Leon Battista Alberti invented the first anemometer in 1450 A.D. His invention was a disk that was perpendicular to the direction of the wind, which measured wind speed.Know More
The type of anemometer that is common today, the cup-shaped variety, was not invented until 1846 by John Thomas Romney Robinson. He used four cups and wheels on his anemometer. The design was improved again in 1926 by John Petterson, who simplified the design to 3 cups.
Today's anemometers measure wind speed, wind pressure and wind direction. Wind speed is calculated by counting the number of times the cups on the instrument turn. They help meteorologists analyze how weather works, which assists with weather predictions.Learn more about Inventions
The invention of the typewriter is attributed to several inventors, including Henry Mill's concept typewriter of 1714, Rasmus Malling-Hansen's writing ball of 1870 and Christopher Latham Sholes' successful American typewriter of 1868. Sholes' design is the basis for the modern typewriter.Full Answer >
The invention of the ruler dates back to ancient civilizations, such as the Greeks and Egyptians. Used to make measurements in a straight line, the first excavated rulers were often made from wood or ivory.Full Answer >
Archaeologists and historians attribute the invention of the wheel to the ancient Sumerians of Mesopotamia around 3,500 B.C. It's most probable that the wheel came about as a series of slow incremental advances to existing technologies, rather than one giant leap.Full Answer >
The invention of the telegraph is credited to the English inventors William Cooke and Charles Wheatstone as well as the American inventors Samuel Morse, Alfred Vail and Leonard Gale. The telegraph allowed for long-distance communication by sending messages between devices by means of an electric current.Full Answer >