knolik - knolik |
acheson, edward goodrichЗначение термина acheson, edward goodrich в knolikacheson, edward goodrich - Acheson, edward goodrich (1856-1931) acheson, edward goodrich - American chemist. Born at Washington, Pennsylvania. March 9, 1856, he was educated at Bellefonte Academy, Pennsylvania. In 1886 he discovered the artificial abrasive, carborundum, which he prepared by submitting a mixture of clay and coal to the intense heat of an electric arc. This material is now made on a large scale at a factory which obtains its power from Niagara Falls. Afterwards he prepared artificial graphite from which electrodes and the lubricants aquadag and oildag are made. Another product of the electric furnace he invented is siloxicon, from which crucibles are made. He died July 6, 1931. Рядом со словом acheson, edward goodrich в knolik
Статья про acheson, edward goodrich была прочитана 493 раз |
Our friends, knolik encyclopaedia knolik.com |
|||||