Sea breeze electronic appliances Tidbits: Hubble Space Telescope Hubble Space Telescope (HST), which is chaired by the NASA-built four giant space observatory's first astronomical telescope to buy, but for all the largest astronomical observation projects, investment the largest, the most by a public attention. It is build in 1978 tannoy telescope design which lasted seven years, 1989 to complete, and in April 25, 1990 by the space shuttle launch, costing $ 3 billion. However, due to human causes primary mirror optical system spherical aberration telescope had 2 December 1993 carried out the vast scale of repair work. Successful repair makes HST performance meet or exceed the original design goal, observations show that its resolution is higher than that of large telescopes the ground a few times. We know that in the Earth's surface has a strong layer of the atmosphere, due to the Earth's atmosphere in a variety of particle telescopes and celestial radiation interactions (mainly absorption and reflection), so most of celestial radiation wavelength range can not reach the ground. The image of people to be able to reach the ground band called 'atmospheric windows' telescope Bosma, this 'window' has three. Optical Window: This is the most important window, wavelengths between 300 to 700 nm, including visible light (400 to 700 nm), the optical telescope has been the main tool for astronomical observation ground. Taiyuan sea breeze Electronics Co., Ltd. The company was established in 2002, specializes in wholesale sales telescopes, binoculars, outdoor equipment. Company in good faith, customer-oriented purpose of the first brands to grow Shanxi Yuncheng telescope telescope to thirteen years | telescopes for sale | sea Electronics (certified merchants) are provided by Taiyuan Electronics Co., Ltd. sea breeze. Taiyuan sea breeze Electronics Co., Ltd. (www.tyhfdq.com) is specialized in "astronomical telescopes, binoculars, outdoor equipment," the business, the company adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: SURVEYING.