| 词汇 | sundial |
| 释义 | sundial noun[ C ] uk /ˈsʌn.daɪl/ us /ˈsʌn.daɪl/ a device used outside, especially in the past, that consists of a thin piece of metal attached to a flat surface printed with numbers. It shows the time by the metal making a shadow on the surface as the sun moves across the sky.日晷，日规 Richard Cummins/ Lonely Planet Images/GettyImages Watches & clocks 24-hour clock against the clockidiom alarm alarm clock at/on the stroke of somethingidiom atomic clock clock horology hour hand hourglass lose military time minute hand movement stroke timepiece turn the clocks backphrase twenty-four-hour clock unsynchronized watchband As the Sun moved in the sky, the dark shadow on the sundial showed the change of time. Of course, sundials didn’t work when there was no sun – at night or on a cloudy day! The first clock was the sundial. sundial | American Dictionarysundial noun[ C ] us/ˈsʌnˌdɑɪl/ a device that uses the light of the sun to show the time of day Examples of sundialsundial The other topics include the education of architects, technical devices like sundials and water clocks, mechanical devices for war, and the ethnography of various peoples. Then he learned to draw the various designs of sundials, indicating the hours exactly, and to measure the height of objects by geometric rule. He also mentioned how to apply this method in surveys and how to expand the principles of the gnomon to make sundials. A sundial is a wholly unreliable method of measuring time, and so is a clock. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Improved communications and better clocks revealed another problem with using a sundial as a clock. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Then, what is to happen to the sundials? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 He asked for a miracle, and it was suggested that the shadow might go backwards over the sundial for a considerable number of hours. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 They are trying to judge it with a sundial set the wrong way round. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I remember as a boy looking at a sundial and finding that, having set it correctly, after about a week or a month it moved. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 About 4,000 years ago sundials were developed to show, more accurately than just the guesswork of looking at the heavens, the divisions of the day as the sun moved round. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 He spoke of a sundial. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Reference has been made to sundials. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The location features sculptures, a sundial, interpretive signage, a naked eye observatory and a ceremonial fire pit. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Over the doorway in the porch is a sundial, and the date 1775 is engraved in the apex of its gable. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He also wrote on mechanical devices like the astrolabe and sundial. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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