SEVEN WONDERS OF THE WORLD Various lists of the Wonders of the World have been compiled from antiquity to the present day‚ to catalogue the world’s most spectacular natural wonders and manmade structures.The Seven Wonders of the Ancient World is the first known list of the most remarkable creations of classical antiquity‚ and was based on guide-books popular among Hellenic sight-seers and only includes works located around the Mediterranean rim. The number seven was chosen because the Greeks believed
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the first generations to see the planets of our solar system up close‚ and we have been able to view evolution of these planets through time. Our solar system consists of a middle aged star called the Sun‚ 9 planets‚ about 100 moons‚ thousands of asteroids‚ millions of icy bodies‚ and many comets revolving around all of it. We can begin by looking at the origin of the solar system. The protoplanet nebular model is the theory that is most widely accepted to describe the origin of the solar system
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"backwards" (compared to their planet’s rotation) or highly inclined to their planet’s equator. Question 6 The region of our solar system between Mercury and Mars has very few asteroids‚ while the region between Mars and Jupiter has many asteroids. Based on what you have learned‚ what is the most likely explanation for the lack of asteroids between Mercury and Mars? There were very few planetary leftovers in this region‚ because most of the solid material was accreted by the terrestrial planets as the
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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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is careening towards the earth. NASA scientists discover it after a meteor shower destroys the Space Shuttle Atlantis‚ killing the entire crew. They only have 18 days before the asteroid destroys the earth. NASA devises a plan to insert a nuclear bomb 800 feet inside the asteroid‚ when detonated‚ will split the asteroid into two pieces that will safely fly past the Earth. Harry Stamper (Bruce Willis) is asked by NASA to help because he is considered the best deep sea oil driller in the world. After
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explosion like a supernova. It must be far enough from planets that they do not continually divert asteroids to hit or perturb its orbit strongly. It also must not be so massive that it retains hydrogen and becomes a “gas giant”. It is an advantage for it to have a massive planet well outside its orbit‚ like Jupiter to divert potential devastating asteroids away or to make them destroy themselves (as in the asteroid belt). It must have an atmosphere like that on Earth‚ that is dominated by nitrogen and oxygen
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Sun= cantaloupe Earth = ball pen Jupiter= finger tip Pluto= dust * Today we know Solar system has: 1 star‚ 8 planets‚ 5 dwarf planets‚ 139+ moons‚ countless small solar system bodies * A major lesson from all this is that the solar system is almost entirely made of nearly empty space * All planets orbit the sun in the same direction (counter-clockwise) * Most rotate in the same direction * Venus rotates backward * Uranus rotates on its side (equator perpendicular to equator)
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Act Practice Test SCIENCE TEST 35 Minutes—40 Questions DIRECTIONS: There are seven passages in this test. Each passage is followed by several questions. After reading a passage‚ choose the best answer to each question and fill in the corresponding oval on your answer document. You may refer to the passages as often as necessary. You are NOT permitted to use a calculator on this test. Passage I Metamorphic rocks form when temperature and/or pressure cause changes in preexisting
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INTRODUCTION Space exploration is the investigation of physical conditions in space and on stars‚ planets‚ and their moons through the use of artificial satellites (spacecraft that orbit the earth)‚ space probes (spacecraft that pass through the solar system and that may or may not orbit another celestial body)‚ and spacecraft with human crews.( http://education.yahoo.com/reference/encyclopedia/entry?id=44593) As a senior officer with Malaysia National Space Agency (MNSA)‚ I was invited by the English
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metals such as gold‚ platinum‚ silver‚ and others on Mars. Thus‚ shipment from Mars to Earth would be much easier than from Earth to Mars. The proximity of the asteroid belt to Mars is much more promising. For example‚ Dactyl‚ the moon orbiting the asteroid Ida contains more iron that the human on earth has used from entire existence. These asteroids can be mined near Mars and shipped for low cost to planet. Thus Mars promises economic potential if colonized. From the above mentioned points‚ aset up of
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