موسوعة العلمـاء و المخترعين .. العلمـاء بالترتيب حسب اسم الشهرة .. الحرف ٢_ل

Encyclopedia of Scientists and Inventors.. Scientists in order according to their nickname.. The letter 2_L

⏹ Lamb, not Eugene
Lamb, Willis Eugene

American physicist (1913 - )
Lamb graduated from the University of California and worked at Columbia University. He also held senior teaching positions at Stanford University and Oxford University in 1956 · Lamb shared the Nobel Prize in 1955 with Kusch Kusch for his valuable research in the spectrum of hydrogen.

⏹ Lambert, Johann Heinrich
Lambert, Johann Heinrich

German mathematician (1728 - 1777)
Lambert was a self-taught mathematician. He faced many difficulties in educating himself, as his father, a tailor, did not have the resources to meet his needs. Therefore, he worked as a writer, as well as a private astronomical teacher, and then worked as an editor in the Prussian calendar.
Lambert wrote an article in which he proved that the approximate ratio (i) is not possible to count. In his article on trigonometry, he introduced the use of hyperbolic functions.
• He also conducted research on heat, light and colors. There is a theory in lighting that bears his name: Lambert's theory, in which the inverse square law is applied to the illumination (illumination) of a surface.
The name Lambert is given to the unit of brightness, which is equal to the reciprocal of multiplying the approximate ratio (L) in lumens per square centimeter (1 Lambert = 1 over L x candela / cm2).

⏹ Lamé, Gabriel

French mathematician (1795-1870).
Lamieh studied in Paris, then he traveled to Russia to work as an engineer, and after that he returned to Paris to work as a professor of physics at the Ecole Polytechnic. The cat with an imperfection. He wrote a number of books on mathematical topics, the latest of which was: The Analytical Theory of Heat, La Theorie Analytique de la Chaleur.
It was published in 1861.

⏹ Langevin, Paul Langevin, Paul

French physicist (1872 - 1946)
Langevin emerged during his work at the Sorbonne, and he was an argument on the subject of the molecular structure of gases and the Brownian movement.
in colloidal solutions, etc. He also conducted studies on secondary X-rays, magnetism, and the theory of relativity. Langevin developed a theory of magnetism that could explain many of the problems of Curie's studies. • He explained natural magnetism and diamagnetism (the properties of materials with weak magnetic permeability) in gases. The Langevin theory states that the magnetic susceptibility of gases decreases with the increase in the gas temperature. It is worth noting that Langevin managed to escape from a Nazi prison to Switzerland.

⏹ Landes, Walter Savage
Landis, Walter Savage

American chemist ( 1881 - )
Landes learned in The Hague, Heidelberg, and Aachen, then worked in industrial chemistry as chief technologist for the “American Cyanamide Company,” then vice president of the company.
Landis is best known for his studies of nitrogen fixation in soil, electrosmelting and heavy chemicals. Accordingly, he was awarded the Perkin Medal, and he had previously won the C.I.M.