| 单词 | refractor |
| 例句 | “My old trusty refractor. Just came in the mail today. This is what I used to do when I was your age, boys. I’d almost forgotten about it until I came down to your range.” October Sky 1999-04-01T00:00:00Z And it’s no accident, we're using the word “man” since, for 50 years, access to the great refractor was limited strictly to men. This Astronomer Discovered What the Stars Were Made Of, And Few Believed Her Discovery 2023-06-22T04:00:00Z At the time, the largest telescope in the world was the 36-inch refractor at the Lick Observatory near San Jose, California. Astronomy 2016-10-13T00:00:00Z In 1655 Dutch astronomer Christiaan Huygens set up a refractor telescope of his own construction and aimed it at Saturn. The Race to Find Alien Moons 2021-03-31T04:00:00Z According to Beckett, the Trout red refractor is the second rarest version of the Angels’ superstar’s card. Rare Mike Trout rookie card auctioned for nearly $1 million 2020-05-21T04:00:00Z In 2007, after years of study, he built his own 100-millimeter refractor telescope out of spare parts he found around the city. In war-torn Afghanistan, astronomer sees hope and promise in the study of the heavens 2016-02-10T05:00:00Z Orion GoScope 80mm TableTop Refractor Telescope: For great performance at a low price, refractor telescopes have been showing off stars for shekels since the age of Galileo. 12 Must-Brings For Your Next Stargazing Trip 2015-06-23T04:00:00Z Even before the completion of the Yerkes refractor, Hale was not only dreaming of building a still larger telescope but was also taking concrete steps to achieve that goal. Astronomy 2016-10-13T00:00:00Z The scope was nothing fancy, the kind of simple refractor that today would cost about $100. Seeing Saturn for the First Time Really Opens One's Eyes 2013-10-24T12:45:02.417Z In 1821-1823 we find him associated with Sir James South in the re-examination of his father’s double stars, by the aid of two excellent refractors, of 7 and 5 ft. focal length respectively. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z In view of this peculiarity and many others, it is held that a twenty-six-inch refractor is fully equal to any six-foot reflector. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work The largest one ever built was a 49-inch refractor built for the Paris 1900 Exposition, and it was dismantled after the Exposition. Astronomy 2016-10-13T00:00:00Z Galileo’s telescopes were refractors, as are today’s binoculars and field glasses. Astronomy 2016-10-13T00:00:00Z Currently, the largest refracting telescope is the 40-inch refractor at Yerkes Observatory in Wisconsin. Astronomy 2016-10-13T00:00:00Z One problem with a refracting telescope is that the light must pass through the lens of a refractor. Astronomy 2016-10-13T00:00:00Z |
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