موسوعة العلمـاء و المخترعين .. المخترعون بالترتيب حسب اسم الشهرة .. الحرف ٢_أ

Encyclopedia of Scientists and Inventors..the inventors in order according to their nickname..the letter 2_a

⏹ Edison, Thomas Alva
Edison, Thomas Alva

American inventor (years 1847 - 1931)
Perhaps Edison is one of the most famous inventors
Due to the important effects left by his inventions on contemporary life. He is one of the most generous inventors of his time, as the patents he registered in his name amounted to 1,300 inventions. His educational attainment was very little.
And he went out into the arena of life while he was still a boy. Then he worked as a worker in the telegraph office, and his interest in electrical issues began to grow very quickly. • His inventions began by making a machine to record votes in polling operations. • Then his inventions were rolled out on his own or with the participation of others.
Among his most famous inventions were the gramophone, the light bulb, and the motion picture projector, which Edison did not estimate its value at that time, in addition to his invention of the telegraph system, the duplex, then the quadruplex, then the sextuplex.
Edison established himself a sophisticated laboratory in 1876 and a factory to manufacture his inventions in Mendopark in the US state of New Jersey.
Edison presents some of his results to Ford (centre).
A gramophone (phonograph) produced by Edison.

⏹ Argan, Argand Aimé

Swiss chemist (years 1755 - 1803)
>>) Argan invented the oil lamp, famous for the Argan stove. He made the wick in the form of a ring, surrounded it with a glass cylinder as a chimney, causing an air current that increases the glow of the filament, thus achieving a lamp with constant and sufficient lighting.

⏹ Archimedes

Greek inventor, physicist and mathematician (year 287 - year 212 BC) ·
Archimedes is the inventor of Archimedes' snail (tambour) used in irrigation, he established the rule of floating bodies in liquids, and the discoverer of the law of the simple lever (crowbar).
His story leaves its impact on schoolchildren since childhood, as the teacher tells them how he got out of his bathroom naked shouting: I found her!! I found it !!! Which he found was the basis for the floating of objects • Distinguished by his genius. Between the density of copper and the density of gold, he got out of his ordeal, as he was in the place of the test, he was killed by a drunken Roman soldier while he was solving one of the mathematical problems in the open air, during the siege of the Romans to dance in Sicily.
- Archimedes' screw, for raising water still has uses in irrigation so far in a number of underdeveloped areas.