موسوعة العلمـاء و المخترعين .. العلمـاء بالترتيب حسب اسم الشهرة .. الحرف ٣_غ

Encyclopedia of Scientists and Inventors.. Scientists in order according to their nickname.. The letter 3_g

⏹ Gramaldi, Francisco Maria
Grimaldi, Francesco Maria

Italian physicist (1618 - 1663)
Grimaldi taught mathematics in the city of Bologna. He discovered the phenomenon of light scattering, as well as the interference of light and prismatic diffusion. It was mentioned in a book entitled: The Nature of Light (de Lumine Physicomathesis), the first drawing of a morphological theory of light, which paved the way for the emergence of the works of Isaac Newton in optics.

⏹ Grew, Nehemiah

English botanist (1641-1712).
Grou studied in Cambridge and Leiden, then worked in London, and he was one of the first in the Royal Society, and he held the position of its secretary. The genus of plants is a correct belief, and he was the first to use the formula: comparative anatomy.
He wrote on Comparative Anatomy of Stomachs and Guts
He also wrote excellently on plant anatomy. (Anatomy of Plants).

⏹ Grosse (Grosse), Aristid

German-American chemist (1905-).
Gross grew up in Germany, studied in Berlin, then immigrated to America, and when he was thirty-five, he worked as a research fellow in the Physics Department at Columbia University. Gross had previously managed to isolate the element protactinum (element No. 91 in the Mendeleev table) - Gross cooperated with all Nier, Booth, and Dunning investigated practically the fission of uranium-235 by neutrons, thus paving the way for the manufacture of the atomic bomb.

⏹ Gray, Stephen Gray, Stephen

English physicist (1736-).
.. Gray relied for a period of his life on the aid of a charity known as Charterhouse Charterhouse,
He conducted experiments on static electricity, and he was the first to conduct friction experiments to clarify conduction. He explained that electrification is a superficial phenomenon without realizing its importance.

⏹ Strange, Karl Graebe,

German chemist ( 1927-1841 )
Gharibeh was known as a professor of chemistry in Geneva, and he gained his fame as a result of his synthesis of organic compounds.
Gharibeh participated with Lieberman in 1869 in the first synthesis of his dye, alizarin, from a compound and anthraquinone.
This dye was taken from the roots of some plants since the days of the ancient Egyptians.

⏹ Gregor, William William Gregor ,

English chemist (1761 - 1817)
Gregor studied in Cambridge and Bristol with the aim of entering the church and later held the position of priest in Devonshire and Cornwall. Gregor was famous for his analysis of local minerals, including black sand (aluminate mineral, which is composed of an atom of iron, an atom of titanium and three oxygen atoms: FeTiO3). Thus, he discovered titanium, but this discovery passed without fanfare and was quickly forgotten.

⏹ Gregory David Gregory , David

Scottish athlete ( 1661 - 1708 )
Gregory taught mathematics in Edinburgh and Oxford. He is the nephew of the mathematician, James Gregory, who made the reflector telescope. Gregory benefited from his studies of engineering (geometrics) and optics. He pointed out the possibility of making groups of lenses through which light would pass without decomposing into the colors of the spectrum. Such a group of lenses is called an adjective: achromatic.

⏹ Grenar, François Auguste Victor
Grignard, Francois Auguste Victor

French chemist (1871 - 1935)
Grenar received his education in Cherbourg and Lyon. He was interested in organic chemistry • He worked as a professor at the University of Nancy and the University of Lyon • The most important achievements of Grenar were the discovery of organic magnesium compounds prepared by dissolving magnesium powder in certain organic substances such as alkyl (1) bromides or iodides in ether. Such a reaction is called “Grenard’s interaction.” He shared with Sabatier the Nobel Prize in Chemistry in 1912.
(1) An alkyl is what is symbolized in organic chemistry by a substance with the letter R, and it is an aliphatic organic compound (hydrocarbon) when it loses a hydrogen atom. The material produced by the Grinar reaction is R - Mg - X, where X is the halide.

Green, George

English mathematician (1793-1841).
Greene was one of the few self-taught scientists in mathematics - he took an interest in physical problems and applied his knowledge of mathematics to them. Develop several theories and hypotheses about electrostatics (static) and magnetism. Towards the end of his life, Greene worked at Cambridge as a teacher.

⏹ Gill, Sir David Gill, Sir David

Scottish astronomer (1843 - 1914)
Gul learned in Aberdeen and set up his own observatory there, and was appointed after that as an astronomer. King in the Cape of Good Hope (South Africa) and that was in 1879 · Mahal conducted many photographic works of the southern sky and used a variety of devices, including a heliometer (any device intended for solar measurements) to measure the parallax in the solar and stellar positions.