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1An optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified.
spyglass, glassView synonyms
- ‘Today's largest optical telescopes now have collecting apertures that are 10 m in diameter - some 500 times that of Galileo's first effort.’
- ‘Even though supernovas can appear as bright as galaxies when viewed with optical telescopes, this light represents only a small fraction of the energy released.’
- ‘His novel idea was to use both mirrors and lenses in his telescope.’
- ‘Now we have evidence from observations, images, with large telescopes and the Hubble space telescope that show bright and dark regions on Titan's surface.’
- ‘He was particularly famous for his optical instruments, such as the lenses used in telescopes, that were highly valued among European physicists.’
- ‘When most people think of astronomy, they envision gazing at the stars through an optical telescope, a system of mirrors and lenses that collects light.’
- ‘Observing astronomical objects in the infrared means that we can see much more than we can with optical telescopes.’
- ‘His current work uses lasers to help combine images from distant telescopes.’
- ‘The occluding spot is placed at the focal plane of the telescope and prevents light from striking any optical elements further down in the optical path.’
- ‘Given that most asteroids appear merely as pinpricks of light in our telescopes, how can we fathom their dimensions?’
- ‘He overcame this by designing a telescope based on a mirror.’
- ‘Spectrographs are devices used by astronomers to break up the light collected by a telescope into its various colors, or wavelengths.’
- ‘Italian mathematician and astronomer Galileo Galilei used the first optical telescope, a refractor, in 1610.’
- ‘We use electromagnetic waves to detect and image objects: light waves for optical microscopes and telescopes, electrons for electron microscopes and radar.’
- ‘Other stations showed images from the few optical telescopes in Earth orbit.’
- ‘This was carried out using an eyepiece from a telescope, an optical instrument with a longer pedigree than the microscope.’
- ‘Using his experimental abilities, he ground lenses and assembled a telescope.’
- ‘In recent years he has focused on astronomy, using lasers to help combine images from distant telescopes, effectively creating a huge virtual lens.’
- ‘He was particularly interested in the ideas of improving telescope design by using lenses made up of two different types of glass.’
- ‘The most obvious way in which we can escape from the physical limitations of our eyes is to employ a microscope, magnifying glass, or optical telescope to improve magnification and resolution.’
- 1.1short for radio telescope
- ‘"Using them in this way gives us the equivalent of an 85-meter telescope.’
- ‘Tiny, aligned telescopes can send and detect single photons sent through the air.’
- ‘Once they are all in place, they will form the largest radio telescope on Earth.’
- ‘The two telescopes monitored frequencies outside the range of mobile phones and satellite television so would pick up least interference.’
- ‘A new space telescope might provide the answer.’
- ‘A suite of infrared, wide-field telescopes installed along the length of the aircraft's fuselage detects the missile plume at ranges up to several hundred km.’
1(with reference to an object made of concentric tubular parts) slide or cause to slide into itself, so that it becomes smaller.no object ‘five steel sections that telescope into one another’
slide together, collapseView synonyms
- ‘It has to be designed to be crushed, bent, telescoped and twisted yet capable of popping open and straightening out again without breaking.’
- ‘A common criticism of telescoping posts is that they affect seat height; make sure you readjust your seat height to compensate for the sag of the post under your riding weight.’
- ‘The telescoping ladder is now available in boats made by eight other builders.’
- ‘They are produced in sections that can be telescoped for portability.’
- ‘The chairs telescope into each other so that large numbers can be transported with ease.’
- ‘The doubler plate is very securely riveted to the boiler barrel but close inspection shows that water has been leaking for some time and has cause serious external corrosion of the outer surface of the barrel - particularly where the two barrel sections telescope into each other.’
- ‘From behind the wheel, Maxima is all luxury car, from the power telescoping steering wheel to the comfortable seats.’
- ‘One other item of big news with this camera is speed, despite having a telescoping lens system we have timed start-up as just 0.9 seconds if the lens was left at wide angle at power off and around 1.9 seconds if at telephoto.’
- ‘They were made to be driven into the mud on a telescoping rod, giving the appearance of a brant flying above the water.’
- 1.1with object Crush (a vehicle) by the force of an impact.
crush, concertina, squash, compact, compressView synonyms
- ‘The dining car of the wrecked train jumped to the side track and ran into the freight engine, which telescoped the car.’
- ‘He remounted his motorcycle and paused momentarily to look down into the dried bed of the klong at the smoking telescoped vehicle there, as the hospital staff swarmed all over it.’
- ‘The locomotive, tender, and first three cars derailed, and the express car was partially telescoped by the tender.’
- ‘An engine had telescoped two cars, and the second car had telescoped the car in front of it.’
- 1.2with object Condense or conflate so as to occupy less space or time.‘a way of telescoping many events into a relatively brief period’
condense, shorten, reduce, abbreviate, abridge, summarize, precis, abstract, boil down, shrink, encapsulateView synonyms
- ‘But their timescales, given to telescoping when they make demands of others, have always been elastic with regard to requirements of themselves.’
- ‘Their budding relationship and accumulating discoveries, crudely telescoped in this screenplay, unfold in laborious parallel with the flashback 19 th-century affair.’
- ‘The sentiments expressed may be dramatic, but that is what happens when four years of your life are telescoped down into 13 seconds of breath-taking speed and agility.’
- ‘Furthermore, I feel it is perfectly legitimate, in the interests of creating a good drama, to telescope events or create symbolic scenes.’
- ‘At the risk of unduly telescoping or compressing modern Malaysian history, just two political turning-points will now be identified.’
Mid 17th century: from Italian telescopio or modern Latin telescopium, from tele- ‘at a distance’ + -scopium (see -scope).
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