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单词 star dial
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star dial
star dial n. [after sundial n. and moon dial n.] a device for indicating the time at night from the positions of stars relative to the Pole Star; cf. nocturnal n. 1.
ΚΠ
1723 E. Stone tr. N. Bion Constr. & Principal Uses Math. Instruments vi. 253 It will not be difficult to make a Nocturnal or Star-Dial [Fr. un cadran aux Etoiles], in the following manner.
1847 E. A. Poe Ulalume in Amer. Rev. Dec. 599 And now, as the night was senescent And star-dials pointed to morn.
1969 Jrnl. Brit. Astron. Assoc. 79 346 Mr Daniel then showed slides of many forms of dials. He noted, in particular, the vertical south-facing type, often found on church walls; pillar dials... Moondials, star-dials and nocturnals were also described.
2004 Lee Valley Christmas 2004 Gift Catal. (Lee Valley Tools, Canada) 48/1 The star dial is quite accurate for estimating the time at night. Hold the dial at arm's length and sight the North Star through the centre hole, then adjust the indicator arm in line with the two end stars of the Big Dipper.
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更新时间:2025/1/24 18:02:37