Canada has a long history of participation in space exploration dating back to 1839 with the establishment of the first magnetic observatory. Some key contributions include Marc Garneau being the first Canadian in space in 1984, Roberta Bondar being the first Canadian woman in space, and Chris Hadfield performing two spacewalks making him the first Canadian to float freely in space. Canada enjoys its role as a leader in space robotics and satellite communications due to inventions like the Canadarm robotic arm and scientific contributions in areas like life support systems and radiation dosimetry.
The document discusses the history of models of the solar system. For thousands of years, the geocentric model placed Earth at the center. Ptolemy created an influential geocentric model in the 2nd century AD. In 1543, Copernicus published a heliocentric model placing the Sun at the center, though he was afraid to publish it while alive due to religious opposition. Galileo's observations of Jupiter's moons in 1609 provided further evidence supporting the heliocentric model.
This chapter discusses small solar system bodies like dwarf planets, asteroids, meteoroids, comets, and Kuiper Belt objects. It describes their properties and classifications. Key points include that dwarf planets like Pluto and Eris have been discovered in the outer solar system, along with their moons. Asteroids exist in the main belt between Mars and Jupiter and some have orbits that cross Earth's. Comets contain ice and debris and have tails when close to the Sun. Impacts from these small bodies have caused mass extinctions on Earth in the past.
This document provides an overview of celestial objects and our solar system. It begins with definitions of astronomy and discusses important historical figures like Yuri Gagarin and Rakesh Sharma. It then provides details about the sun, planets like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Additional topics covered include the moon, phases of the moon, dwarf planet Pluto, asteroids, artificial satellites, and India's Mars orbiter mission called Mangalyaan.
This document is a Mars atlas published by the Space Applications Centre of ISRO that contains images and information about Mars from the Mars Orbiter Mission. It includes an overview of the solar system and Mars, details about the Mars Orbiter Mission spacecraft and its objectives. It then shows global views of Mars captured by the mission and categorized images of different geological features on Mars like impact craters, volcanic features, and tectonic landforms. The atlas also contains temperature maps of Mars from the mission's instruments and discusses ongoing analysis of Mars' atmosphere and surface.
Asteroids, comets, and meteors are celestial bodies that orbit the sun. Asteroids are rocky or metallic objects that orbit in the asteroid belt between Mars and Jupiter. Comets are icy bodies with long tails made of ice and dust that evaporate when near the sun. Meteors are solid objects that enter a planet's atmosphere and appear as "shooting stars."
The Voyager flights to Jupiter and Saturn were NASA missions launched in 1977 that took advantage of a rare planetary alignment to visit multiple outer planets using gravitational assists. Voyager 1 and 2 were each complex, long-lived spacecraft carrying instruments to study the planets, rings, moons, and environments. Voyager 1's encounter with Jupiter in 1979 revealed active volcanoes on Io and details of Jupiter's atmosphere, while both probes provided the first close images of Jupiter's moons."
In 1995, two Swiss astronomers became the first to detect a planet in orbit around a far off star similar to our Sun. Since then, more than 400 of these worlds, called exoplanets, have been found. With the discoveries come hopes for finding life outside our solar system.
Stephane Udry, an astrophysicist from the University of Geneva, is part of a team leading the search for exoplanets. In 2007, he was among scientists to discover a celestial body within the “habitable zone” of its solar system in orbit around a red dwarf star called Gliese 581, some 20 light-years away near the constellation Libra. Being in the habitable zone means that any water on its surface could exist in liquid form as it does here on Earth. Could life flourish there, too?
On Sunday, February 28, 2010, Professor Udry invites the swissnex San Francisco audience to join him for an enlightening journey into the questions and methodology behind his work. He’ll explain how astronomers go about searching for exoplanets, how they now view planet formation, and what new findings mean for the future and for the search for life beyond Earth.
1. The document discusses several celestial bodies in our solar system including galaxies, comets, black holes, planets, and their characteristics.
2. It explains that galaxies are large systems containing billions of stars and other matter bound together by gravity, and that Edwin Hubble discovered other galaxies beyond the Milky Way.
3. Key facts are provided about planets like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune as well as other objects like comets and black holes. Their compositions, orbits, rotations, and other physical traits are summarized.
The document discusses the history of models of the solar system. For thousands of years, the geocentric model placed Earth at the center. Ptolemy created an influential geocentric model in the 2nd century AD. In 1543, Copernicus published a heliocentric model placing the Sun at the center, though he was afraid to publish it while alive due to religious opposition. Galileo's observations of Jupiter's moons in 1609 provided further evidence supporting the heliocentric model.
This chapter discusses small solar system bodies like dwarf planets, asteroids, meteoroids, comets, and Kuiper Belt objects. It describes their properties and classifications. Key points include that dwarf planets like Pluto and Eris have been discovered in the outer solar system, along with their moons. Asteroids exist in the main belt between Mars and Jupiter and some have orbits that cross Earth's. Comets contain ice and debris and have tails when close to the Sun. Impacts from these small bodies have caused mass extinctions on Earth in the past.
This document provides an overview of celestial objects and our solar system. It begins with definitions of astronomy and discusses important historical figures like Yuri Gagarin and Rakesh Sharma. It then provides details about the sun, planets like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Additional topics covered include the moon, phases of the moon, dwarf planet Pluto, asteroids, artificial satellites, and India's Mars orbiter mission called Mangalyaan.
This document is a Mars atlas published by the Space Applications Centre of ISRO that contains images and information about Mars from the Mars Orbiter Mission. It includes an overview of the solar system and Mars, details about the Mars Orbiter Mission spacecraft and its objectives. It then shows global views of Mars captured by the mission and categorized images of different geological features on Mars like impact craters, volcanic features, and tectonic landforms. The atlas also contains temperature maps of Mars from the mission's instruments and discusses ongoing analysis of Mars' atmosphere and surface.
Asteroids, comets, and meteors are celestial bodies that orbit the sun. Asteroids are rocky or metallic objects that orbit in the asteroid belt between Mars and Jupiter. Comets are icy bodies with long tails made of ice and dust that evaporate when near the sun. Meteors are solid objects that enter a planet's atmosphere and appear as "shooting stars."
The Voyager flights to Jupiter and Saturn were NASA missions launched in 1977 that took advantage of a rare planetary alignment to visit multiple outer planets using gravitational assists. Voyager 1 and 2 were each complex, long-lived spacecraft carrying instruments to study the planets, rings, moons, and environments. Voyager 1's encounter with Jupiter in 1979 revealed active volcanoes on Io and details of Jupiter's atmosphere, while both probes provided the first close images of Jupiter's moons."
In 1995, two Swiss astronomers became the first to detect a planet in orbit around a far off star similar to our Sun. Since then, more than 400 of these worlds, called exoplanets, have been found. With the discoveries come hopes for finding life outside our solar system.
Stephane Udry, an astrophysicist from the University of Geneva, is part of a team leading the search for exoplanets. In 2007, he was among scientists to discover a celestial body within the “habitable zone” of its solar system in orbit around a red dwarf star called Gliese 581, some 20 light-years away near the constellation Libra. Being in the habitable zone means that any water on its surface could exist in liquid form as it does here on Earth. Could life flourish there, too?
On Sunday, February 28, 2010, Professor Udry invites the swissnex San Francisco audience to join him for an enlightening journey into the questions and methodology behind his work. He’ll explain how astronomers go about searching for exoplanets, how they now view planet formation, and what new findings mean for the future and for the search for life beyond Earth.
1. The document discusses several celestial bodies in our solar system including galaxies, comets, black holes, planets, and their characteristics.
2. It explains that galaxies are large systems containing billions of stars and other matter bound together by gravity, and that Edwin Hubble discovered other galaxies beyond the Milky Way.
3. Key facts are provided about planets like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune as well as other objects like comets and black holes. Their compositions, orbits, rotations, and other physical traits are summarized.
The Solar System consists of the Sun and objects bound to it by gravity, including 8 planets. The 4 inner terrestrial planets - Mercury, Venus, Earth, and Mars - are primarily rocky. The 4 outer gas giants - Jupiter, Saturn, Uranus, and Neptune - are massive and gaseous. Between Mars and Jupiter is the asteroid belt. Comets originate from the Kuiper belt beyond Neptune and have highly elliptical orbits. Each planet has unique characteristics such as atmospheric composition, rotation period, and presence of moons and rings.
ICSE Class VIII Physics The Universe - TopperLearningAlok Singh
The universe is defined as the vast surrounding space which includes everything that exists from the earth to the most distant parts of space that one can see.
The document is about the Earth, Sun and Moon. It provides information about the structure of the universe including galaxies, stars and nebulae. It then discusses the Solar System and provides details about the Sun, planets like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. It also mentions asteroids, comets, and dwarf planets. For each planet, it discusses their physical characteristics and origins of their names in Greek and Roman mythology.
NASA has a long legacy of space exploration including landing rovers on Mars, exploring planets like Jupiter and Saturn, and landing humans on the Moon. Some of NASA's most notable missions include Pioneer 10/11 which were the first to visit Jupiter and Saturn, Voyager 1/2 which made flybys of Jupiter, Saturn, Uranus, and Neptune, and WMAP which provided a more precise estimate of the age and composition of the universe. Other landmark missions include Spirit and Opportunity on Mars, Cassini-Huygens at Saturn, Chandra observing the universe in X-rays, Viking as the first successful Mars lander, and Hubble which has changed our understanding of the cosmos through its iconic images.
Um belo ebook para você aprender tudo sobre os asteroides, aprender sobre possíveis ameaças de colisão com a Terra e como estão os planos de desviar um asteroide que possa colidir com o planeta.
This document provides information about the planet Saturn. It discusses Saturn's distance from the sun, diameter, temperature, rotation period, number of moons, composition and other key facts. It specifically mentions that Saturn is known for its prominent ring system, which was discovered by Christian Huygens in 1665 and that the Cassini Division, a gap within the rings, is named after Giovani Cassini who discovered it. The rings extend from 6,630 km to 120,700 km from Saturn's equator and are composed primarily of ice particles.
Mercury is the smallest planet in the solar system and orbits closest to the Sun. It has long days but a short year, and its surface is heavily cratered. Venus is similar in size to Earth but has a dense, toxic atmosphere that causes a runaway greenhouse effect, making it the hottest planet despite being farther from the Sun than Mercury. Earth is the third planet from the Sun and the only known place where life exists. It has liquid water and an atmosphere suitable for life. Mars is a cold, desert world with seasons and polar ice caps that shows evidence it was once warmer and wetter in the past.
5CS's Fun SPACE FACTS presentation was created by Grade 5CS students using Microsoft PowerPoint and Slideshare to share interesting space facts researched on Wolfram Alpha. The presentation includes facts about astronaut training using underwater simulations of microgravity, the lack of sound in space, characteristics of different types of stars, and details about NASA and space junk. Bibliographies are provided for sources of both information and images used in the slides.
Kepler: NASA’s First Mission Capable of Finding Earth-Size Planets (fact sheet)NASA Ames Research Center
Kepler is the first space mission to search for Earth-size planets in the habitable zone of other stars in our neighborhood of the galaxy. This is the fact sheet for the mission.
Report in science( studying the universe )Raina Agcio
Artificial satellites are human-made objects that orbit Earth and other planets. They are used to study planets, help with communications, and observe the universe. Sputnik 1 was the first artificial satellite launched in 1957. Other notable satellites include Luna 2, the first to reach the moon, and Vanguard 1, the longest-living satellite still in space. Space probes like Voyager 1 have explored other planets and space beyond our solar system. The International Space Station is a modular space station in low Earth orbit operated by various space agencies. There are two main theories for the origin and evolution of the universe: the Big Bang theory and the Steady State theory.
1. Moons exist throughout the solar system and vary greatly in size, from Mars' moon Deimos which is only 7 miles in diameter to Ganymede which is larger than the planet Mercury.
2. Important tools for discovering and investigating space objects include telescopes such as the Keck Telescopes in Hawaii, space probes like Voyager 1 which is currently the furthest human-made object from Earth, and satellites such as Sputnik which was the first artificial satellite launched into space.
3. Our understanding of moons and other celestial bodies has expanded through the use of innovative technologies to observe and explore the cosmos.
The document summarizes information about the planets in our solar system from Mercury to Pluto. It discusses key facts about each planet such as their composition, moons, and exploration by space probes. It also covers background on the formation of the solar system through the Big Bang theory and how the space race between the US and USSR led to manned missions to the moon.
The document provides information about various celestial bodies in our solar system including planets, stars, galaxies, and other astronomical phenomena. It discusses the composition and characteristics of objects like Venus, Pluto, Jupiter, Saturn, Uranus, Neptune, comets, and black holes. The document is written in a simple, straightforward style to describe these objects for educational purposes.
The document provides an overview of the solar system, including descriptions of the Sun, eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune), Pluto, and the asteroid belt. It discusses the composition and features of each celestial body, such as Mercury being the smallest planet with possible volcanic activity, Earth being the only known planet that supports life, and Jupiter being the largest planet composed primarily of gas. Spacecraft that have visited and studied these objects are also mentioned.
This document provides information about the formation of the solar system and planetary systems. It discusses how the solar system formed from a cloud of gas and dust 4.6 billion years ago. It explains that the giant outer planets like Jupiter formed first, followed by inner terrestrial planets. The document also describes different classifications of objects in the solar system like planets, dwarf planets, asteroids, and comets. Additionally, it summarizes methods for detecting exoplanets and provides examples of planetary systems observed around other stars.
When it comes to planetarium shows, “questions and answers” is our absolutely favourite time. But last week one primary school visitors took Q&A to the next level. They came to their Wonderdome Astronomy lesson with questions already prepared and written down! More questions came up during the show, so some of the prepared questions we didn’t have time to go through. There was only one thing we could do!
The document provides information about Pluto and other minor bodies in our solar system. It discusses Pluto's demotion to dwarf planet status in 2006, its physical characteristics such as size and orbit, and NASA's New Horizons mission to study Pluto up close. It also summarizes the discovery of asteroids in the region between Mars and Jupiter, including Ceres, and the Kuiper Belt of icy objects beyond Neptune's orbit that includes dwarf planets like Pluto.
1) The Solar System consists of the Sun and objects that orbit it, including 9 planets.
2) The planets follow elliptical orbits around the Sun due to the balance between gravitational pull and inertia.
3) There are several theories for how the Solar System formed, with the most widely accepted being the Nebular Hypothesis where a large cloud collapsed and spun to form a disk that condensed into planets.
The document provides information about astronomy and the solar system. It discusses the 8 planets, their characteristics, and interesting facts about each planet. It also describes other space objects like asteroids, comets, and meteors. Tools used to study space such as telescopes, satellites, space probes, and spectroscopes are explained. Finally, it discusses concepts like light years, galaxies, and how mass and distance affect gravitational pull.
Here are the key differences between asteroids, comets, and meteoroids:
- Asteroids: Asteroids orbit the Sun and are made of rock and metals. They are usually found in the asteroid belt between Mars and Jupiter.
- Comets: Comets are small icy bodies that orbit the Sun and have long tails made of dust and gas that form when they are heated by the Sun as they orbit. They come from farther out in the Solar System.
- Meteoroids: Meteoroids are much smaller than asteroids and comets, ranging from small grains to large boulders. They orbit the Sun like asteroids. When meteoroids enter Earth's atmosphere, they glow from friction and are called
The Solar System consists of the Sun and objects bound to it by gravity, including 8 planets. The 4 inner terrestrial planets - Mercury, Venus, Earth, and Mars - are primarily rocky. The 4 outer gas giants - Jupiter, Saturn, Uranus, and Neptune - are massive and gaseous. Between Mars and Jupiter is the asteroid belt. Comets originate from the Kuiper belt beyond Neptune and have highly elliptical orbits. Each planet has unique characteristics such as atmospheric composition, rotation period, and presence of moons and rings.
ICSE Class VIII Physics The Universe - TopperLearningAlok Singh
The universe is defined as the vast surrounding space which includes everything that exists from the earth to the most distant parts of space that one can see.
The document is about the Earth, Sun and Moon. It provides information about the structure of the universe including galaxies, stars and nebulae. It then discusses the Solar System and provides details about the Sun, planets like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. It also mentions asteroids, comets, and dwarf planets. For each planet, it discusses their physical characteristics and origins of their names in Greek and Roman mythology.
NASA has a long legacy of space exploration including landing rovers on Mars, exploring planets like Jupiter and Saturn, and landing humans on the Moon. Some of NASA's most notable missions include Pioneer 10/11 which were the first to visit Jupiter and Saturn, Voyager 1/2 which made flybys of Jupiter, Saturn, Uranus, and Neptune, and WMAP which provided a more precise estimate of the age and composition of the universe. Other landmark missions include Spirit and Opportunity on Mars, Cassini-Huygens at Saturn, Chandra observing the universe in X-rays, Viking as the first successful Mars lander, and Hubble which has changed our understanding of the cosmos through its iconic images.
Um belo ebook para você aprender tudo sobre os asteroides, aprender sobre possíveis ameaças de colisão com a Terra e como estão os planos de desviar um asteroide que possa colidir com o planeta.
This document provides information about the planet Saturn. It discusses Saturn's distance from the sun, diameter, temperature, rotation period, number of moons, composition and other key facts. It specifically mentions that Saturn is known for its prominent ring system, which was discovered by Christian Huygens in 1665 and that the Cassini Division, a gap within the rings, is named after Giovani Cassini who discovered it. The rings extend from 6,630 km to 120,700 km from Saturn's equator and are composed primarily of ice particles.
Mercury is the smallest planet in the solar system and orbits closest to the Sun. It has long days but a short year, and its surface is heavily cratered. Venus is similar in size to Earth but has a dense, toxic atmosphere that causes a runaway greenhouse effect, making it the hottest planet despite being farther from the Sun than Mercury. Earth is the third planet from the Sun and the only known place where life exists. It has liquid water and an atmosphere suitable for life. Mars is a cold, desert world with seasons and polar ice caps that shows evidence it was once warmer and wetter in the past.
5CS's Fun SPACE FACTS presentation was created by Grade 5CS students using Microsoft PowerPoint and Slideshare to share interesting space facts researched on Wolfram Alpha. The presentation includes facts about astronaut training using underwater simulations of microgravity, the lack of sound in space, characteristics of different types of stars, and details about NASA and space junk. Bibliographies are provided for sources of both information and images used in the slides.
Kepler: NASA’s First Mission Capable of Finding Earth-Size Planets (fact sheet)NASA Ames Research Center
Kepler is the first space mission to search for Earth-size planets in the habitable zone of other stars in our neighborhood of the galaxy. This is the fact sheet for the mission.
Report in science( studying the universe )Raina Agcio
Artificial satellites are human-made objects that orbit Earth and other planets. They are used to study planets, help with communications, and observe the universe. Sputnik 1 was the first artificial satellite launched in 1957. Other notable satellites include Luna 2, the first to reach the moon, and Vanguard 1, the longest-living satellite still in space. Space probes like Voyager 1 have explored other planets and space beyond our solar system. The International Space Station is a modular space station in low Earth orbit operated by various space agencies. There are two main theories for the origin and evolution of the universe: the Big Bang theory and the Steady State theory.
1. Moons exist throughout the solar system and vary greatly in size, from Mars' moon Deimos which is only 7 miles in diameter to Ganymede which is larger than the planet Mercury.
2. Important tools for discovering and investigating space objects include telescopes such as the Keck Telescopes in Hawaii, space probes like Voyager 1 which is currently the furthest human-made object from Earth, and satellites such as Sputnik which was the first artificial satellite launched into space.
3. Our understanding of moons and other celestial bodies has expanded through the use of innovative technologies to observe and explore the cosmos.
The document summarizes information about the planets in our solar system from Mercury to Pluto. It discusses key facts about each planet such as their composition, moons, and exploration by space probes. It also covers background on the formation of the solar system through the Big Bang theory and how the space race between the US and USSR led to manned missions to the moon.
The document provides information about various celestial bodies in our solar system including planets, stars, galaxies, and other astronomical phenomena. It discusses the composition and characteristics of objects like Venus, Pluto, Jupiter, Saturn, Uranus, Neptune, comets, and black holes. The document is written in a simple, straightforward style to describe these objects for educational purposes.
The document provides an overview of the solar system, including descriptions of the Sun, eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune), Pluto, and the asteroid belt. It discusses the composition and features of each celestial body, such as Mercury being the smallest planet with possible volcanic activity, Earth being the only known planet that supports life, and Jupiter being the largest planet composed primarily of gas. Spacecraft that have visited and studied these objects are also mentioned.
This document provides information about the formation of the solar system and planetary systems. It discusses how the solar system formed from a cloud of gas and dust 4.6 billion years ago. It explains that the giant outer planets like Jupiter formed first, followed by inner terrestrial planets. The document also describes different classifications of objects in the solar system like planets, dwarf planets, asteroids, and comets. Additionally, it summarizes methods for detecting exoplanets and provides examples of planetary systems observed around other stars.
When it comes to planetarium shows, “questions and answers” is our absolutely favourite time. But last week one primary school visitors took Q&A to the next level. They came to their Wonderdome Astronomy lesson with questions already prepared and written down! More questions came up during the show, so some of the prepared questions we didn’t have time to go through. There was only one thing we could do!
The document provides information about Pluto and other minor bodies in our solar system. It discusses Pluto's demotion to dwarf planet status in 2006, its physical characteristics such as size and orbit, and NASA's New Horizons mission to study Pluto up close. It also summarizes the discovery of asteroids in the region between Mars and Jupiter, including Ceres, and the Kuiper Belt of icy objects beyond Neptune's orbit that includes dwarf planets like Pluto.
1) The Solar System consists of the Sun and objects that orbit it, including 9 planets.
2) The planets follow elliptical orbits around the Sun due to the balance between gravitational pull and inertia.
3) There are several theories for how the Solar System formed, with the most widely accepted being the Nebular Hypothesis where a large cloud collapsed and spun to form a disk that condensed into planets.
The document provides information about astronomy and the solar system. It discusses the 8 planets, their characteristics, and interesting facts about each planet. It also describes other space objects like asteroids, comets, and meteors. Tools used to study space such as telescopes, satellites, space probes, and spectroscopes are explained. Finally, it discusses concepts like light years, galaxies, and how mass and distance affect gravitational pull.
Here are the key differences between asteroids, comets, and meteoroids:
- Asteroids: Asteroids orbit the Sun and are made of rock and metals. They are usually found in the asteroid belt between Mars and Jupiter.
- Comets: Comets are small icy bodies that orbit the Sun and have long tails made of dust and gas that form when they are heated by the Sun as they orbit. They come from farther out in the Solar System.
- Meteoroids: Meteoroids are much smaller than asteroids and comets, ranging from small grains to large boulders. They orbit the Sun like asteroids. When meteoroids enter Earth's atmosphere, they glow from friction and are called
Ways my media product uses develop and challanges media conventionsentwistlesophie8064
My media product fits conventions of real magazines in several ways. The front cover includes a skyline, date, slogan, and barcode placement consistent with magazines. The contents page follows the magazine's house style and features an image related to an article. The double page spread lays out text in columns around a model, with a large bold title above the text, mirroring other magazine interviews. The language used relates to the target audience.
Handelsbeleid in steden en gemeenten (UNIZO Burgemeestersonbijt 16/01/14)Bert Serneels
Presentatie voor Karel Van Eetvelt en Peter Aerts (UNIZO) rond omgaan met leegstand van winkelpanden in steden en gemeenten via een doordacht handelsbeleid.
Dokumen tersebut membahas tentang teknologi komunikasi dan informasi khususnya penggunaan Microsoft Power Point 2007. Terdapat penjelasan mengenai standar kompetensi dan kompetensi dasar, peta konsep, indikator, materi pelajaran membuat tabel, grafik dan diagram organisasi menggunakan Power Point dan kunci jawaban untuk soal uji kompetensi.
El documento habla sobre los desafíos que enfrentan las pequeñas empresas en la actualidad. Menciona que la pandemia ha afectado negativamente a muchas pequeñas empresas y que necesitan apoyo gubernamental para sobrevivir y recuperarse. También señala que las pequeñas empresas son esenciales para la economía y el empleo.
Dokumen ini membahas tentang double roll crusher, yang merupakan jenis crusher yang memiliki dua buah roller yang berputar dengan arah berlawanan untuk memecahkan material. Double roll crusher cocok digunakan untuk menghancurkan material menengah kekerasannya seperti batubara, batu kapur, dan kaolin. Dokumen ini juga menjelaskan prinsip kerja, komponen, dan perawatan dari double roll crusher.
Teks tersebut merangkum konsep dasar teknik tenaga listrik, termasuk jenis-jenis arus listrik, sistem tenaga listrik, komponen pengubah energi seperti generator dan motor, konsep induksi magnetik dan elektromagnetik, baterai, serta prinsip kerja generator dan motor arus searah dan bolak-balik.
The document provides guidance on creating successful LinkedIn groups, including making a plan by defining objectives and audience, setting up the group through branding, access controls, and templates, enhancing engagement through content and features, opening the group to members, and moderating ongoing discussions. Effective groups have clear goals, target relevant professionals, and require ongoing community management to build participation.
The document provides guidance on creating successful LinkedIn groups, including making a plan by defining objectives and audience, setting up the group through branding, access controls, and templates, enhancing engagement through content and features, opening the group to members, and moderating ongoing discussions. Effective groups have clear goals, target relevant professionals, and require ongoing community management to build participation.
Training and development is an educational process that allows people to learn new skills and information. There are various types of training like job training, safety training, and promotional training. Training methods include classroom programs, coaching, mentoring, simulations and on-the-job training. Companies provide training to maintain quality, reduce costs, and improve communication between employees.
1. The document provides information about various celestial bodies including galaxies, the Milky Way galaxy, Andromeda galaxy, constellations, the Solar System, planets like Mercury, Venus, Earth, Mars, Jupiter, and features like the Kuiper belt.
2. It discusses key facts about these objects such as their composition, size, and characteristics.
3. Nicolaus Copernicus is mentioned for developing the heliocentric model that placed the Sun at the center of the Solar System.
1. The document provides information about the planet Jupiter and its moons. Jupiter is the largest planet in the solar system and has many moons, including the four largest Galilean moons - Io, Europa, Ganymede, and Callisto.
2. The Cassini spacecraft obtained images of Saturn and its rings and moons. Saturn has a vast ring system made of small particles of ice and rock. It has several large moons such as Titan, which has a thick atmosphere.
3. The document discusses the gas giant planets Jupiter and Saturn, their compositions, atmospheric features, rotations, magnetic fields, rings and moons as observed by spacecraft such as Galileo, Cassini, and Voyager.
IB Astrophysics - intro to the universe - Flippingphysics by nothingnerdyNothingnerdy
This document provides an introduction to the universe through 3 sentences: It begins with an overview of the contents of the universe from asteroids and comets to galaxies and galaxy clusters. Next, it describes our solar system and includes data on planets, their orbits, and surface temperatures. Finally, it discusses astronomical units of distance such as light years and compares the relative distances of objects in our solar system and galaxies.
The document provides an overview of the components of the solar system, including the sun, eight planets, asteroids, comets, and satellites. It discusses the key features of terrestrial and Jovian planets, and provides brief introductions to each of the planets as well as other celestial bodies like asteroids, meteors, comets, and satellites. The document aims to teach students about the structure and composition of objects in the solar system.
The document provides information about the solar system. It begins with an acrostic to help memorize the nine planets. It then describes each planet, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. It also discusses other objects in the solar system like asteroids, comets, and moons. The purpose is to teach students about the members and characteristics of the solar system.
The document discusses astronomy and the study of space. It describes some key discoveries and models in astronomy's history, including that planetary orbits are elliptical, not circular. It also summarizes ancient and modern views of the structure of the universe, from geocentric to heliocentric models. Additionally, it outlines the life cycles of stars and describes objects in our solar system like planets, asteroids, comets, and eclipses.
The document provides facts about the planets in our solar system. It includes details about each planet's diameter, temperature, number of moons, distance from the sun, length of year, and more. Sections are devoted to each planet - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto - and provide 3 or fewer sentences summarizing key details about each celestial body.
1) The Big Bang Theory is the dominant scientific theory that the universe was created between 10-20 billion years ago from a cosmic explosion that hurled matter in all directions.
2) A black hole is a region of space with immense gravity that prevents anything, even light, from escaping.
3) The Milky Way galaxy is home to over 400 billion stars and contains the solar system, including Earth and the sun.
1) The Big Bang Theory is the dominant scientific theory that the universe was created between 10-20 billion years ago from a cosmic explosion that hurled matter in all directions.
2) A black hole is a region of space with immense gravity that prevents anything, even light, from escaping.
3) The Milky Way galaxy is home to over 400 billion stars and contains the solar system, including Earth and the sun.
The Solar System an volume of Space defined by the influence of the Sun gravity. It is extra-ordinary complex considered the type and the number of objects that circulate around the Sun. Our knowledge about the Solar System exploded as we started sending spacecrafts at the second half of the twentieth century. This is just a slideshow describing the major objects within the Solar System. 25 Sept 2021
The document provides information about the solar system and its components. It begins with definitions and descriptions of the solar system and what constitutes a planet. It then provides detailed descriptions of Mercury and Venus, the first two planets from the Sun. For each planet, it describes their physical characteristics such as size, composition, atmosphere, rotation, and orbit around the Sun. It also discusses past and current missions that have explored these planets, such as MESSENGER and Magellan, and some of their key findings.
A comprehensive study of Geography for PCS examination
This module is very helpful for the Students who are preparing for the Competitive Examination Like UPSC, BPSC & other State Public Service Commission.
The document provides an overview of our solar system and the universe. It discusses that our solar system formed from a great cloud of gas and dust around 5 billion years ago. It is located within the Milky Way galaxy, which contains over 200 billion stars. Our solar system contains 8 planets orbiting the Sun, along with smaller objects like asteroids, comets, and meteorites. Beyond our solar system, there are other galaxies like the Andromeda galaxy.
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The document discusses the major components of the universe including galaxies, stars, planets, comets and asteroids. It describes the formation of the universe through the Big Bang theory and provides details on key astronomical objects like nebulae, supernovae and constellations. Furthermore, it outlines our solar system and important facts about bodies like the sun, Earth and dwarf planets. The document also covers China's plans to develop an artificial moon and sun through nuclear fusion experiments.
This document provides an overview of the Voyage exhibition on the National Mall in Washington DC, which uses a scale model to help visitors understand Earth's place in the solar system. It also discusses lessons developed by the National Center for Earth and Space Science Education to bring the Voyage experience to classrooms. Lesson 1 examines the components of the solar system, including the Sun, eight planets, their moons, asteroids, comets and more. It classifies the planets into terrestrial planets like Earth and Mars, and gas giants like Jupiter and Saturn. The lesson also describes characteristics of each planet and other solar system bodies.
The Hubble Space Telescope is a large space-based observatory named after astronomer Edwin Hubble that has provided unprecedented views of the universe. Hubble orbits Earth every 96 minutes and has taken many famous images including pillars of creation in the Eagle Nebula and the Crab Nebula. Some of Hubble's images show planetary nebulae, star clusters, galaxies and more distant objects in the universe.
This document provides information about the eight planets and one dwarf planet in our solar system. It describes each celestial body's size, composition, orbit details, day length, and namesake. Key facts include Mercury being the closest planet to the Sun, Venus having the hottest surface temperatures, Earth being the only world known to harbor life, Mars once possibly having water and warmer climate, and Neptune being the farthest planet from the Sun. Pluto is now classified as a dwarf planet.
A solar system refers to a star and all the objects that travel in orbit around it. Our solar system consists of the sun - our star - eight planets and their natural satellites (such as our moon); dwarf planets; asteroids and comets. Our solar system is located in an outward spiral of the Milky Way galaxy.
Thermal energy naturally transfers from hotter to colder objects through three main methods:
(1) Conduction, where energy transfers through direct contact of particles in substances or between substances;
(2) Convection, where the flow of fluids like gases or liquids transfers energy; and
(3) Radiation, where electromagnetic waves transfer energy without requiring contact between objects. Technologies like furnaces and refrigerators control the rate of heating and cooling through these thermal energy transfer methods.
The document discusses the basics of flight, including:
1) Air exerts pressure equally in all directions and can generate lift according to Bernoulli's principle when the speed of air increases over a curved surface.
2) The four main forces acting on an aircraft are gravity, lift, thrust, and drag. Lift counters gravity while thrust provides forward motion.
3) Key parts of an airplane include the fuselage, rudder, ailerons, and elevators, which affect airplane control.
This document appears to be about space and astronomy topics. It contains questions about the moon's phases, eclipses, planets in our solar system, and other astronomical phenomena. The questions range from facts about the moon, planets, and space exploration events.
The Cloud Penguin lives in both Antarctica and Chilean rainforests. It is the only species of penguin capable of flight, using its wings to fly at speeds up to 45 km/h. Cloud Penguins migrate between the two habitats annually, breeding in the rainforests during summer and foraging in Antarctic waters during winter. They lay two eggs and both parents cooperate in incubation and chick rearing. Threats to the species include climate change, fishery interactions, and oil pollution.
The cloud penguin is a mid-sized penguin capable of both flight and swimming at high speeds. It migrates between Chilean jungles in the summer, where it nests and raises its young, and the Antarctic waters in winter, where it feeds on fish. The cloud penguin is highly adapted for its environment with wings that allow flight, webbed feet, and other features that help it catch prey and endure varying climates throughout the year.
The document discusses the environmental impact of cars and provides tips for reducing pollution. It notes that hybrid cars run partially on electricity and have less frequent brake pad changes. Driving gas-guzzling cars significantly contributes to air pollution and ozone layer depletion. Walking, biking, public transit, and carpooling can help reduce emissions. When choosing a car, fuel efficiency should be prioritized over appearance to help the environment. Solar panels at factories are also highlighted as beneficial.
Car pollution damages the ozone layer and causes global warming by releasing gases such as carbon dioxide into the air. When we breathe in car pollution, it can be as harmful as smoking a pack of cigarettes. To reduce car pollution, the document recommends carpooling, biking, walking for short distances, combining errands into one trip, avoiding drive-thrus, using cruise control, and driving hybrid, electric or solar powered vehicles. Following these tips can help save the earth and humanity from the harmful effects of car pollution.
The document discusses how cars emit large amounts of carbon dioxide and other pollutants each year, with Americans using nearly 400 million gallons of gasoline daily. Most ozone pollution comes from vehicles. Some ways to reduce pollution include walking, biking, using public transit or carpooling instead of driving, purchasing a hybrid or electric vehicle, and avoiding idling engines unnecessarily. The authors thank the audience for their attention.
The document describes the structures of several types of cells:
- Amoebas have pseudopods for movement, cytoplasm, a cell membrane, contractile and food vacuoles, and a nucleus.
- Euglenas have a reservoir, nucleus, contractile vacuole, pellicle, chloroplast, nucleolus, and flagellum.
- Parameciums have cilia, contractile and food vacuoles, micronucleus, oral groove, gullet, cytoplasm, and large nucleus.
- Plant cells have a nucleus, chloroplasts, mitochondria, cytoplasm, vacuoles, and a cell wall.
The document describes the structures of various cells including amoebas, euglenas, paramecia, and plant cells. It lists the key organelles and parts of each cell type, such as the pseudopod and nucleus of an amoeba, the flagellum and chloroplast of a euglena, the cilia and oral groove of a paramecium, and the nucleus, chloroplasts, mitochondria, vacuoles, and cell wall of a plant cell.
This short document discusses whether vehicles are good or bad. It presents the perspectives of two individuals, Natalie who believes vehicles should be banned, while Bella thinks they are okay. The document aims to explore both sides of this issue but does not provide any conclusions.
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How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
How to Build a Module in Odoo 17 Using the Scaffold Method
Space Test Review
1. SPACE EXPLORATION
Canada's history of participating in space
exploration can be traced back to 1839 with the
establishment of the first magnetic observatory,
to study the northern lights. Today, Canada
enjoys its role as a leader in space robotics and
satellite communications.
2. Chris Hadfield
operated the space
Marc Garneau was a
arm. Hadfield
robotics expert he
performed two
became first Canadian in
spacewalks, which
space in 1984 made him the first
Canadian to ever
leave a spacecraft
and float freely in
space.
Julie Payette served as a
mission specialist, was Roberta Bondar was the first
responsible for the Station woman in space. She
systems, supervised the experimented on the blood
space walk and operated flow in the brain during no
the Canadarm robotic arm. gravity.
Ms. Payette was the first
Canadian to participate in
an ISS assembly mission
and to board the Space
Station.
Four of twelve
Canadian Astronauts
3. •Some Canadian Scientist’s
contributions to space exploration
•Canadarm - The Shuttle Remote Manipulator System (SRMS) or Canadarm on
the Space Shuttle, is a mechanical arm that maneuvers a payload from the space
shuttle orbiter to its deployment position and then releases it. There is also one on
the ISS to maneuver things outside the station.
•Anti-Gravity Suit - In 1940, the anti gravity suit was first invented
under the name Franks Flying Suit by Wilbur R. Franks at the
University of Toronto. The suit was made with rubber and water-
filled pads. It counteracted the effects of high G forces on aircraft
pilots, which otherwise would cause them to black out; all G-Suits
worn by air force pilots as well as astronauts and cosmonauts
around the world are based on his original designs.
•Radarsat Constellation (satellites)-The RADARSAT Constellation
Mission (RCM) consists of a three spacecraft fleet of Earth observation
satellites.
They are used for:
- national security (maritime surveillance (e.g., ship detection))
- resource management
-disaster management and ecosystem monitoring for example,
monitoring/tracking ice,- detecting oil spills, monitoring floods,
landslides, eruptions, - aiding forest firefighting
- transportation
4. •Life Support systems (canadians have
helped to design and make improvements
in space suit technology
Apollo lunar module- Canadian engineer
Eugene Maynard, working for NASA in
the USA, is considered to be the person
at NASA most responsible for the design
of the lunar module. The lunar module
was the spacecraft that landed
astronauts on the moon for all Apollo
missions.
•ESA's Micro-Ecological Life Support
System Alternative (MELISSA) (providing
food and water - mini habitats) for long
term space exploration
5. •Biological Air Filter (to maintain air quality in space station)
•Radiation Dosimetry (radiation therapy for medical treatments
•Have done research on stopping Bone Loss (osteoporosis
particularly in women)
•A variety of Medical Support
•And more
6. Space exploration has brought many benefits to society.
•High-quality radio and television signals are now relayed around the
globe by satellite.
•Biological experiments in space, such as the growing of insulin crystals,
are contributing to our ability to fight disease.
•The technology used for space shuttle fuel pumps is now being used to
make better artificial hearts.
•Geographical data obtained by satellites have improved the quality of
maps and made navigation safer.
•Also many inventions are related to space are developed for other
purposes such as cell phones, fire fighter suits, computers and computer
games (joy sticks) smoke detectors, the metal wire for braces,
rechargeable batteries sports safety helmets, cars plexiglass and many
more
But space exploration also
•is very expensive, money could be spent elsewhere
•involves risks to the lives of astronauts and others
•produces pollution, and creates space junk that may eventually fall back
to Earth
•Some argue It is partially done for militaristic reasons
•Could result in some deadly bacteria being brought to earth
What do you think??? Be prepared to discuss your
opinion giving specific reasons
7. Constellations The constellations are totally imaginary things that poets, farmers and
astronomers have made up over the past 6,000 years (and probably even more!). The real
purpose for the constellations is to help us tell which stars are which. Stars are used for
navigation and people need a way to help recognize which stars to follow. It also provided a
story as to why the stars behave as they do.
You should be able to discuss and draw one constellation and name one of the primary stars
The little dipper
Know
One
8. Some objects emit light (stars) and other
bodies in space reflect light (moons and
planets). Objects in the night sky
That emit light twinkle and those that reflect
light do not.
The sun burns gasses and so twinkles
Venus reflects the light from the
sun and so does not twinkle
9. The four planets closest to the sun—Mercury, Venus, Earth, and
Mars—are called the terrestrial planets because they have solid
rocky surfaces.
Mercury (terrestrial) is the closest
planet to the sun and is the smallest
planet in the Solar System, Surface Mars (terrestrial) is the fourth
temperatures range from about 90 to planet from the Sun in the Solar
700 K (-183 degrees C to 427 degrees System. It is also referred to as
C, the ""Red Planet"" because of its
Orbits (revolves around) the Sun once reddish appearance, due to iron
every 88 days. Rotation: 59days oxide (rust) on its surface.
Moons 0 Mars is currently host to three
functional orbiting spacecraft:
Mars Odyssey, Mars Express, and
the Mars Reconnaissance
Orbiter. The surface is also home
to the two Mars Exploration
Rovers (Spirit and Opportunity)
Rotation: 25 hours Orbit: 1.88
Venus (terrestrial) is the second- year(s) Moons 2
closest planet to the Sun. It is the
brightest natural object in the night
sky, except for the Moon Often
called the morning or evening star
Rotation: 5376 hours Orbit: 225
days Moons 0
10. The four large planets beyond the orbit of Mars—Jupiter, Saturn, Uranus, and
Neptune—are called gas giants.
Uranus a gas giant
planets, has a ring
system, a and
Jupiter is the fifth planet from the Sun numerous moons. The
and the largest planet within the Solar Uranian system is
System unique configuration
It has a Great Red Spot, a giant storm among the planets
that is known to have existed since at because its axis of
least the 17th century. Surrounding the rotation is tilted
planet is a faint planetary ring system sideways,
and a powerful magnetosphere. Rotation: 17 hours
Rotation: 10 hours Orbit: 11.86 year(s) Orbit: 84.32 year(s)
moons at least 63 Number of Moons: 27
Saturn is the sixth planet from the
Sun and the second largest planet in
the Solar System. Saturn has a
prominent system of rings, consisting Neptune is a gas giant
mostly of ice particles with a smaller and has faint rings. It
amount of rocky debris and dust. also has a dark spot
Rotation: 11 hours Orbit: 29.66 similar to the great red
year(s) moons- 61 known ( not spot on Jupiter
counting hundreds of ""moonlets"" Rotation: 16 hours
Orbit: 165 year(s)
within the rings.)
Number of Moons: 13
11. Earth (terrestrial) third planet from the sun
in the Goldilocks zone (water occurs in
solid (frozen) gas and liquid states)
Rotation: 24 hours Orbit: 365.25 days (1
year) Number of Moons: 1
The earth rotates once every 24 hours and
this is what provides us with night and day.
The Earth's axis of rotation is tilted 23
degrees and is responsible for producing
seasonal variations on the planet's surface
with a period of one tropical year (365.25
solar days). Earth's only known natural
satellite, the Moon, which began orbiting it
about 4.53 billion years ago. The moon
provides ocean tides, stabilizes the axial tilt
and is gradually slowing the planet's
rotation.
12. Why we have seasons.
If you try drawing the locations of sunrise and sunset
near your house over the course of a year, you will see
that the Sun rises and sets and takes different paths
across the sky in different seasons.
Some people have the misconception that different seasons
happen because sometimes the Earth is farther from the Sun and
sometimes it is closer. It makes sense -- when you are close to the
Sun, it should be warm and summery, and when you are far away,
it should be icy winter -- but this is not true.
The earth's axis is tilted about 23.5 degrees, so the Earth is never
straight up and down compared to the Sun. When it is summer in North
America that is because the North Pole and the rest of the Northern
Hemisphere are pointing toward the Sun. The Sun appears to stay in
the sky longer each day (really, we are just pointed toward the Sun for
longer each day). Because we spend more time in the sunshine and
less in the shadow of night, our part of the Earth gets warmer, and we
experience summer.
During the summer, the Sun is high in the sky. Therefore, rays of light
from the Sun hit us more directly during summer, making the sunlight
more intense and warmer. In winter, the Sun is low in the sky. The rays
of light are spread more thinly, and they do not warm us as much.
13. Solstices
The solstices are days that have the most and
least amount of sunlight. The winter solstice
occurs on December 21 or 22 and marks the
beginning of winter (this is the shortest day of
the year). The summer solstice occurs on
June 21 and marks the beginning of summer
(this is the longest day of the year).
Equinoxes
Equinoxes are days in which day and night
are of equal duration. The vernal equinox
occurs in late March (this is the beginning of
spring in the Northern Hemisphere and the
beginning of fall in the Southern Hemisphere);
the autumnal equinox occurs in late
September (this is the beginning of fall in the
Northern Hemisphere and the beginning of
spring in the Southern Hemisphere).
14. The Moon
The moon (and sun and earth’s rotation) causes the tides (the rise
and fall of sea levels)
The diagram shows how the moon causes tides on Earth:
In this diagram, you can see that the moon's gravitational force pulls on
water in the oceans so that there are "bulges" in the ocean on both sides of
the planet. The moon pulls water toward it, and this causes the bulge toward
the moon. The bulge on the side of the Earth opposite the moon is caused by
the moon "pulling the Earth away" from the water on that side.
If you are on the coast and the moon is directly overhead, you should
experience a high tide. If the moon is directly overhead on the opposite side
of the planet, you should also experience a high tide.
15. There are 8 main phase of the moon (one orbit around the
Earth), which takes 28 days. The moon does one rotation
during that time and that is why we only ever see the one
side of the moon.
16. A solar eclipse occurs when the moon passes
between the Earth and the sun. During a total
eclipse the moon passes completely in front of the
sun. Partial eclipses occur when the moon only
partly blocks out the sun.
17. A lunar eclipse occurs when the Moon passes behind the Earth so
that the Earth blocks the Sun's rays from striking the Moon. This can
occur only when the Sun, Earth, and Moon are aligned exactly, or
very closely so, with the Earth in the middle. Hence, a lunar eclipse
can only occur the night of a full moon.