单词	redshift
释义	redshift noun red·​shift ˈred-ˈshift  : a displacement of the spectrum of a celestial body toward longer wavelengths that is a consequence of the Doppler effect or the gravitational field of the source also : a measurement of a celestial body's redshift equal to the ratio of the displacement of a spectral line to its known unshifted wavelength and used especially to calculate the body's distance from earth redshifted ˈred-ˈshif-təd  adjective Example Sentences Recent Examples on the Web Multiple galaxies and other celestial objects are visible within the images, but some of the most notable include a spiral galaxy with a redshift of z=0.16. Joshua Hawkins, BGR, 26 Aug. 2022 But the striking thing is that there is data for a galaxy at an extremely large redshift (z = 16.7, for those who understand these things). John Timmer, Ars Technica, 26 July 2022 The higher the redshift, the farther away – and back in time – the source. Julia Musto, Fox News, 22 July 2022 For example, a light bulb that emits pure violet light, if placed in a region of the cosmos roughly corresponding to a redshift of 1 as seen from Earth, would appear as deep red. Fabio Pacucci, Scientific American, 1 July 2022 Light from more distant galaxies takes longer to reach us, and the expansion of the universe stretches the wavelength of this ancient light toward the red end of the visible spectrum: the more distant the galaxy, the larger the cosmic redshift. Ben Brubaker, Scientific American, 4 May 2022 Watching the redshift allows astronomers to determine how far away the light came from. Joshua Hawkins, BGR, 18 Jan. 2022 This is why measuring the redshift of any one individual object isn’t very reliable for telling you anything in particular about the Universe. Ethan Siegel, Forbes, 1 Sep. 2021 This gravitational redshift has been measured for stars orbiting black holes, for light traveling vertically in Earth’s gravitational field, from the light coming from the Sun, and even for light passing through growing galaxy clusters. Ethan Siegel, Forbes, 25 May 2021 See More Word History First Known Use 1923, in the meaning defined above
随便看	anthracnoses anthraco- anthracocide anthracolithic Anthracomarti anthracomartian anthracosaur anthracosauroid Anthracosaurus anthracoses Anthracotherium anthraflavic acid anthraflavin Anthraflavone GC anthragallol anthranilate anthranilates anthranilic acid dhurrin dhutis dhya dhya mountains dhyana dhílos dhār

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。