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9 godz. temu · The proper distance—the distance as would be measured at a specific time, ... A map of the superclusters and voids nearest to Earth. Matter, dark matter, ... You, King Gelon, are aware the universe is the name given by most astronomers to the sphere the center of which is the center of the Earth, while its radius is equal to the straight line ...
1 dzień temu · Composite satellite image of Antarctica (2002) Apollo 4 photograph with Antarctica at top, 1967 Antarctica (/ æ n ˈ t ɑːr k t ɪ k ə / ⓘ) is Earth's southernmost and least-populated continent.Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...
9 godz. temu · The Moon is Earth's only natural satellite.It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have over time synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth. . The Moon's gravitational pull – and to a ...
9 godz. temu · The Great Pyramid of Giza is the largest Egyptian pyramid.It served as the tomb of pharaoh Khufu, who ruled during the Fourth Dynasty of the Old Kingdom.Built c. 2600 BC, over a period of about 27 years, the pyramid is the oldest of the Seven Wonders of the Ancient World, and the only wonder that has remained largely intact.It is the most famous monument of the Giza pyramid complex, which is ...
9 godz. temu · A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that when polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. These properties are all associated with having electrons available at the Fermi level, as against nonmetallic materials which do not.: Chpt 8 & 19 : Chpt 7 & 8 Metals are typically ...
9 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 ...
9 godz. temu · Punjab (/ p ʌ n ˈ dʒ ɑː b / ⓘ; Punjabi: [pənˈdʒɑːb] ⓘ) is a state in northwestern India.Forming part of the larger Punjab region of the Indian subcontinent, the state is bordered by the Indian states of Himachal Pradesh to the north and northeast, Haryana to the south and southeast, and Rajasthan to the southwest; by the Indian union territories of Chandigarh to the east and ...
