Several inventors created typing machines similar to a typewriter. The first person to develop, patent and mass-produce a typing machine was Rasmus Malling-Hansen of Denmark. Malling-Hansen first patented his writing ball in 1870, but continued to update and improve his typing machine for nearly a decade.Know More
Rasmus Malling-Hansen received critical acclaim for his version of the typewriter. His writing ball used keys with a single character on each key. These were arranged in a spherical shape above a piece of paper held on a cylinder. The machine won awards at the World Exhibitions in Vienna, the Scandinavian Art, Agricultural and Industrial Exhibitions in Copenhagen, and the Philadelphia Centennial.
Philosopher Friedrich Nietzsche famously owned a Malling-Hansen writing ball. Some of Nietzsche's original typed works have been preserved and displayed by the Malling-Hansen Society.Learn more about Inventions
At the peak of its popularity, the typewriter had a revolutionizing impact on communications, as well as on the social liberation of women. Since the typewriter so effectively opened up secretarial employment opportunities for women, the man credited with its initial mass-production was once hailed as a "savior of women."Full Answer >
The biggest inventions of 1994 were the CMOS image sensor and the first PlayStation games console. Other major inventions were the quantum cascade laser, the HIV protease inhibitor and the Segway.Full Answer >
William Morton first demonstrated the use of ether as an anesthetic, but no one knows who actually invented anesthesia. After Morton's demonstration at Massachusetts General Hospital, several people came forward claiming they had discovered anesthesia much earlier.Full Answer >
Brahmagupta, a Hindu mathematician and astronomer, first used a dot underneath other numbers to represent the number zero in 628 A.D. He was the first to develop additive and subtractive operations that use zero.Full Answer >