Category: Science
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Steel
Steel is an alloy of iron and carbon in a percentage of the latter element variable between 0.008% and 2.11% by mass of its composition. The branch of metallurgy that specializes in producing steel is called steelmaking or steelmaking. The steel produced before the detonation of the first atomic bombs is low-bottom steel, uncontaminated by…
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Ganymede (moon)
Ganymede, international name Jupiter III Ganymede, is a natural satellite of Jupiter. On the scale of distances to the center of Jupiter, it is the seventh known natural satellite on the planet and the third Galilean satellite. Completing an orbit in approximately seven Earth days, it participates in a so-called Laplace orbital resonance, of the…
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Copper
Copper is a chemical element with atomic number 29, symbol Cu. The simple copper body is metal. Position in the periodic table Symbol Cu Name Copper Atomic number 29 Group 11 Period 4th period Block block d Element family Transition metal Electronic configuration [Ar] 3d10 4s1 Electrons by energy level 2, 8, 18, 1 Atomic…
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Earth
Earth is the third largest planet in order of distance from the Sun and the fifth largest in the Solar System in both mass and diameter. Moreover, it is the only celestial object known to harbor life. It orbits the Sun in 365.256 solar days — a sidereal year — and rotates relative to the…
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Petroleum (Oil)
Oil (in Latin petroleum, from the Greek petra, “rock”, and from the Latin oleum, “oil”), also called naphtha in antiquity, is a mineral oil of natural origin composed of a multitude of organic compounds, mainly hydrocarbons, trapped in particular geological formations. The oil in its reservoir is frequently associated with light fractions that spontaneously separate…
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James Webb Space Telescope
The James Webb Space Telescope (JWST) is a space telescope serving as an observatory operating mainly in the infrared, developed by NASA with the participation of the European Space Agency (ESA) and the Canadian Space Agency (CSA). Larger and more expensive as a space telescope at launch, the JWST is designed to continue the work…
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Sun
The Sun (Latin: Sol) is the parent star of the solar system, around which orbit the eight main planets (including Earth), dwarf planets, their satellites, countless other minor bodies and the dust scattered throughout space, which forms the interplanetary medium. The mass of the Sun, which amounts to about 2 ×1030 kg, alone represents 99.86%…
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Hubble Space Telescope
The Hubble Space Telescope (HST) is a space telescope jointly developed by NASA and ESA and named after the astronomer Edwin Hubble. It operates in the electromagnetic spectrum from the infrared range to visible light and the ultraviolet range. The mirror diameter is 2.4 meters. Type Space telescope Country United States Europe Operator NASAESA COSPAR…
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Pluto (dwarf planet)
Pluto, officially designated as (134340) Pluto (international designation: ((134340) Pluto), is a dwarf planet, the largest known in the Solar System (2,372 km in diameter, compared to 2,326 km for Eris), and the second in terms of mass (after Eris). Pluto is thus the ninth largest known object orbiting directly around the Sun and the…
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Saturn (planet)
Saturn is the sixth planet in the Solar System in order of distance from the Sun, and the second largest in size and mass after Jupiter, which is like it a gas giant planet. Its average radius of 58,232 km is about nine and a half times that of the Earth and its mass of…