interaction is creating holes in the ozone‚ how we have created the enhanced greenhouse effect and contributing to global warming. The ozone is a thin layer of O3 that surrounds the earth and helps to regulate climate and temperature. Without the ozone there would be a lot more insolation and the earth would probably be too hot to populate. Chlorofluorocarbons or CFC’s were used in refrigerators‚ air conditioners‚ aerosol cans and have also been used in fire fighting. In
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SOLAR SYSTEM About 5 Billion years ago‚ y There was no Sun‚ no Earth& no Moon y Only cosmic dust and gasses drifted in the darkness of space SOLAR SYSTEM THEORY The solar system was formed by a slowly spinning cloud of gas and cosmic dust‚ gradually the cloud began to spin faster and faster this formed a large spinning whirl at the centre and smaller whirls surrounding it at various distances. SOLAR SYSTEM THEORY The huge and heavy centre became hot enough to start thermo nuclear
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What is a satellite? A satellite is a small thing orbiting or circling a larger thing. The complete path it follows is called an orbit. The moon is a example of a natural satellite of the earth. Manmade‚ or artificial satellites are placed into orbit by rockets or space shuttles. After World War II‚ the former Soviet Union successfully launched Sputnik I‚ the first artificial satellite in 1951‚ into space. In 1958‚ the United States launched its first artificial satellite Telstar I into orbit.
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Become familiar with the scale of the planets vs. their distances. • Get an overview of the solar system. Introduction It is easy to flip to the index of an astronomy textbook to discover that‚ say‚ the Sun lies 150 million kilometers away from Earth. It is far more difficult (if not impossible)‚ however‚ to picture this distance in the human mind. In this exercise‚ we will learn to access the often unpalatable distances encountered in astronomy by simply scaling the huge distances to more recognizable
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Scientists believe that earth was hit by an asteroid that was over six miles wide‚ or that earth was hit by a comet travelling 18 miles per second. They contemplate that when the asteroid hit earth’s surface‚ a great amount of debris and sulfur rose into the air. They believe that this blocked the suns light from hitting the earth. In result‚ all the dinosaurs and 70 percent of all animals and plants died (“What Killed the Dinosaurs"). Scientists have backed up their theory that earth was hit by an asteroid
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ice caps are melting‚ the Earth is getting warmer‚ which will leave us without winter. The earth is getting hotter and hotter and sooner or later we wouldn’t have winter. In the word book online info finder greenhouse effects‚ it states that greenhouse gases will leave us without winter. This is important because without winter the earth will just keep on getting warmer until it’s too hot to live in. Also from world book online greenhouse gases‚Sooner or later the earth will become
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Kepler 22-b | | Jessica Loyd | 11/1/2012 | For my professional organization I chose NASA because they are the U. S. government agency that is spearheading the Kepler Project that actually found the planet Kepler 22b that so closely resembles Earth. NASA was founded in 1958 and their headquarters are located in Washington D.C. NASA’s mission statement is “To reach for new heights and reveal the unknown so that what we do and learn will benefit all humankind.” (Wilson‚ 2011) The services provided
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Ecology 2:30-5:30 The Gaia Hypothesis A Goddess of the earth: "The Gaia hypothesis says that the temperature‚ oxidation state‚ acidity‚ and certain aspects of the rocks and waters are kept constant‚ and that this homeostasis is maintained by active feedback processes operated automatically and unconsciously by the biota." - James Lovelock‚ The Ages of Gaia It often seems obvious that life on earth lives at the mercy of powerful non-biological forces like
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of the universe and announce his discovery. Aristarchus‚ by observing the moon during a lunar eclipse‚ and estimating the angles between the Earth‚ Moon and Sun‚ as well as the size of the earth‚ was also one of the first astronomers to calculate the relative sizes of the Sun‚ Moon and Earth. Other astronomers before Aristarchus assumed that the Earth is a sphere and that it moves‚ but he was the first to explicitly formulate the heliocentric theory‚ the model which has the Sun in the centre
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been blamed for causing global warming. Global warming‚ however‚ can be caused by natural effects. One reason is that the earth is constantly going through periods of warming and cooling. Second the two most abundant greenhouse gases water vapor‚ and carbon dioxide both occur naturally. Third the earth is not the only planet that has had a change in temperature over the past few years‚ other planets have also had changing
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