المخترعون بالترتيب حسب اسم الشهرة .. الحرف ي .. موسوعة العلمـاء و المخترعين

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

⏹ Jablochkov, Paul

Russian electrical engineer (1847 - 1894)
Yablochkov worked in the field of telegraphic communications and was influenced by the wave of inventions based on the use of electricity, especially in the field of lighting. He invented an electric lamp called the electric candle.

⏹ Jansen (Pantsen), Zacharias
Zacharias Jansen,

Dutch optometrist (from the seventeenth century).
Jansen is known for the invention of the telescope, although he had come to it accidentally while placing two lenses, one assembled and the other concave in a tube • He noticed the events of these two lenses for zooming in and zooming out, i.e. the telescopic effect.
And there are those who say that Hans Lippershy is the inventor of the first telescope.

⏹ Ljungstrôm, B. Ljungstrôm, B.

Swedish engineer (1872 - 1928)
Ingstrom was interested in investing in steam energy, as he carried out important studies related to the use of the steam turbine as an engine for the steam locomotive.

⏹ Iuvara (Ivara), Filippo

Italian architect (1676? - 1736)
Yuvara was one of the most prominent architects interested in the aesthetic aspect and the expression of grandeur and grandeur in buildings. He worked as chief engineer for the King of Turin.