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

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

⏹ Rubesold, Johann Georg
Repsold, Johann Georg

German engineer and tool maker (1770-1830)
Rubesold designed a pendulum named after him for use in measuring gravity. And he made several demographic attempts that paved the way for the manufacture of telescopes with circles. Rubzold held the position of chief of firefighting in Hamburg. And it happened that a wall collapsed in it in a fire accident, and he died burnt.

⏹ Richardson, Sir Albert Edward Richardson, Sir Albert Edward

British architect (1964 - 1890)
Richardson presided over the Royal Academy, and enjoyed a number of social and scientific honors for his outstanding architectural achievements.

⏹ Ramsey, James Rumsey, James

American inventor and mechanical engineer (1792-1743)
It is believed that he was the first to build a steam boat (see Fitch 1743 1798). Ramzi thought at first of running the boat by jet propulsion. He came to England and tried a steam boat in the waters of the Thames River, but he did not extend the time to complete his experiment, as he died before that.

⏹ Roberts Austin, Sir William Chandler Roberts - Austin, Sir William Chandler

English metal foundry (1843 - 1902)
Roberts-Austin taught foundry science at the Royal School of Mines and also held the position of head of the Mint • He was a member of the British Royal Society · Roberts-Austin drew attention to the phenomenon of diffusion in gold and lead if polished plates of them were placed in contact.
Design a self-propelled device to measure the temperature of smelting furnaces.

⏹ Roscoe, Sir Henry Enfield
Roscoe, Sir Henry Enfield

English chemist (1833 - 1915)
Roscoe learned in London at the hands of the Scottish chemist: Graham. He also studied in Heidelberg, Germany, at the hands of the German chemist Benzen, where Benzen supervised Roscoe's studies in quantum photochemistry. In cooperation with Bunsen, he also invented the actinometer, a device for measuring solar radiation. His research chemical actinometer. Valuable, has held high positions in the state and the university.

Romkorff, Heinrich Daniel
Ruhmkorff, Heinrich Daniel

German inventor and maker of tools (1803 - 1877)
Romkurf was interested in electricity, and while he was in France, he manufactured the coil known by his name: Romkurf coil, which is technically inspiring and widely used in the production of high electrical voltage.