موسوعة العلمـاء و المخترعين .. العلمـاء بالترتيب حسب اسم الشهرة .. الحرف ٤_م

Encyclopedia of Scientists and Inventors.. Scientists in order according to their nickname.. The letter 4_M

⏹ Meloni, Macedonio
Macedonio Meloni

Italian physicist (1798 - 1854)
Meloni worked as a physics professor in Parma, then had to flee to France for political reasons.
He returned to Naples and worked as director of the Vesuvius Observatory.
Molony is best known for his studies on thermal radiation. He designed devices for experimental research on the reflection of thermal radiation. He invented two galvanometers and a thermal accumulator to measure the intensity of thermal radiation. He also invented the word diathermancy to refer to the capacity of infrared radiation (i.e. thermal radiation). He studied the effect of various materials on the radiation emitted from them.

Mendel, Gregor Johann
Mendel Gregor Johann

Austrian biologist (1822-1884)
. Mendel learned the natural sciences in religious schools. And he became a monk. He carried out important research on genetics, especially in plants, and on the pea plant in particular. He could not achieve fame if he was not able to generalize, and Mendel remained until the end of his days bewildered by these results and died while he was disappointed in his work. In evolution, in terms of biological importance.
Many of his views and theories became clear after his death.

⏹ Mendel, Lafayette Benedict
Benedict Mendel, Lafayette

American chemist (1872 - 1935)
Mendel studied at Yale, Breslau, and Freiburg, then he was promoted to Professor of Functional (Physiological) Chemistry at Yale, and conducted studies
Authentic and abundant on vitamins, digestion, metabolism (metabolism) and growth physiology.
Mendel discovered vitamin 1 (A), and he also discovered the function of vitamin C (C).

⏹ Mendeleev Dmitry Ivanovich
Mendelejeff, Dmitri Ivanovitch

Russian chemist (1834 - 1907)
Mendeleev was the fourteenth child of a harsh Siberian teacher who lived very hard in his upbringing.
His mother brought him by road thousands of kilometers to Moscow to enter the university there, but the University of Moscow (Caesarean) refused to accept him because he was born in Siberia • He succeeded in entering a college for teachers in St. Petersburg. He soon became a professor at the University of Petersburg after working at the University of Heidelberg and others. But he resigned from that position because of a power struggle in 1890.
In 1893 he became director of the Office of Weights and Measures.
The most famous of Mendeleev's achievements is the periodic table, the periodic law of the elements, named after him. Which is rightly considered a revolutionary achievement in the science of chemistry.
Mendeleev's predictions, based on the table, and filling two blanks in the periodic table with the discovery of gallium and scandium, helped spark interest in this wonderful arrangement of the elements.
Mendeleev's most famous book: Principles of Chemistry.

Moberty, Pierre Louis Moreau
Maupertius, Pierre Louis Moreau de

French mathematician and astronomer (1698-1759)
Mopperty joined the army and occupied his spare time with the study of mathematics, and then undertook a campaign to measure the degree of (astronomical) meridian in Lapland.
Once captured by the Austrian forces, Mopperty left the army for Berlin to take up the post of president of the Royal Academy of Sciences. Moberty was a supporter of Isaac Newton, who had discovered the principle of least action.
Mopperty suffered from many disagreements within the academic atmosphere. As for the results of his campaign to Lapland, they were contained in his book entitled: Sur la fiqure de la terre, in which he referred to the flatness of the earth in the polar regions.