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Transcript of Crowson/Sherman Physics
It uses a convex lens to bend light and bring images into focus
As mentioned earlier refracting telescopes are inhibited by chromatic aberration-when wave lengths focus at slightly different points Diagram Diagram Reflector Telescope Convex Mirrors Concave Mirrors Refraction Diagram Convex Mirrors Experiment Reflection Experiment Experiment Refraction Reflection Telescopes Reflection telescopes use concave mirrors which reflect light back at a focus point. After the light reflects of the concave mirror it reflects of a secondary mirror before traveling down the eyepiece. Interference Reflection Diagram Waves and Telescopes By Nate Crowson and Zach Sherman Concave Mirrors Experiment Radio Waves Reflection telescopes are superior to refracting telescopes because they are not affected by chromatic aberration because reflected light does not disperse according to wavelength Microwaves Cosmic Background Explorer Infrared Spitzer Space Telescope Visible Light Ultraviolet The Ultraviolet Imaging Telescope The telescopes that use visible light are the typical household telescopes. These telescopes magnify the images provided by the visible light of the universe. These telescopes are ground based. These telescopes are inhibited by light pollution ie: large cities, which is a disadvantage. X-ray MAGIC II This telescope uses the faint light given off by gamma ray particle "showers" in order to create an accurate image of the galaxies. This faint light is given off when the gamma rays come in contact with other materials. Gamma particals move really fast. Refraction Telescope Diagram KSC Radio Telescope Radio Telescopes Radio telescopes are used to study naturally occurring radio waves (part of the electromagnetic spectrum) -in star, galaxies, etc...
Radio waves reflect of the giant dish and then focus on a tip-which is the central focus point the dish. Accuracy of dish depends on several external factors such as, shape of dish, and reflecting surface. Radio telescopes are land based. Cosmic Background Explorer This satellite is used to investigate the cosmic microwave background radiation (CMB) that is present in space. CMB is the the thermal radiation emitted by the universe when the Big Bang occurred. Cosmic Background Explorer is a space based telescope that measures (CMB) radiation. FIN Spitzer Space Telescope The Spitzer Space Telescope works by using heat-sensitive infrared lenses to detect and create images of the heat from distant stars and cosmic events. As you may be able to guess it measures infrared light-another part of the electromagnetic spectrum. These telescopes are primarly ground based but some are flown in aircrafts to gather high altitude readings. Visible Light XRT XRT This telescope uses the x-rays emitted by distant planets, stars, and black holes to create clear and crisp photos. In order to get above the earths atmosphere they are often mounted at high altitudes or on artificial satelites. Gamma Ray Telescope MAGIC II Standard Telescope Diffraction Ultraviolet Imaging Telescope (UIT) This telescope contains two UV detector systems: one for the far UV and one for the near UV. This UV radiation is created from the burning stars. When starts burn they emit ultraviolet light which the telescope gathers. Diagram Diagram Interference Experiment Diffraction Experiment Convex Lens Concave Lens Longitudinal Waves