| 单词 | bow shock |
| 释义 | > as lemmasbow shock bow shock n. (also more fully bow shock wave) (a) Physics the shock wave formed in front of an object moving at or near supersonic speed through a fluid medium; cf. bow-wave n. at Compounds 3 (now rare); (b) Astronomy the shock wave formed where the magnetosphere of a planet or other body collides with the solar wind; cf. magnetopause n. ΘΚΠ the world > the earth > water > flow or flowing > wave > types of waves > [noun] > other way1578 wake1753 clean, clear breach1867 feather-spray1867 south-western1872 bow-wave1877 gravity wave1877 blind roller1888 gravitational wave1899 Kelvin wave1922 rooster tail1934 slide1935 bow shock1938 beacher1956 the world > matter > physics > mechanics > types of motion > [noun] > wave > types of wave long wave1792 internal wave1804 stationary wave1833 solitary wave1838 standing wave1845 travelling wave1845 pressure wave1871 ripple1871 surface wave1887 sine wave1893 Rayleigh wave1903 shock wave1907 spherical wave1907 Love wave1924 bow shock1938 Rossby wave1951 soliton1965 1938 Jrnl. Royal Aeronaut. Soc. 42 195 (caption) Photograph of a bullet in flight showing bow shock wave. 1950 Proc. Royal Soc. A. 201 92 Only bodies of revolution of finite length are considered here, but otherwise the arguments apply quite generally, that is, shell shapes are included and the bow shock may be detached. 1962 W. I. Axford in Jrnl. Geophys. Res. 67 3791 Since the solar wind is highly supersonic near the earth, a collision-free bow shock wave should be a permanent feature of interplanetary space on the sunward side of the magnetosphere. 1993 Coloradoan (Fort Collins) 11 Mar. a5/4 Cordes and his colleagues think the nebula forming in the star's wake is generated by the ‘bow shock’ of the star and its magnetic field plowing through the interstellar medium at tremendous speed. 2010 D. A. Rothery Planets: Very Short Introd. iii. 81 The paths of charged particles in the solar wind (chiefly protons and electrons) are controlled by the Sun's magnetic field, until they hit the ‘bow shock’ of a planet's magnetosphere, which diverts them past the planet. < as lemmas |
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