Excluding the abacus or slide rule, the first mechanical calculator was invented by French inventor, Blaise Pascal in 1642. It could add or subtract two numbers or divide and multiply by repetition, using geared wheels.Know More
In 1820, a device in a patent filed in France by Thomas de Colmar, became the first commercially viable counting machine. The design was copied by around 20 companies across Europe. In 1877, the Grant Mechanical Calculating Machine was born and in 1886, the P100 Burroughs Adding Machine arrived. It was not until 1948 that a pocket-sized calculator was invented and came in the form of the Curta calculator.
It was not until the 1960s and the advent of electronic devices that the electronic calculator came to be. ANITA (A New Inspiration To Arithmetic/Accounting) was the first all-electric desktop calculator and was released in 1961. They sold for about $1,000 when they were released that, in 2014, is nearly $8,000 after accounting for inflation. In 1965, the ELKA 22 was produced in Bulgaria and was the first calculator in the world to have a square root function. The end of bulky calculators did not happen until 1968 when Texas Instruments released the Cal Tech, the first hand-sized calculator that printed the results to paper.Learn more about Inventions
There is no real way to pinpoint who exactly invented the first ship or the concept of using a boat, but most historians agree that the Egyptians were the first culture to create and regularly use ships in long-distance trade, travel and exploration. Before the Egyptians, early man would lash logs together as a crude raft or hollow out logs for short-distance travel.Full Answer >
Two spectacle makers, Zacharias Jansen and his father, Hans Jansen, made the first microscope toward the end of the 16th century. This first microscope consisted of lenses put into a hollow tube, creating much larger images than any magnifying glass.Full Answer >
According to HowStuffWorks, the invention of the first electrical circuit is attributed to Alessandro Volta in 1800. Volta invented the battery, which allowed for the continuous electrical current needed to power circuits. The first practical use for electrical circuits was to provide electrical lighting.Full Answer >
While the first official automobile race was held in Paris in 1894, it was not until 1898 that the first car designed specifically for speed was built by Camille Jenatzy. He would later become the first person to drive an automobile at speeds higher than 62 mph.Full Answer >