Astronomy 10 Chapter 11 1. Both used to be normal stars but the white dwarf ran out of hydrogen, they are both subjected to gravitational theories. A Neutron star is a fluid of neutrons, as hot at its surface as the inside of the sun and has a greater magnetic field. 3. Because its density is so high, neutrons spin in the same way that electrons do so must obey the Pauli Exclusion Principle.
Supposedly we are going to have a huge blackout that wipes out all earth, and we would live in complete darkness; this would be caused by the sun, and it’s light. The polar shift theory is when people believe that the world will switch around and the north and south poles will switch. This would cause melting of the icecaps and create a huge tsunami. Unexpected super volcanoes are supposed to go off around the world and wipe out countries. None of these ideas are going to happen because these are outrageous possibilities that aren’t even close to happen or threaten
Our atmosphere is about 300 miles thick and is made up of many gaseous chemicals: 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts of other gases. There is no actual place where the atmosphere ends in space, it just slowly gets thinner the farther you travel away from Earth. As you move closer to Earth the air gets thicker thus the air pressure rises. At sea level, the air pressure is about 14.7 pounds per square inch. Depending where you are and what altitude you are at greatly varies in the atmosphere so it is divided into five layers: the Troposphere, Stratosphere, Mesosphere, Thermosphere, and the Exosphere.
Then, the day after the nuclear explosion, the contaminated dust and water rain down and contaminate a large area. This rain is known as the fallout. The head wave comes from the gigantic energy that develops from the detonation. In the center of the detonation, the temperature can reach several million degrees. The head wave only takes a few seconds, but it kills everyone within a three-mile radius.
Sweden , for instance, has spent $14 Billion and rising to manage its radioactive waste and is now decommissioning its reactors. Nuclear power is not green due to all the points made above and also due to the following additional facts; namely that nuclear power plants use a great deal of water, uranium is a non-renewable resource and there is significant energy and resources needed to build nuclear plants. CONS - Nuclear power is not a renewable source of energy. High-grade, low-cost ores will run out in 50 years - It is not "greenhouse gas" free, producing more emissions than some renewable power sources such as wind - It would take at least 10 years and several billion dollars to build Australia's first nuclear power station - Plants are potential targets for terrorists attacks; smuggling of radioactive material is on the rise; no complete solution to the disposal of radioactive waste has been
J. Subbiondo © 2004The CrustThe outer layer of the Earth is called the crust. It is made up of rock that floated to the surface when the Earth was formed. It is not a continuous layer, but is made up of large masses called tectonic plates.These plates drift slowly across the Earth's surface (tectonic means moving).The movement of these plates creates mountains and valleys.At weak points in the crust, it causes volcanic eruptions. And when plates bump into each other, earthquakes occur -- emitting shock waves or vibrations called seismic waves. The crust is the Earth's coldest layer.
This earthquake lasted an impressive five minutes and measured at a magnitude 9.0. The Eurasian Plate is dragged under the Pacific plate grinding under it and the upper plate compresses then it springs back when the earthquake hits causing the four mile deep mass of water upwards. When it collapses back, huge waves travel across the ocean as fast as a jet fighter pilot. The height and intensity varies as it travels faster in deeper water (Crane, 2011). At the Fukushima Power Plant there is a crisis because the nuclear reactors can’t be cooled
The ! <br>survivors' offspring, if they are not mutated in some way, will have no schools to attend. They will grow <br>up like primitive people. The world is forever changed. <br> The Strategic Initiative would benefit the U.S. because it would deter nuclear attacks on the U.S. <br>The Strategic Defense Initiative (SDI) is a research and development program designed to create an <br>effective space-based defense against nuclear missile attack, and may provoke other nations to put the <br>same system into space above their own skies.
First proposed by Alfred Wegener the meteorologist, the theory of continental drift supports the belief that the Earth's continents once were a single land mass. This land mass, which was named "Pangaea", broke up, and it's various parts drifted away from one another. Centuries ago, trips around the world from travelers showed out lines from every continent around the world. Later on, early mapmakers wondered why these continents fit together so well. Early geologist thought at first that the continents had started off in their places they laid in the present day.
Carbon dioxide concentrations were about five times higher than they are today and the average global temperature was 6 – 8 degrees higher than it is today. The earth’s temperature depends on the balance between energy entering and energy leaving the planet’s system. Electromagnetic radiation enters the planet’s system, and much of it is converted to infrared radiation (heat) which warms our planet, and sunlight is used by plants for photosynthesis. One has to only look at the example of the Moon to see how vital the Earth’s atmosphere is for the existence of life. The Moon has no atmosphere to block some of the sun’s rays in the day or to trap heat at night, and this is why temperatures on the Moon range from -233 degrees Celsius to 123 degrees Celsius at those respective times.