zoo

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In the episode "Bear Mountain," Bob and his team must build an enclosure for a bear at the Fixham Zoo. Wendy explains that a habitat is the surroundings where you live. In this activity, children will investigate different animal habitats, and construct one with a shoebox and some creativity! 

How Do Torsion-Spring Hinges Work?

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By mounting torsion springs on a hinge, the effort required to open or close the hinge is reduced. Learn more about construction technologies in this animation from Design Squad Nation.

Simple Circuits | Meet the Teacher

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In this video a teacher at Stout Field Elementary School in Indianapolis, Indiana, shows her students how to create simple circuits.

The Silver Bridge Tragedy

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Examine the causes of the Silver Bridge tragedy and what lessons were learned from the event.

Aventura Científica: Nanotecnología seg. 2

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En este segundo video de la Aventura Científica: Nanotecnología, el Dr. Mitk'El Santiago presenta el laboratorio de nanotecnología de la Universidad Metropolitana.  Describe el equipo que se utiliza y los proyectos de investigación en desarrollo basados en materiales para la energía solar.

In this second video of "Aventura Científica: Nanotecnología" (Scientific Adventure: Nanotechnology), Dr. Mit'El Santiago presents the nanotechnology laboratory of the Universidad Metropolitana (Metropolitan University).  He describes the equipment utilized and the investigation projects being developed on solar energy materials.

Avalanche Town

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In 1995, an avalanche overran an unsuspecting fishing village in Iceland, killing 20 of its residents. Although avalanches are a common occurrence in the region, this was the first avalanche in this village's history to travel as far as the city center. In this video segment adapted from NOVA, learn more about the Iceland avalanche and how engineers plan to protect the village from future avalanches.

Underwater Tunnels Connect Mainland to New York City | American Experience

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Discover how the Pennsylvania Railroad engineered underwater tunnels to bring the railroad service to Manhattan, in this video excerpt from American Experience. Engineering challenges included building six tunnels under the Hudson and East Rivers to connect Manhattan with New Jersey and Long Island as well as a steel arch bridge over the East River to connect Manhattan with New England. The entire project became an example of both modern problem solving and a privately funded initiative that delivered a great public benefit. This resource is part of the American Experience collection.

American Experience: Penn Station's Underwater Tunnels

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In this media gallery from American Experience, learn about the Pennsylvania Railroad's plan to bring railroad service to Manhattan at the beginning of the 20th century and the unprecedented 1903 engineering of underwater tunnels to Penn Station. This resource is part of the American Experience collection.

Greatest Creature Builder - Wild Kratts | PBS KIDS Lab

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Use this video to teach children how beavers build dams that transform the landscapes around them. Chris and Martin meet one of nature's master builders, the Beaver.

Utiliza este vídeo par enseñar a niños cómo los castores construyen represas que transforman su alrededor. Chris y Martin miran a el constructor de la naturaleza, el castor.

Grass Bridge

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The ancient Inca were a textile society and thus skilled in working with natural fibers including alpaca and cotton. Still, it might surprise people today that their solution to crossing the canyons and gorges of their mountainous empire featured another fibrous material: grass. When you consider how they built a simple suspension bridge, you'll realize that not only was this a practical solution, it was also a safe one. In this video segment adapted from NOVA, watch residents of the Peruvian Andes as they build a traditional and functioning grass bridge—the likes of which enabled the ancient Inca people to flourish for several hundred years.

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