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Henry Cavendish FRS (/ ˈ k æ v ən d ɪ ʃ / KAV-ən-dish; 10 October 1731 – 24 February 1810) was an English experimental and theoretical chemist and physicist. He is noted for his discovery of hydrogen, which he termed "inflammable air". [1] He described the density of inflammable air, which formed water on combustion, in a 1766 paper, On ...
The ocean plays a key role in the water cycle as it is the source of 86% of global evaporation. [2] The water cycle involves the exchange of energy, which leads to temperature changes. When water evaporates, it takes up energy from its surroundings and cools the environment. When it condenses, it releases energy and warms the environment.
An elaborate inquiry on the flow of water in pipes and channels was conducted by Henry G. P. Darcy (1803–1858) and continued by Bazin, at the expense of the French government (Recherches hydrauliques, Paris, 1866). [4]
1766 Henry Cavendish discovers and studies hydrogen; 1778 Carl Scheele and Antoine Lavoisier discover that air is composed mostly of nitrogen and oxygen; 1781 Joseph Priestley creates water by igniting hydrogen and oxygen; 1800 William Nicholson and Anthony Carlisle use electrolysis to separate water into hydrogen and oxygen
Rain falling over a drainage basin in Scotland.Understanding the cycling of water into, through, and out of catchments is a key element of hydrology. Hydrology (from Ancient Greek ὕδωρ (húdōr) 'water' and -λογία () 'study of') is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and ...
A famous portrait of King Henry VIII, long considered lost, has been found after an art historian spotted it in the background of a photo shared on social media.. The painting in question was once ...
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Pierre Perrault (c. 1608, in Paris – 1680, in Paris) was a Receiver General of Finances for Paris and later a scientist who developed the concept of the hydrological cycle. He and Edme Mariotte were primarily responsible for making hydrology an experimental science. [1]