Origin of the Core Francis Nimmo Dept. Earth Sciences, University of
... presumably determined by their overall availability, and the conditions which applied the last time the iron was in equilibrium with its surroundings. There are few constraints on the detailed compositions or states of other planetary cores (see Taylor (1992) and Nimmo & Alfe (2006) for summaries). ...
... presumably determined by their overall availability, and the conditions which applied the last time the iron was in equilibrium with its surroundings. There are few constraints on the detailed compositions or states of other planetary cores (see Taylor (1992) and Nimmo & Alfe (2006) for summaries). ...
Mercury`s Rotation Report
... in our solar system being slowed by tidal friction. It does not say that any of the planets have stopped due to this effect. The slowing is the issue being noted and there is no mention here or anywhere else of any planet having already stopped its rotation (or revolution). Though this first sentenc ...
... in our solar system being slowed by tidal friction. It does not say that any of the planets have stopped due to this effect. The slowing is the issue being noted and there is no mention here or anywhere else of any planet having already stopped its rotation (or revolution). Though this first sentenc ...
File - Phy 2048-0002
... Example: Rotation • A dryer rotates at 120 rpm. What distance do your clothes travel during one half hour of drying time in a 70 cm diameter dryer? What angle is swept out? • Angle: Dq wDt = 120 r/min x 0.5 x 60 min = 120x2(rad) /min x 60 min/h x 0.5 h = 2.3 x 104 r – Distance: s = Dq r and w ...
... Example: Rotation • A dryer rotates at 120 rpm. What distance do your clothes travel during one half hour of drying time in a 70 cm diameter dryer? What angle is swept out? • Angle: Dq wDt = 120 r/min x 0.5 x 60 min = 120x2(rad) /min x 60 min/h x 0.5 h = 2.3 x 104 r – Distance: s = Dq r and w ...
Sky News 2009-2011 - lethbridgeastronomysociety.ca
... orbit, at an average distance of about 385,000 km. At is closest, it is about 356,000 km away; at its furthest, about 405,000 km. A ‘moonth’ (taken from medieval English) was the time it took the Moon to go once around the Earth. Dividing 360 degrees of a circle by 30, we find that the Moon moves ab ...
... orbit, at an average distance of about 385,000 km. At is closest, it is about 356,000 km away; at its furthest, about 405,000 km. A ‘moonth’ (taken from medieval English) was the time it took the Moon to go once around the Earth. Dividing 360 degrees of a circle by 30, we find that the Moon moves ab ...
Seasons activities (PDF 364KB)
... from the Sun is more intense and is more effective at heating the ground than during winter when the Sun’s rays are spread over a greater surface area. The Sun is also in the sky longer during summer allowing more time for warming and less time for cooling the Earth. Half way between the times when ...
... from the Sun is more intense and is more effective at heating the ground than during winter when the Sun’s rays are spread over a greater surface area. The Sun is also in the sky longer during summer allowing more time for warming and less time for cooling the Earth. Half way between the times when ...
Best Ppt on Solar System
... • As there is no atmosphere, there is no weather, no rain, no wind or clouds. • Like everything else in Solar System, Moon also does not have its own light . It shines due to Sun’s light . • There is no water on its surface. • Moon’s gravity is 1/6th of Earth, so your weight would be 1/6th of your w ...
... • As there is no atmosphere, there is no weather, no rain, no wind or clouds. • Like everything else in Solar System, Moon also does not have its own light . It shines due to Sun’s light . • There is no water on its surface. • Moon’s gravity is 1/6th of Earth, so your weight would be 1/6th of your w ...
MS The Solar System
... Today we know that we have eight planets, five dwarf planets, over 165 moons, and many, many asteroids and other small objects in our solar system. We also know that the Sun is not the center of the universe. But it is the center of the solar system. ...
... Today we know that we have eight planets, five dwarf planets, over 165 moons, and many, many asteroids and other small objects in our solar system. We also know that the Sun is not the center of the universe. But it is the center of the solar system. ...
Gas Planets
... The „Lord of the Rings“. With an equator diameter of ~120 000 km he is the second largest planet in our solar system. Besides a small rocky core, the main constituents are Hydrogen and Helium, yielding a density of just 0.7 g/cm3 – less than water. The short rotation period (10½ hours) leads to an o ...
... The „Lord of the Rings“. With an equator diameter of ~120 000 km he is the second largest planet in our solar system. Besides a small rocky core, the main constituents are Hydrogen and Helium, yielding a density of just 0.7 g/cm3 – less than water. The short rotation period (10½ hours) leads to an o ...
Exploring the Edge of the Solar System
... The boundary of our Solar System is created by the interaction between particles from the Sun that are streaming outward, called the solar wind, and material between the stars, called the interstellar medium (ISM). The solar wind streams out into space and carves out a protective bubble, called the ...
... The boundary of our Solar System is created by the interaction between particles from the Sun that are streaming outward, called the solar wind, and material between the stars, called the interstellar medium (ISM). The solar wind streams out into space and carves out a protective bubble, called the ...
Chapter 20 - apel slice
... Not everybody believed in the geocentric system. An ancient Greek scientist developed another explanation for the motion of the planets. This sun-centered model is called a heliocentric system. Helios is Greek for "sun." In a heliocentric system, Earth and the other planets revolve around the sun. T ...
... Not everybody believed in the geocentric system. An ancient Greek scientist developed another explanation for the motion of the planets. This sun-centered model is called a heliocentric system. Helios is Greek for "sun." In a heliocentric system, Earth and the other planets revolve around the sun. T ...
Asteroids
... mission is to return both particle samples from a comet and interstellar dust. By returning these samples to Earth for analysis a great deal is expected to be learned about the composition of the early universe. ...
... mission is to return both particle samples from a comet and interstellar dust. By returning these samples to Earth for analysis a great deal is expected to be learned about the composition of the early universe. ...
CH 25.2 PPT - McCreary County Schools
... It takes about 29.5 days for the moon to complete a full cycle of phases. This period of time is known as a lunar month. The same side of the moon always faces Earth. This is because the moon makes one full rotation around its axis while making one full revolution around Earth. ...
... It takes about 29.5 days for the moon to complete a full cycle of phases. This period of time is known as a lunar month. The same side of the moon always faces Earth. This is because the moon makes one full rotation around its axis while making one full revolution around Earth. ...
Saturn - Wikispaces
... Bad telescope; could not see or determine rings Dutch astronomer Christiaan Huygens observed saturn in ...
... Bad telescope; could not see or determine rings Dutch astronomer Christiaan Huygens observed saturn in ...
Scale Model Solar System Teacher`s Guide
... Find a location that is at least 80 m long where the students can walk a straight line from their model Sun. (You will need about ¼ mile to include Neptune, and about 1/3 mile if you want to include Pluto. We recommend you use areas such as long hallways, football practice field, front sidewalk acro ...
... Find a location that is at least 80 m long where the students can walk a straight line from their model Sun. (You will need about ¼ mile to include Neptune, and about 1/3 mile if you want to include Pluto. We recommend you use areas such as long hallways, football practice field, front sidewalk acro ...
Section 1 Planetary Motion and Gravitation: Practice Problems
... planet was found orbiting the Sun in the region between Jupiter and Saturn…” SOLUTION: Answers will vary. A possible form of the correct answer would be, “…If the planet’s average orbital radius is 9.50×108 km, what would you expect its period to be?” 27. In 1609 Galileo looked through his telesco ...
... planet was found orbiting the Sun in the region between Jupiter and Saturn…” SOLUTION: Answers will vary. A possible form of the correct answer would be, “…If the planet’s average orbital radius is 9.50×108 km, what would you expect its period to be?” 27. In 1609 Galileo looked through his telesco ...
Science Grade 03 Unit 06 Exemplar Lesson 01: Sun, Earth, Moon
... TEKS introduce the use of models and their limitations. In this lesson, students examine various models of the solar system and the Sun, Earth, Moon system and begin to see how and why each model has its limitations. Earth is called the “third rock from the Sun” because it is one of four terrestrial ...
... TEKS introduce the use of models and their limitations. In this lesson, students examine various models of the solar system and the Sun, Earth, Moon system and begin to see how and why each model has its limitations. Earth is called the “third rock from the Sun” because it is one of four terrestrial ...
Solar System - Big Spring ISD
... During this lesson, students determine size and distance of the planets and other bodies in the solar system and construct models of the solar system. Models with three dimensions are preferable to pictures and diagrams. Students should experience trying to fashion a physical model of the solar syst ...
... During this lesson, students determine size and distance of the planets and other bodies in the solar system and construct models of the solar system. Models with three dimensions are preferable to pictures and diagrams. Students should experience trying to fashion a physical model of the solar syst ...
PDF - Oxford Academic
... like the Milky Way, are apparently maintained by hydromagnetic dynamos. This lecture will contrast the various dynamo models that have been put forward. Powerful supercomputers have now made it possible to simulate the geodynamo in considerable detail. In the case of the Sun, we have yet to explain ...
... like the Milky Way, are apparently maintained by hydromagnetic dynamos. This lecture will contrast the various dynamo models that have been put forward. Powerful supercomputers have now made it possible to simulate the geodynamo in considerable detail. In the case of the Sun, we have yet to explain ...
Dr Conor Nixon Fall 2006
... • However, radio astronomers in 1958 found that Venus was radiating radio waves as strongly as a much hotter body: 600 K ! Many astronomers thought there must be some other explanation, until… • In 1962 Mariner 2 flew by Venus and confirmed that the radiation really did come from the surface. (Marin ...
... • However, radio astronomers in 1958 found that Venus was radiating radio waves as strongly as a much hotter body: 600 K ! Many astronomers thought there must be some other explanation, until… • In 1962 Mariner 2 flew by Venus and confirmed that the radiation really did come from the surface. (Marin ...
Asteroids and Meteoroids
... By making a series of observations, it is possible to study the rotation of some asteroids. Most have simple rotations around a fixed axis, with periods typically between one hour and one day. It is believed that violent collisions are common for asteroids, and that many asteroids have in their past ...
... By making a series of observations, it is possible to study the rotation of some asteroids. Most have simple rotations around a fixed axis, with periods typically between one hour and one day. It is believed that violent collisions are common for asteroids, and that many asteroids have in their past ...
Chapter 12 Resource: The Solar System
... and sulfuric acid. Venus’s atmosphere is 100 times more dense than Earth’s atmosphere. From the surface of Venus up to 20 km, there appears to be a clear region of atmosphere. A thick layer of clouds extends from about 50 km to 80 km above the surface of Venus. These clouds are composed of drops of ...
... and sulfuric acid. Venus’s atmosphere is 100 times more dense than Earth’s atmosphere. From the surface of Venus up to 20 km, there appears to be a clear region of atmosphere. A thick layer of clouds extends from about 50 km to 80 km above the surface of Venus. These clouds are composed of drops of ...
Planetary Magnetic Field and Magnetism of Meteorites
... Ph.D. Student (Astronomy-Utah University, USA) ...
... Ph.D. Student (Astronomy-Utah University, USA) ...
GEOLOGY 306 Laboratory
... Use the space provided for you below for your scale model of the inner Solar System (see question 9 also). Use large points to represent the four terrestrial planets and place them at the appropriate distance from the Sun. Use the mean distance from the Sun in AUs listed in table 18.1 on the first p ...
... Use the space provided for you below for your scale model of the inner Solar System (see question 9 also). Use large points to represent the four terrestrial planets and place them at the appropriate distance from the Sun. Use the mean distance from the Sun in AUs listed in table 18.1 on the first p ...
The Solar System - Wayne State University
... The solar system contains countless grains of broken rock which one refers to simply as cosmic dust Comic-dust particles constantly collide with the planets and become trapped by the planets’ gravitational pull Millions of these hit the Earth's atmosphere ...
... The solar system contains countless grains of broken rock which one refers to simply as cosmic dust Comic-dust particles constantly collide with the planets and become trapped by the planets’ gravitational pull Millions of these hit the Earth's atmosphere ...
File - Youngbull Science Center
... surface drops a vertical distance of nearly 5 meters for every 8000 meters tangent to its surface as shown in Figure 14.4. A stone thrown fast enough to go a horizontal distance of 8000 meters during the time (1 second) it takes to fall 5 meters, will orbit Earth. Isn’t this speed simply 8000 meters ...
... surface drops a vertical distance of nearly 5 meters for every 8000 meters tangent to its surface as shown in Figure 14.4. A stone thrown fast enough to go a horizontal distance of 8000 meters during the time (1 second) it takes to fall 5 meters, will orbit Earth. Isn’t this speed simply 8000 meters ...
Earth's rotation
Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. This point is distinct from the Earth's North Magnetic Pole. The South Pole is the other point where the Earth's axis of rotation intersects its surface, in Antarctica.The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that a modern-day is longer by about 1.7 milliseconds than a century ago, slowly increasing the rate at which UTC is adjusted by leap seconds.