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The first bicycle
German Inventor Karl von Drais is credited with developing the first bicycle. His machine, known as the "swiftwalker," hit the road in 1817. This early bicycle had no pedals, and its frame was a wooden beam. The device had two wooden wheels with iron rims and leather-covered tires. -
Fountain pen
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the first fountain pen. -
Electric motor
The first direct current electric motor capable of turning machinery was invented by the English scientist William Sturgeon in 1832. -
Repeating rifle
the Spencer was the world's first military metallic-cartridge repeating rifle, and over 200,000 examples were manufactured in the United States by the Spencer Repeating Rifle Co. and Burnside Rifle Co. between 1860 and 1869. -
Dynamite
Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay) and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany and patented in 1867. It rapidly gained wide-scale use as a more powerful alternative to black powder. -
Metal detector
Gustave Trouvé, a French electrical engineer, invented the first metal detector in 1874. He created a hand-held device in order to locate and separate bullets and other metal objects from human patients -
loudspeaker
The very first form of loudspeaker came to be when telephone systems were developed in the late 1800s. But it was in 1912 that loudspeakers really became practical -- due in part to electronic amplification by a vacuum tube. By the 1920s, they were used in radios, phonographs, public address systems and theater sound systems for talking motion pictures. -
light bulb
Light bulbs became a major resource of light for many people since they was invented. -
Kodak camera
By far the most significant event in the history of amateur photography was the introduction of the Kodak #1 camera in 1888. Invented and marketed by George Eastman (1854–1932), a former bank clerk from Rochester, New York, the Kodak was a simple box camera that came loaded with a 100-exposure roll of film. -
Remote control
The first remote intended to control a television was developed by Zenith Radio Corporation in 1950. The remote, called "Lazy Bones," was connected to the television by a wire.