After the Geissler tube, in 1867, t

After the Geissler tube, in 1867, the cathode tube was invented by the physicist,
Karl Ferdinand Braun. As did the Geissler tube, the cathode ray tube has
a cathode and anode,, but in addition it had a heater to warm a cathode ( which
causes more electrons to boil off the metal of the cathode than an unheated cathode)
and also a fluorescent screen at the end of the end of the tube with the anode.
As in Geissler’s tube, the anode has a positive voltage relative to the cathode,
attracting the electrons pulled along by the electric field. Then the electrons
strike the fluorescent screen. There an electron hits an atom in the fluorescent
screen, which in turn ejects a photon (light) from screen. Two magnetic coils
around the cathode tube focus the beam of electrons into a small spot on the
fluorescent screen and deflect the spot in the direction of a voltage applied to
the deflecting coils. In this way, a spot on the screen can be seen to follow the
deflecting voltage applied to the deflecting coil. In this from a cathode tube is
called an oscilloscope, an instrument very important both to scientific studies
and to electrical engineering. (Later the cathode ray tube would become the
technological basis for television tube displays, when television was invented
in the 1930s.)
Karl F. Braun (1850-1918) was born in Fulda, Germany. In 1872 he obtained a
Ph.D. from the University of Berlin. In 1874, he discovered that a semiconductor
Crystal could change alternating electric current into direct electrical current
(an invention not to be useful for another fifty years).In 1895’ he became a professor
of physics at the University of Strasbourg, andin 1897, he invented the oscilloscope.
Braun also worked on wireless telegraphy, inventing a crystal diode detector for
radio signals (around which the first radio receivers were later developed). In 1909,
Braun shared the Nobel Prize for physics with Guglielo Marconi for the
development of wireless telegraphy.

Results (English) 2:

盖斯勒管，后1867，阴极管是由物理学家卡尔费迪南布劳恩发明的，
。正如盖斯勒管，阴极射线管的阴极和阳极，
，而且它有一个加热器加热阴极（这会导致更多的电子
蒸发阴极的金属比未加热的阴极）
也是一个荧光屏在管端与阳极。
作为盖斯勒管，阳极与阴极的正电压，
吸引电子在电场拉。然后电子
撞击荧光屏。有一个电子撞击原子在荧光
屏幕，这反过来又抛出一个光子（光）从屏幕。两个磁性线圈
在阴极管聚焦电子束在
荧光屏的一个小点，使现场的应用
偏转线圈的电压方向。在这种方式中，屏幕上的一个点可以看出，遵循
偏转电压偏转线圈。本文从阴极射线管，是
称为示波器，一种仪器科学研究
和电气工程非常重要。（后来的阴极射线管，将成为
技术基础的电视显像管显示器，当电视的发明
在1930年代。）
卡尔F.布劳恩（1850-1918）是出世在富尔达，德国。1872他获得了
博士从柏林大学。在1874，他发现一个半导体
水晶可以改变交流电变成直流电
（一项发明没有另一个五十年是有用的）。1895他成为了物理学教授
在斯特拉斯堡大学，在1897，他发明了示波器
。布劳恩也曾在无线电报，发明了一种晶体二极管探测器的
无线电信号（在第一无线电接收机后来开发）。1909，
布劳恩共享物理与guglielo马可尼无线电报技术发展的
诺贝尔奖。