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Amazon Underground was an Android app offered by Amazon through which people could freely download and obtain in-app items that they otherwise had to pay money to purchase. [1] Amazon used the catchphrase "Actually Free" to describe the policy, and affirmed that Amazon Underground was not a one-time or temporary offer but was here to stay.
The Very Large Telescope (VLT) is an astronomical facility operated since 1998 by the European Southern Observatory, located on Cerro Paranal in the Atacama Desert of northern Chile. It consists of four individual telescopes, each equipped with a primary mirror that measures 8.2 metres (27 ft) in diameter.
The ETX started out as a 90 mm (3-1/2") Maksutov Cassegrain telescope (first produced in 1996) and took advantage of high volume mass production and simplified optical and parts construction to open a new market for a cheap alternative to the very expensive Questar 3-1/2 Maksutov Cassegrain [1] [2] The ETX "line" has been expanded to 105 mm, and 125 mm Maksutov Cassegrains and achromatic ...
Kitt Peak is the National Observatory of the United States, in contrast to the various benefactor and privately funded telescopes. The largest optical telescope at Kitt Peak is the 4 meter aperture Mayall reflector, and the bureaucracy also supports a variety of other instruments throughout the United States and internationally, but not telescopes such as Hubble, supported by NASA (which is a ...
The Keck I telescope began science observations in May 1993, while first light for Keck II occurred on April 27, 1996. The Keck II telescope showing the segmented primary mirror. The key advance that allowed the construction of the Keck telescopes was the use of active optics to operate smaller mirror segments as a single, contiguous mirror. A ...
The telescope has made appearances on an episode of the Discovery Channel TV show Really Big Things, National Geographic Channel Big, Bigger, Biggest, [14] and the BBC program The Sky At Night. [citation needed] The BBC Radio 4 radio documentary The New Galileos covered the LBT and the James Webb Space Telescope. [15]
The 1.3-meter McGraw-Hill Telescope, with a 1.27-meter clear aperture, is an aluminum-coated Cer-Vit (low thermal expansion glass) telescope. Its usable foci include f/7.5 and f/13.5. [ 6 ] The telescope was originally installed at Stinchfield Woods, Michigan in 1969, and moved in 1975 to MDM.
Imaging can be done regardless of the location of the user or the telescopes they wish to use. The digital data collected by the telescope is then transmitted and displayed to the user by means of the Internet. An example of a digital remote telescope operation for public use via the Internet is The Bareket Observatory.
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