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Radio telescopes are often placed in valleys because the surrounding hills and mountains shield them from radio interference generated by human activities. Valleys provide a natural barrier that helps to block out unwanted signals and enhance the sensitivity of the telescopes to detect faint radio signals from space. Additionally, valleys can also help to reduce the impact of wind and atmospheric disturbances on the telescopes, leading to clearer observations.
Oil is used to reduce friction.
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Yes, astronomers use ground-based X-ray telescopes to study high-energy phenomena in space. These telescopes are typically located at high-altitude sites to reduce interference from Earth's atmosphere and are used to observe sources such as black holes, neutron stars, and supernova remnants.
A triangular prism reflects light at specific angles. Many are used in equipment such as binoculars and telescopes to reduce their physical size.
A triangular prism reflects light at specific angles. Many are used in equipment such as binoculars and telescopes to reduce their physical size.
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To formulate into or reduce to a system: "The aim of science is surely to amass and systematize knowledge"
Chromatic aberration can be a problem for astronomers using refracting telescopes and camera lenses, as it can cause color fringing and reduce the image quality by not focusing all colors to the same point. Reflecting telescopes, which use mirrors instead of lenses, do not have this issue.
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What did Bob Taylor, who was in charge of computer science at ARPA, need to do in order to reduce the cost of different computer science projects at universities across the country?
Astronomers can address issues with Earth-based telescopes by using adaptive optics to correct for atmospheric distortion, selecting observing sites at high altitudes or in deserts with stable air, and designing telescopes with larger mirrors to gather more light and improve image resolution. Additionally, they can employ techniques like interferometry to combine light from multiple telescopes for enhanced resolution.