موسوعة العلمـاء و المخترعين .. العلمـاء بالترتيب حسب اسم الشهرة .. الحرف ١١_ل

Encyclopedia of Scientists and Inventors.. Scientists in order according to their nickname.. The letter 11_L

⏹ Leslie, Sir John Leslie, Sir John

Scottish mathematician, physicist and inventor
( 1832 - 1766 )
Due to Leslie's knowledge of physics and mathematics, his fame as a scientist overshadowed his reputation as an inventor. Leslie was able to invent many devices, the most important of which are the hygrometer (a device for measuring humidity), a differential thermometer (a differential thermometer), and a photometer (a device for measuring light intensity, a photometer). He also invented a method of rapid evaporation freezing. He has important books on heat, mathematics and philosophy.

⏹ Lissajous, Gilles Antoine
Lissajous, Jules Antoine

French physicist (1822-1880)
Lissajous taught at the College Saint-Louis in Paris. In 1857, he invented the vibration microscope, by which two simple orthogonal harmonic movements could be observed. The resulting shapes are called by his name: Lessago shapes. He has important studies in acoustics and optics.

Lysenko, Trofim Denisovich
Lysenko, Trofim Denisovich

Soviet biologist (1898-)
Listko studied in Ukrainian institutes, then in specialized Soviet institutes, became a member of the Academy of Sciences of the USSR, and headed the Academy of Agricultural Sciences of the USSR. Lysenko was famous for his support for the theories of the world Ivan Michurin. Lysenko focused on studying plant genetics for agricultural purposes and devised a method of early flowering and vernalization in order to overcome the disability arising from the winter frosts for the seeds that are sown in the spring. He said not to inherit the acquired traits, which led to a conflict between him and the fanatics of the Mendelian school. He made very advanced developments on the hybridization of plants and the production of new varieties.
Lysenko was awarded the Lenin rank, and then won the Stalin Prize, in recognition of his book on Agrobiology, which he published in 1948.

⏹ Lishman, Sir William Pugh
Sir Leisham, William Boog

Bacteriologist Scotlin D (1865 - 1926)
Lishman studied in Glasgow and then worked as a professor of pathology at the Army Medical College A.M.C.
Lichman discovered the vaccine used in vaccination
Against "Typhoid" In his later days, Lichman served as Director General of the Army Medical Service.

Leverrier, Urban Jean Joseph
Leverrier Urbain Jean Joseph

French astronomer (1811 - 1877)
Lefrebe began his life interested in chemistry, then turned to astronomy, and became a member of the Academy of Sciences as a result of his observations about the transition of the planet Mercury. His observations about the irregular movement of the planet Uranus (Uranus) led to the discovery of the planet Neptune. Neptune, and it is said that Adams, the English astronomer, had preceded Leverrier for some time in reaching similar results, so the credit for the discovery is attributed to them together, and Leverier was characterized by arrogance and temper, which affected his public life.

⏹ Leeuwenhoek, Anton (Anthony) Van
Leeuwenhoek ( Leuwenhoek , Antoine ) Anton Van

Dutch naturalist (1632-1723)
Leeuwenhoek's interest in optics emerged, and he made a number of simple microscopes. He was able to see many microorganisms, blood cells and capillaries. With this, Leeuwenhoek was able to refute the “theory of the direct emergence of living things from non-living components without the existence of a previous origin (such as minute eggs or yeasts).
He laid the foundations of histology, and is considered the inventor of some of the microscopes he made.

⏹ Levin, Phoebus Aaron Theodore
Phoebus Levene, Aaron Theodore

Russian - American chemist (1869 - 1940)
Levin received a military education in St. Petersburg, studied chemistry at a number of European universities, then immigrated to America when he was twenty-three years old.
He continued studying chemistry at Columbia University and then went to the Rockefeller Institute. Levin did important studies in biochemistry, especially with regard to proteins, and he also studied stereochemistry and other subjects.