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

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

⏹ Al-Zakher, Abdullah bin Zakharia (Al-Zakher)
al - Zakhir Abdallah "

Arab engineer and industrialist (1680-1748)
Abdullah al-Zakhir Hamwi was born from Aleppo origin, from a family that specialized in drafting, engraving, engraving and painting. Abdullah mastered his family's profession in addition to casting steel and making water and mechanical watches.
He established with his brother a printing press in Aleppo, to set up another one for himself in Deir Yuhanna in 1733. He began his work in it by printing a book called Mizan al-Zaman. The most important thing that distinguished his printing press was that most of the machines, letters, foundries, filters, inkwells, and presses for engravings and decorations, whether in wood, copper, or lead, were designed and made by him.
Abdullah Al-Zakher left a number of books of various orientations, including attempts in theology, logical principles and sermons · He died in the Monastery of St. John, and his printing press is still preserved in the Monastery of Al-Sayegh.

Zamenhof, Lazarus Ludwik
Zamenhof, Lazarus Ludwig

Polish ophthalmologist and linguist
( 1859 - 1917 )
Zamenhof practiced ophthalmology in Warsaw. He was enthusiastic about a language that did not belong to a particular nation, designed to serve global peace and understanding, so he invented the artificial language known as Esperanto in 1887. A number of analysts attribute this enthusiasm to the isolation complex experienced by the Jews of his religion at that time. (compare with Johann Becker).

⏹ Zvorykin, Vladimir Cosima (Cosma). Zworykin , Vladimir Kosma

American electrical engineer and Russian inventor (1889 - )
Zvorykin was born and educated in Russia, and immigrated to America one year after the end of World War I. He is now one of the most prominent engineers in the field of television engineering, so that he is considered an authority in this field.
Invented the year 1934 TV screen cockpit.

⏹ Zekh, Franz Seech, Franz

Contemporary Austrian chemist.
He invented the ink used in the dry pen, which is mainly composed of glycerine. The writing ball pen (instead of a quill) was invented in the last century, and was improved by two Hungarian inventors, the Biro Brothers. Biro.

⏹ Siemens, Ernst Vernervon
Siemens, Ernst Werner Von

German engineer and electrician (1816-1892)
He is the brother of Sir William. He has many electrical engineering achievements, the most important of which are: the development of lightning, and the self-electric generator. He participated with his brother in the establishment of «Siemens-Helske» in Berlin in the year 1847, which is the German company specialized in the electrical industries of international fame.
The name Siemens gave the unit of electrical tolerance and is equal to the reciprocal of the unit of resistance
1 siemens = 1 ohm
It is noted that the name Siemens in Arabic is called Siemens, influenced by the English pronunciation of the word.
An early electric motor, from 1855.

⏹ Siemens, Sir William (Carl Wilhelm von)
Sir William and Siemens (Karl Wilhelm Von)

German engineer and inventor, British settler (1823-1883)
The British say that Siemens immigrated to their country to take advantage of the progress of the British patent law · He became a fellow of the British Royal Society until he headed it a year before his death. Invented and recorded the differential differential regulator
He also invented a device to measure the depths of water or
Mmia, a gravitational bathometer. Siemens was the first to use electric fusion • He also invented a dynamometer in alternating current circuits, and he has many other important works that are too numerous to mention.