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George Ellery Hale (June 29, 1868 – February 21, 1938) was an American astrophysicist, best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes; namely, the 40-inch refracting telescope at Yerkes Observatory, 60-inch Hale reflecting telescope at Mount Wilson Observatory, 100-inch Hooker ...
Petach made significant contributions to the development and advancement of cryocoolers, particularly in space applications. [9] Cryocoolers are devices that maintain extremely low temperatures for sensors in satellites and space telescopes, enabling them to function properly for long-term missions and capture high-quality images of Earth and deep space.
The stunning successes and discoveries made there using the world's largest telescopes, the 100-inch Hooker Telescope and 200-inch Hale Telescope, spurred the move to ever higher sites for the new generation of observatories and telescopes after World War II, along with a worldwide search for locations which had the best astronomical seeing.
The prison camp set was built on the John Show Ranch in Woodland Hills, on the southwestern edge of the San Fernando Valley. [5] The shoot began in February 1952, during the rainy season in California, providing plenty of mud for the camp compound. [6] It is now the location of a meetinghouse of the Church of Jesus Christ of Latter-day Saints.
Two telescopes operate at TMO: The 1.02 m (40 in) Pomona College Telescope is a Cassegrain reflector built at Pomona College. It first became operational in 1985, and had new mirrors installed in 1996. [5] [6] A 0.6 m Ritchey-Chrétien reflector built by Astro Mechanics was installed in 1966. It is attached to an off-axis German equatorial ...
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