“pulsar”的概念、定义、习题解题方法及翻译-物理辞典

单词	pulsar
释义	pulsar A celestial source of radiation emitted in brief (0.03 second to 4 seconds) regular pulses. First discovered in 1968, pulsars are believed to be rotating neutron stars. The strong magnetic field of the neutron star concentrates charged particles in two regions and the radiation is emitted in two directional beams. The pulsing effect occurs as the beams rotate. Most pulsars are radio sources (emit electromagnetic radiation of radio frequencies) but a few that emit light or X-rays have been detected. Over 300 pulsars are now known in our Galaxy
随便看	Boyle's law Boyle, Robert Brackett series Bragg's law Bragg, Sir William Henry brass Brattain, Walter Braun, Karl Ferdinand breakdown breaking stress breeder reactor Bremsstrahlung Brewster's law bridge rectifier Brinell hardness Britannia metal British thermal unit broken symmetry bronze brown dwarf Brownian movement brush brush discharge bubble chamber buckminsterfullerene

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。