| 单词 | reflecting telescope |
| 释义 | > as lemmasreflecting telescope reflecting telescope n. Astronomy = reflector n. 3. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > reflecting telescopes reflecting telescope1672 reflector1735 speculum1789 Herschelian telescope1792 Newtonian1820 reflector telescope1840 Cassegrain1888 Nasmyth1960 Nasmyth–Cassegrain1972 1672 Philos. Trans. (Royal Soc.) 7 4004 This Excellent Mathematician [sc. Isaac Newton] having given us..an account of the cause, which induced him to think upon Reflecting Telescopes, instead of Refracting ones, hath thereupon presented the Curious World with an Essay of what may be performed by such Telescopes. 1725 A. Pope Corr. 10 Oct. (1956) II. 330 Have ye not Reflecting Telescopes whereby ye may innocently magnify her Spots and Blemishes? 1842 W. T. Brande Dict. Sci., Lit. & Art 1220/1 In reflecting telescopes the speculum, or mirror, performs the same office that the object-glass does in those of the refracting kind. 1916 Times 19 July 5/3 A 72in. reflecting telescope, the largest yet completed, has just been finished by the Warner and Swasey Company, Cleveland, Ohio. 2001 F. Watson in P. Moore 2002 Yearbk. Astron. ii. 228 Spherical mirrors..cannot be used in conventional reflecting telescopes because they suffer from spherical aberration. < as lemmas |
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