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1781: William Herschel announces discovery of Uranus, expanding the known boundaries of the Solar System for the first time in modern history. 1785: William Withering: publishes the first definitive account of the use of foxglove for treating dropsy. 1787: Jacques Charles: Charles's law of ideal gases.
This is the first ever electric generator. 1705: English scientist Francis Hauksbee made a glass ball that glowed when spun and rubbed with the hand 1720: English scientist Stephen Gray made the distinction between insulators and conductors. 1745: German physicist Ewald Georg von Kleist and Dutch scientist Pieter van Musschenbroek invented ...
In 1317, he made an agreement with Genoese merchant sailor Manuel Pessanha, appointing him first admiral of the Portuguese Navy, to defend the country against Muslim pirate raids. [83] Outbreaks of bubonic plague led to severe depopulation in the second half of the 14th century: only the sea offered alternatives, with most population settling ...
The two discovered a new element in a molybdenum sample that was used in a cyclotron, the first element to be discovered by synthesis. It had been predicted by Mendeleev in 1871 as eka-manganese. [176] [177] [178] In 1952, Paul W. Merrill found its spectral lines in S-type red giants. [179]
5-2 million years ago: Hominids shift away from the consumption of nuts and berries to begin the consumption of meat. [1] [2]A hearth with cooking utensils. 2.5-1.8 million years ago: The discovery of the use of fire may have created a sense of sharing as a group.
The history of longitude ... The 15th and 16th centuries were the time of Portuguese and Spanish voyages of discovery and ... having been first made practical by ...
French and Italian researchers discovered four skeletons and three gold coins in the ruins of an ancient shop.
The discovery of RNA in the particles was important because in 1928, Fred Griffith (c. 1879 –1941) provided the first evidence that its "cousin", DNA, formed genes. [ 18 ] In Pasteur's day, and for many years after his death, the word "virus" was used to describe any cause of infectious disease.