A recipient of the Tamil Nadu State Award for popularising science, Devadas manufactures astronomical telescopes and has established an engineering firm in Chennai for the production of telescopes in India.
42.
At the time of the 1986 return ( technically, " apparition " ) of the comet, astronomical telescopes and related instrumentation were vastly more sensitive than for any previous apparition.
43.
Also in the US, Canadian Willard Boyle working at the Bell Labs invented the charge-coupled device ( CCD ) which became the key technology for digital photography and improved astronomical telescopes.
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The company also makes Revere Ware, Pyrex and Corning Ware cookware, Steuben crystal, fiber-optics cables for the telecommunications industry, glass for flat screens in personal computers and mirrors for astronomical telescopes.
45.
Note that both astronomical telescopes as well as simple microscopes produce an inverted image, thus the equation for the magnification of a telescope or microscope is often given with a minus sign.
46.
In his will, he bequeathed the articles in the museum at Farnham in trust to the Royal Dublin Society, and his astronomical telescope in trust for uses in the interest of astronomical science.
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As the world's only flying astronomical telescope nears the end of its long and productive life, it has begun targeting the most dangerous prey it has ever hunted : the mysterious little planet Mercury.
48.
An astronomical telescope are not constructed to focus on objects closer than " infinity "; therefore it cannot resolve details smaller than its main mirror ( 2.4 m for Hubble ) at any distance.
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Takahashi pioneered the use of fluorite crystal in place of one of the glass elements in the objective lens of an astronomical telescope, although this material had previously been used in other optical devices.
50.
Depending on the design of the optical tracking system, the optical imaging system can vary from as simple as a standard digital camera to as specialized as an astronomical telescope on the top of a mountain.
