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Of primary importance for a radio telescope is its receiving sensitivity. The offset Gregorian reflector antennas, as used for… Expand The Anthropocene, an informal term used to signal the impact of collective human activity on biological, physical and chemical… Expand ABSTRACT.The South Pole Telescope (SPT) is a 10 m diameter, wide-field, offset Gregorian telescope with a 966 pixel, multicolor… Expand The Atacama Cosmology Telescope was designed to measure small-scale anisotropies in the cosmic microwave background and detect… Expand The Solar Optical Telescope (SOT) aboard the Solar-B satellite (Hinode) is designed to perform high-precision photometric and… Expand The Atacama Cosmology Telescope is a 6 m telescope designed to map the cosmic microwave background simultaneously at 145, 215… Expand
Annually, millions of Muslims embark on a religious pilgrimage called the “Hajj” to Mecca in Saudi Arabia. The mass… Expand 1. Introduction 2. Convicts and settlements 3. Waves of migration to the 1900s 4. Relations with the general community 5. The… Expand The popularity and growth of the “Information SuperHighway” (e.g., the Web) have dramatically increased the number of information… Expand The properties of two-conic reflecting aplanats are analyzed and discussed on the basis of third order aberration theory… Expand