the discovery of the electron, the first subatomic particle to be found. In 1897, Thomson showed that cathode rays were composed of previously unknown negatively charged particles (now...
Despite Thomson’s 1897 announcement of subatomic “corpuscles,” he wasn’t the only one hunting for the electron
사용할 수 없는 위치 ; 가까운 도서관을 표시할 위치를 확인할 수 없습니다. 도시, 우편 번호 또는 지역을 제공하고 위치 액세스를 허용하여 가까운 도서관을 찾을 수 있도록 도와주십시오.
An exhibit by the AIP Center for History of Physics with text, animations and voice about J.J. Thomson's 1897 experiments which helped bring understanding of the electron as a fundamental unit of m...
Thomson 은 음극선관 실험을 통해 원자(atom)를 이루는 입자의 하나인 전자(electron)의 존재를 알아내었다. 1803년 Dalton 의 원자설 이후 1913년 Bohr 의 수소원자 모형이 나오기 까지 100년 남짓한 과학사에 있어서...
Sir Joseph John Thomson, often known as J.J. Thomson, was born on December 18, 1856, in Cheetham Hill, a suburb of Manchester, England, to Scottish parentage. His father, a bookseller, wanted him to be an engineer, but did not have the fee for J.J.'s apprenticeship. So Thomson entered Owens College (now the Victoria University) in Manchester. His professor of mathematics recognized his brilliance, and he was encouraged to apply for a scholarship at Trinity College in Cambridge. He was accepted in 1876 and became a Fellow in 1880, when he became ...
On this day (30 April) in 1897, Joseph J Thomson announced the discovery of the electron. It was the first time a subatomic particle had been discovered. This graphic takes a quick look at his disc...
On April 30, 1897, British physicist J.J. Thomson announced his discovery that atoms were made up of smaller components. This finding revolutionized the way scientists thought about the atom and ha...
In 1897 Thomson discovered the electron and then went on to propose a model for the structure of the atom. His work also led to the invention of the mass spectrograph.
This historical survey of the discovery of the electron has been published to coincide with the centenary of the discovery. The text maps the life and achievements of J.J. Thomson, with particular...