Mercury is the smallest terrestrial planet in the solar system‚ about a third of the size of Earth It has a thin atmosphere‚ which causes it to swing between burning and freezing temperatures Mercury is also a dense planet‚ composed mostly of iron and nickel with an iron core Its magnetic field is only about 1 percent that of Earth’s The surface of Mercury is similar to that of the Moon; it has many deep craters and is covered by a thin layer of tiny particle silicates The surface temperature
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used are the mercury cell‚ the diaphragm cell and the membrane cell. Each of these processes differ in the methods of production and also differ in the way the
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food‚ drink‚ the air I breathe‚ and the products that touch my skin—my own secret stash of compounds acquired by merely living. It includes older chemicals that I might have been exposed to decades ago‚ such as DDT and PCBs; pollutants like lead‚ mercury‚ and dioxins; newer pesticides and plastic ingredients; and the near-miraculous compounds that lurk just beneath the surface of modern life‚ making
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non-stellar objects. It formed 4.6 billion years ago from the gravitational collapse of a giant molecular cloud. The vast majority of the system’s mass is in the Sun‚ with most of the remaining mass contained in Jupiter. The four smaller inner planets‚ Mercury‚ Venus‚ Earth and Mars‚ also called the terrestrial planets‚ are primarily composed of rock and metal. Sun The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic
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that all things are composed of air‚ earth‚ fire‚ and water. Each of these were represented by different elements‚ such as sulfur‚ salt‚ mercury‚ and‚ ideally‚ gold. Other ideas held by alchemists were that each of the known elements were represented by heavenly bodies. Gold was earth’s representation of the sun‚ silver for the moon‚ mercury for the planet Mercury‚ copper for Venus‚ iron for Mars‚ tin for Jupiter‚ and lead for Saturn.
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nine planets or Grahas. These include Mercury‚ Venus‚ Mars‚ Jupiter‚Sun‚ Moon‚Saturn Rahu and Ketu‚ which are astronomical points formed where the moons orbit intersects the apparent path of the Sun around the earth. Each planet is considered to be having masculine‚ feminine or neutral characteristics as well . Grahas and their equivalents in Western Astrology Indian Grahas Western Names Sex Ravi Sun Masculine Chandra Moon Feminine Kuja Mars Masculine Budha Mercury Neutral Guru Jupiter Masculine Sukra
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mixture of mercury with at least one other metal. The amalgam filling has been used for restorative method for many years due to its low cost‚ durability‚ ease of application‚ strength and bacteriostatic effects. The environmental concerns are regarding mercury emissions during preparation and from waste amalgam upon cremation of deceased individuals. Amalgam filling: Dental Amalgam is the most commonly used restorative material used for dental fillings. This contains a mixture of mercury with at
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solar system are Mercury‚ Venus‚ Earth‚ Mars‚ Jupiter‚ Saturn‚ Uranus‚ Neptune and Pluto. There are also many other minor planets‚ which are also in our solar system‚ but they are unimportant compared to the nine major planets. Mercury‚ which is the planet that is closest to the sun‚ is the first and smallest of the inner planets. It is speculated that the heat from the sun made it impossible for the gases present to become part of the planetary formation. The surface of Mercury is extremely hot
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Astronomy 1 Name _________________________ Exam 1 (chap 1-5) I. Multiple Choice. Select all correct answers. 1. Which of the planets known to the ancient astronomers can never be seen high overhead at night? a) Mercury b) Venus c) Mars d)Saturn e) Jupiter 2. On the first day of spring‚ the Sun sets a) north of west b) directly west c) south of west d) can’t answer‚ it depends where you are on Earth. 3. One-hundred arcminutes
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Chapter 14 Section 2 Notes: The Sun The sun produces energy through nuclear fusion. In the process of nuclear fusion‚ two atomic nuclei combine‚ forming a larger‚ more massive nucleus and releasing energy. Within the sun‚ hydrogen atoms join together to form helium. Such conditions exist in the sun’s core‚ or central region. The sun’s interior consists of the core‚ the radiation zone‚ and the convection zone. The sun’s energy is produced in its central core. The radiation zone is a region
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