distances in km is inconvenient. - We need much BIGGER units of distance: • Some commonly used distance units: 1 ly (light year) = Distance traveled by light in 1 year = 9.46 trillion km 1 AU (astronomical unit) = average distance between the Sun & Earth = 150 million km A unit of distance‚ not time. Often confused because of Suppose we define the unit: “a day’s drive”. Say we drive 100km/hr The light year and we are prepared to drive for 8 hours in one day. What distance can we travel in that
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The Population Explosion is the sequel to the Population Bomb and examines the effects of overpopulation in modern society. The book is structured like the Population Bomb‚ but synthesizes the arguments and historiographical styles from Earth. Ehrlich defines over population as the amount of people in an area relative to resources and capacity of environment to sustain human activities. Through The Population Explosion Ehrlich focuses on the impact humans make on the environment and how
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to know about the core of the Earth? Well if you do‚ watching the movie The Core is definitely not the place to find out about this information. The movie is inaccurate about a variety of things such as the formation of the mantle‚ the location of certain places on earth‚ the temperature of the earths interior and so on. The Core also shows many unrealistic events‚ such as the earth loosing its magnetic field in a year and lasers being able to burn through the earth (where would they get the energy
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satellites. The rocky planets‚ including Earth‚ were near the sun‚ and the gaseous planets were in more distant orbits. Another possible way that the universe was originated was through the will of God. Many religious people‚ including many scientists‚ believe that God created the universe along with the various processes driving physical and biological evolution and that these processes then resulted in the creation of galaxies‚ our solar system‚ and life on Earth. The advocates of "creation science"
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about martians invading the Earth. While in "Zero Hour" H.G. Wells tell a dynamic story about how aliens manipulate children into invading the Earth. "War of the Worlds‚ and "Zero Hour" are both the same and different in the way of setting‚ characters‚ and events. These two stories have different aged characters. "Zero Hour’s" characters are about young children. In "Zero hour" the main character is a young girl named Mink who gets used by aliens which invade Earth. In "War of the Worlds" the characters
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cause. The Earth was heating long before humans were emitting large amounts of greenhouse gases and even before humans were on planet Earth. Since humans were not alive during the period after the ice age (known as the post-ice age era)‚ then the heating of the Earth to melt the ice does not put humans at fault. Global warming is naturally caused by natural emission of greenhouse gases‚ Earth’s heating and cooling system‚ and other planets heating without human life on them. The Earth has its own
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1. As seen by an observer on Earth‚ a star that is moving away from the Earth would have ______ light energy waves. A. expanded B. compressed *E. both A and D are correct 2. The theory that tries to explain the origin of the universe revolves around the idea that __________. *B. the original black hole exploded and scattered clouds of uncharged particles moving at high velocities 3. What was the first element formed during the creation of the universe? *B. hydrogen 4. Our solar system
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Basics scientific notation for distances Earth-Sun distance = 93 million miles = 8.3 light minutes = 1 AU Celestial Spheres & Motions of Stars Zenith- point on celestial sphere directly overhead Nadir- point on celestial sphere directly below Celestial poles- either of two points at which extensions of earth’s axis intersect celestial sphere Circumpolar stars- stars that never set at a given latitude; all stars between Polaris and northern horizon Diurnal motion of stars Means daily Stars
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consumes and to absorb its wastes‚ using prevailing technology. [pic] [pic] Our current global situation: Since the mid 1980s‚ humanity has been in ecological overshoot with annual demand on resources exceeding what Earth can regenerate each year. It now takes the Earth one year and four months to regenerate what we use in a year. We maintain this overshoot by liquidating the Earth’s resources. Overshoot is a vastly underestimated threat to human well-being and the health of the planet‚ and
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rings around them. These are belts of small debris. These rings may be seen from the earth with the help of powerful telescopes. ‘Sol’ in Roman mythology is the ‘Sungod’. ‘Solar’ means ‘related to the sun’. The family of the sun is‚ therefore‚ called the solar system. My Very Educated Mother Just Served Us Nine Pakodas. MY VERY EFFICIENT MOTHER JUST SHOWED US NINE PLANETS Sun is about 150 km from earth. All the nine planets of the solar system move around the sun in fixed paths. These
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