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
Salvatore Ferrara created the first jawbreaker candies. Ferrara was an immigrant to the United States from Italy. He also founded one of the most successful non-chocolate candy companies, the Ferrara Pan Candy Company.Full Answer >
The first electric motor that was capable of outputting mechanical power was invented by Prussian Moritz Jacobi in May 1834. While his first motor was only capable of generating a small amount of force, his second development was powerful enough to drive a small boat.Full Answer >
Blaise Pascal of France first proposed the idea of the bus in 1662. However, the first motorized bus was likely the one designed by Sir Goldsworthy Gurney of Great Britain in 1830.Full Answer >
Bicycle Motor Cross or BMX-style bikes evolved from do-it-yourself modifications of existing bike frames; however, the first commercially-sold bike to be widely used for such modifications was the 1963 Schwinn Sting-Ray. The Sting-Ray itself had been inspired by the motorcycle-style modifications being applied to standard bikes in southern California.Full Answer >