Germany unveils world’s first zero emissions hydrogen-powered passenger train
French company Alstom unveiled the first-ever passenger train powered completely by hydrogen at this week’s Berlin InnoTrans trade show.
French company Alstom unveiled the first-ever passenger train powered completely by hydrogen at this week’s Berlin InnoTrans trade show.
The Berlin Wall was a guarded concrete barrier that physically and ideologically divided Berlin from 1961 to 1989.
By using MPEG audio coding, MP3s shrink down the original sound data from a CD by a factor of 12, without losing sound quality.
The Haber-Bosch process, is an artificial nitrogen fixation process and is the main industrial procedure for the production of ammonia today.
Planté’s first model consisted of two lead sheets separated by rubber strips and rolled into a spiral. His batteries were first used to power the lights in train carriages while stopped at a station.
In 1817, Drais debuted a two-wheeled vehicle, known by many names throughout Europe, including Draisienne, dandy horse and hobby horse.
The Austrian Empire was a Central European multinational great power from 1804 to 1867, created by proclamation out of the realms of the Habsburgs.
The first school lunches were thought to be served in 1790 in Munich, Germany, by an American-born physicist, Benjamin Thompson, also known as Count Rumford. In Munich, Thompson founded the Poor People’s Institute, which employed both adults and children to make uniforms for the German Army. They were fed and clothed for their work, and the children were taught reading, writing, and arithmetic. Years later, Thompson would feed 60,000 people a day from his soup kitchen in London.
Leibniz is credited, along with Sir Isaac Newton, with the discovery of calculus (differential and integral calculus). According to Leibniz’s notebooks, a critical breakthrough occurred on 11 November 1675, when he employed integral calculus for the first time to find the area under the graph of a function y = f(x).
Kepler’s work improved the heliocentric theory of Nicolaus Copernicus, explaining how the planets’ speeds varied, and using elliptical orbits rather than circular orbits with epicycles.