Since 1937, the Golden Gate Bridge has stood through high winds, strong water currents, heavy traffic loads, and earthquake tremors. How did engineers design it to be structurally sound?
In a word: mathematics.
Here's your chance to explore a few suspension bridge building principles. Test engineering concepts, see their intricate math, and learn how they play out on the bridge today.
Politics, culture, race relations, and technology in a year of change.
Equipment failure, human error and bad luck led to the country's worst nuclear accident in 1979.
The internationally famous carnival of delights in New York was the birthplace of the hot dog and the roller coaster.
A uniquely impressionistic history of the early years of the Space Race.
Postwar New York City and the global economic order told through the story of the World Trade Center.
The effort of pioneering researchers to conceive babies through in vitro fertilization.
While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.