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In October 2020, a NASA spacecraft called OSIRIS-REx attempts to reach out and grab a piece of an asteroid named Bennu to bring it back to Earth. The OSIRIS-REx team has just three chances to extend its spacecraft’s specialized arm, touch down for five seconds, and collect material from the surface of Bennu.
Copyright Date: 2020
In this episode, we take a detailed look at where our electricity comes from: thermal and hydroelectric power stations, wind farms, and solar farms. We also examine the advantages and disadvantages of these sources of electricity.
Copyright Date: 2020
In this episode, we examine how lights, switches, and other electrical devices are all connected either in “series” or in “parallel” with each other. How do they wire up the lights in your house so that in some rooms the light switch turns on only one light but in other rooms the light switch switches on two (or more) lights? And how is everything wired up so as to allow us to turn the lights on a...
In episode 3 of the series, we take a look at what electric current is (it’s basically the flow of electrons through a wire) and at how electric current is measured. We then examine the different ways that electric current flows in series and parallel circuits.
This series exposes the shocking truth about electricity. Yes, positively a bad pun to begin with, but we promise to conduct ourselves really well from now on. This series teaches students watts of stuff about electricity including how it’s produced, how it’s used in our homes, how it’s controlled, and how we keep ourselves safe from nasty shocks. This is high-voltage education that is hard to res...
Across the Pacific is a series about a great aviation milestone: the 1935 crossing of the Pacific Ocean by the Pan Am flying boat China Clipper. It features re-enactments, interviews, archival photographs, newsreels and feature films.
Airline executive Juan Trippe, pilot Charles Lindbergh, airplane builder Igor Sikorsky, and radio engineer Hugo Leuteritz join forces to build an airline to Latin America as Pan Am takes flight.
Defying the skeptics, Pan Am builds an airway to Asia, allowing the China Clipper to hopscotch across the world’s widest ocean by landing at five stepping-stone islands: Hawaii, Midway, Wake Island, Guam, and the Philippines.
Pan Am builds larger flying boats and harnesses radio for navigation as it dominates service to Latin America. Plans to cross the Atlantic are dashed when Britain bars the planes from landing. So Juan Trippe sets his sights on the Pacific instead.
Based on the book by Deborah Blum,The Poison Squad tells the story of government chemist Dr. Harvey Wiley, who took on powerful food manufacturers and their allies. Following Wiley’s unusual experiments and tireless advocacy, the film charts the path of the forgotten man who laid the groundwork for U.S. consumer protection laws, and ultimately the creation of the FDA.
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