Who invented fuel cells in 1839?

On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.

Dr. Hans von Ohain and Sir Frank Whittle are recognized as the co-inventors of the jet engine. Each was working separately and knew nothing of the others work. Although Whittle started first, von Ohain was first to design and develop a turbojet engine to power an aircraft.

Of the many honors received by both, the most significant honor was probably "The Charles Draper Prize" in 1992 which was given to both Hans von Ohain and Sir Frank Whittle for their efforts and contributions to aviation and mankind. "The Charles Draper Prize" is recognized as the equivalent to the Nobel Prize in technology.

The first message ever sent over what is now called the Internet took place at 10:30PM on October 29, 1969. Back then, the Department of Defense called it ARPAnet (Advanced Research Projects Agency network).

This was a plastic potato-shaped body on which you could stick different features, such as eyes, ears, etc.

As you have noticed in pictures, many Egyptians have head coverings, sometimes with beads in them. The first wigs were created to cover the head from the hot sun.

Invented in 1868.

The first Frisbees were pie tins from the Frisbie Pie Company in Connecticut. In the 1950s, the pie tins were changed to plastic plates. The name then became the Flying Saucer, but later changed to Frisbee.

The first elevator was built in the palace of King Louis XV. It only traveled up one floor, and was hand powered by men inside the chimney.

McQueen died in 1980 from a rare form of lung cancer.

George Gamow. Gamow, who died in 1968, was a physicist, who published "Thirty Years that Shook Physics".