Our national bird is back in the lower 48 states after nearly disappearing in the 60's and 70's. Robert Mesta, a biologist with the U.S. Fish and Wildlife Service, explains what it takes to recover a...
It is important to measure the size of the animal and understand how each animal?s size and unique needs relate to the area or capacity of its enclosure. Running time 1:15 minutes. Available by s...
Building places to live and work in extreme environments takes architects that understand how to play by a different set of rules. Take your students to NASA's Johnson Space Center and the University...
Building a 72-story skyscraper like Trump Tower in New York City is no easy feat. That?s where structural engineers like Ysrael Seinuk come in. This movie explains how shapes are at the foundation o...
A guitar pickup is a device that acts as a transducer (a device that receives a signal in the form of one type of energy and converts it to a signal in another form) that captures mechanical...
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