Browsing: Inventions

The invention of the telescope is often attributed to the Dutch lens sharpener Hans Lippershey. In 1608, he applied patent…

Karl Landsteiner made an important discovery in 1901 when he examined blood. He mixed blood to see how that blood…

On April 2, 1845, French physicists Léon Foucault and Hippolyte Fizeau took the first photograph of the sun. They used…

On June 4, 1937, the American supermarket owner Sylvan Goldman (1898-1984) introduced the shopping cart. A lucrative invention that is…

On June 21, 1979, Sony presented the first Walkman, a portable cassette player with headphones that could be taken along…

The Jewish-Lithuanian ophthalmologist and philologist Lejzer Zamenhof designed the international auxiliary language Esperanto. The language is spoken in more than…

The Danish inventor Valdemar Poulsen developed the first magnetic tape recorder, the telegraphoon, in 1898. A few years later, the Dane also made the very first answering machine for the telephone. The answering machine allowed callers to leave a message when their call went unanswered. Today voicemail systems are the most normal thing in the world, but in the early twentieth century this was still a new phenomenon. The telephone itself was also only a few decades old.

German chemist Felix Hoffmann went down in history as the man who gave the world the Aspirin. The painkiller consists of acetylsalicylic acid. The effect of that substance had been known for much longer, but Hoffmann marketed it under the name Aspirin in 1899, which made it extremely popular.