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.
During World War II, more than a thousand women signed up to fly with the U.S. military as WASPS.
Robert Noyce's invention of the microchip launched the world into the Information Age.
They were the first to brave the unknown.
The dramatic story of the nation's first subway
Brothers Wilbur and Orville Wright built a flying machine that made its first flight in Kitty Hawk, North Carolina in 1903.
In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
The remarkable story of how a railroad was built connecting California to the East.