单词	pulsar
释义	pulsar /ˈpʌlsɑː / noun Astronomy A celestial object, thought to be a rapidly rotating neutron star, that emits regular pulses of radio waves and other electromagnetic radiation at rates of up to one thousand pulses per second.Black holes, the cosmic microwave background, pulsars, neutron stars, gravitational lenses, gravity waves - these are just a few of the phenomena that would make no sense without general relativity.... These emanations come from rapidly spinning neutron stars called pulsars - rotating beacons that periodically send energy in the direction of the earth. The object is being stimulated by jets from a rapidly spinning (about thirty times a second) neutron star called a pulsar. Origin From puls(ating st)ar, on the pattern of quasar.
随便看	man of the cloth man of the house man of the match man of the moment man of the world man-of-war man-of-war bird man-of-war fish manoir Manola manoletina Manolo Blahnik manometer manometric manometric capsule ma non troppo manool manor man orchid man orchis manor court man (or go to) the barricades manor house manorial manorialisation

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