National Geographic Things That Move Elevators HDTV XviD-YT
YT released an episode of National Geographic documentary series “Things That Move”.
They are the most common form of transportation in North America although often taken for granted by their riders. But these devices have had a profound impact on how we get around. Skyscrapers, subway systems, department stores, airports – these structures are all possible thanks to elevators, escalators, and moving sidewalks. In fact, these devices have transformed our buildings, our cities, and our lives. From the early ’safety elevator’ designed by Elisha Otis to the newest high-speed travelator (moving sidewalk) we will examine the profound impact these machines have had on how we get around.
National.Geographic.Things.That.Move.Elevators.HDTV.XviD-YT
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