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7 godz. temu · For the purpose of measurement, the Sun's radius is considered to be the distance from its center to the edge of the photosphere, the apparent visible surface of the Sun. By this measure, the Sun is a near-perfect sphere with an oblateness estimated at 9 millionths, which means that its polar diameter differs from its equatorial diameter by ...
7 godz. temu · A near-Earth object (NEO) is any small Solar System body orbiting the Sun whose closest approach to the Sun is less than 1.3 times the Earth–Sun distance (astronomical unit, AU). This definition applies to the object's orbit around the Sun, rather than its current position, thus an object with such an orbit is considered an NEO even at times when it is far from making a close approach of Earth.
7 godz. temu · Addis Ababa (/ ˌ æ d ɪ s ˈ æ b ə b ə /; Oromo: Finfinnee, lit. 'fountain of hot mineral water', Amharic: አዲስ አበባ, lit. 'new flower' [adˈdis ˈabəba] ⓘ) is the capital and largest city of Ethiopia. In the 2007 census, the city's population was estimated to be 2,739,551 inhabitants. Addis Ababa is a highly developed and important cultural, artistic, financial and ...
7 godz. temu · Recreational scuba diver The undersea kelp forest of Ana Capa off of the coast of Oxnard, California Diver looking at a shipwreck in the Caribbean Sea. Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance. The name scuba is an anacronym for "Self ...
7 godz. temu · Map of São Tomé by Johannes Vingboons (1665). The islands making up São Tomé and Príncipe were formed around approximately 30 million years ago due to volcanic activity in deep water along the Cameroon Line.Over time, interactions with seawater and periods of eruption have engendered a wide variety of different igneous and volcanic rocks on the islands with complex assemblages of minerals.
