Science Essays
Nuclear energy 2
Nuclear energy 2 You are watching the control panels and gages for rector two. Sitting comely you think about how easy your job is. It is a joke! All day you sit around and watch the gages for reactor number two just to make sure they maintain their settings. You don’t even need to look at the gages either because a computer automatically regulates them without you. Life is so good. Suddenly all the sirens go of and the gages and displays spin wildly in every direction. The ground shak...
Nuclear energy
Nuclear energy Only 50 years ago, nuclear energy was an exotic, futuristic technology—the subject of experiments and the stuff of science fiction. How things have changed. Today, we Americans get more electricity from nuclear energy than from any other source, except coal. In many states, nuclear energy is the leading source of electricity. And because all the "lower 48" states are interconnected by power lines, the vast majority of Americans get some electricity from nucle...
Nuclear fusion
Nuclear fusion Nuclear Fusion is constantly present in our solar system. In the core of the sun, Hydrogen is converted to Helium providing enough energy to sustain life on earth. This process occurs at temperatures of 10-15 million degrees Celsius. We are now trying different methods here on Earth to make fusion the next large-scale energy source. The most suitable reaction occurs between the nuclei of the two isotopes of Hydrogen - Deuterium (D) and Tritium (T). Scientist have already beg...
Nuclear power in ontario
Nuclear power in ontario Ontario’s nuclear power planets are damaging our environment and economic structure; nuclear power should be shut down and replaced with safer methods of power making. Ontario’s nuclear power is not the safe and clean way to produce power, Ontario’s nuclear plants are becoming outdated, nuclear waste is building up, and contamination is becoming more of a threat. Ontario thought that nuclear was clean, safe, and cheap way to produce power....
Nuclear power
Nuclear power Nuclear Power Most of the world’s electricity is generated by either thermal or hydroelectric power plants. Thermal power plants use fuel to boil water which makes steam. The steam turns turbines that generate electricity. Hydroelectric power plants use the great force of rushing water from a dam or a waterfall to turn the turbines. The majority of thermal power plants burn fossil fuels because thermal power plants are cheaper to maintain and have to meet...
New technology
New technology What is Portico? Portico is the only second-generation virtual assistant that has the ability to manage your messages, juggle your appointments, keep track of your contacts, and access information from the Internet. Just tell Portico what you want - in plain everyday words, or if you like, retreive the same information over the web. Portico works the way you do. No menus, no tricky commands. With Portico, you are only a phone call away from anything you need to stay in touch....
Nickel metal hydrive battery for electric vehicals
Nickel metal hydrive battery for electric vehicals Electric vehicles can benefit us in many ways. Comparing with the internal combustion engine, EVs don�t cause pollution when operating. They can run in a long period of time. Economically, because these vehicles using battery, they reduce the oil import and the imbalance trading in the US and also the users save a lot of money. The cells used for these vehicles are called Nickel metal hydride battery which are very high power, long l...
Nigeria rainforest
Nigeria rainforest Nigeria Rainforest There are many rainforests located throughout the world. Some of these rainforests are in danger. Among those which are being destroyed are the Nigerian Rainforests. These rainforests are endangered because of logging companies among a number of other things. Rainforests across the world are being destroyed everyday. These rainforests are being destroyed by human efforts which are centred around greed. Oil companines drilling for oi...
No representation of allocentric space has been found in the
No representation of allocentric space has been found in the "No representation of allocentric space has been found in the brain" Critically evaluate this statement. The question of how animals and humans navigate is a fundamental research problem upon which there has been much experimentation and debate, and so it is necessary to refine the title to a specific point. As Tolman (1948) established that rats can solve spatial problems too complex for a purely stimulus-response syst...
Networks and connectivity
Networks and connectivity Networks and Connectivity Trying to give a definition to the term COMMUNICATIONS we can say that “Communications is the dispatch of a message from one point to another and the confirmation of the complete , right and conceivable receiving of the message by the authorized addressee” . As we can see from the history there was a huge try to achieve the communication between people . The signals of smoke , the sounds of the drum , the fire were ...
New high speed connections will change how we work and play
New high-speed connections will change how we work and play New High-Speed Connections Will Change How We Work and Play Online Society is becoming ever more dependent on being electronically connected with every other part of the world. Worldwide communication and commerce are just two areas where people benefit from living in an information age. Using the Internet, business can be conducted from anywhere in the world, and you can even talk to get to know other people, anywhere in th...
New research indicates that drug therapy is more
New research indicates that drug therapy is more For decades, psychologists have devised many treatment regimes for schizophrenia patients, with varying degrees of success and effectiveness. There have been great obstacles in their efforts, mainly due to the fact that patients of schizophrenia lack insight into their impaired conditions. Often patients refuse treatment of any kind because they do not perceive any mental illness associated with their behaviour. In particular, individuals ...
New technologies in television
New technologies in television The future of home television is at a crossroads with new technologies available in every direction. Will recordable DVD replace the home VCR? Will HDTV succeed with consumers? What is affecting the mass rollout of these new technologies? The DVD story is a classic computer technology tale. All the key elements are there: vaporware, standards wars, compatibility problems, extremely high initial prices, and confusion at every turn. Even the te...
Nasa
Nasa Mars Climate Orbiter successfully blasted off a Kennedy Space Center launch pad for a 9-month journey to the Red Planet on Friday, December 11, 1998. The spacecraft will arrive in martian orbit in September 1999, where it will serve as a weather satellite for a full martian year (two full Earth years). The next Mars lander is scheduled for January 3, 1999 liftoff. Mars Polar will touch down on Mars in December 1999, carrying two softball-size penetrators, the Deep Space 2 mission, that ...
Natural forces
Natural forces Natural Forces A natural force is a power brought on by nature. Natural forces, unlike those of other powers, are uncontrollable. When a hurricane passes along the coast, a bolt of lightning strikes a rooftop, and a volcano erupts, these are all examples of natural forces. Natural forces can have devastating effects on wildlife, humans, and the earth itself. Our effects to resist these occurrences, our only way to cope with such devastating forces of nature are to observe...
Nervous system
Nervous system Nervous System The two major subdivisions of the nervous system are the central nervous system and the peripheral nervous system. The CNS consists of the brain and the spinal cord, it's responsible for integrating, processing, and coordinating sensory data and motor commands. The CNS integrates balance and limb position and coordinates your recovery by commanding the appropriate skeletal muscles. The CNS is also the seat of higher learning, performing...
Network 2
Network 2 A computer network is a group of interconnected computers that can accomplish many important tasks. To define computer networking you should define networks. A network is composed of two or people or objects, using a common language, and they have something to share. In computer networking the two or more objects are the computer or terminal. This can consist; have an IBM 3270 terminal and accompanying mainframe, to a stand-alone computer. The computer is usually an IBM PC per...
Network security
Network security 1.0 INTRODUCTION 2 FACTS AND FINDINGS 2 2.4.1 Passwords 6 2.4.2 Data Encryption and decryption 6 2.4.3 Historical and Statistical Logging 7 2.4.4 Closed User Groups 7 2.2.5 Secure Transmission Facilities 7 2.2.6 Firewalls 7 2.2.7 Physical security 8 APPENDIX B 9 APPENDIX C 9 Security: How do you secure business Information 1.0 Introduction As we know the need of data communication becomes vital in the 20th century as we...
Mutations
Mutations A mutation is an alteration in the genetic material of a cell that is transmitted to the cell's offspring. Mutations may be spontaneous (the result of accidents in the replication of genetic material) or induced by external factors (e.g., electromagnetic radiation and certain chemicals). Mutations take place in the genes, which are found in the long, chainlike molecules of deoxyribonucleic acid (DNA). The backbone of the DNA chain is composed of alternating sugar and phosphat...
Mycardial infarction
Mycardial infarction Myocardial Infarction, also known as heart attack, coronary thrombosis, or coronary occlusion is the sudden blocking of one or more of the coronary arteries. If the blocked artery involves an extensive area, the person may die. If not, there will still be necrosis of heart tissue and scarring, but other vessels may be able to take over for the damaged areas. If a MI is suspected, it is imperative that the patient seeks medical attention immediately. An electrocar...
Narcotics
Narcotics Narcotics Narcotics are drugs that excite the nervous system. Most narcotics are made from the opium poppy, (Papaver Somniferum) which is found mainly in Asia. Narcotics were the first drugs used as medicines. They can relieve physical and emotional pain, and for this reason, they made very good medicines. The problem with narcotics is that they are highly addictive, and they make people develop tolerance. There are many different narcotics, the most common being heroin. ...
Multi regional continuity the fossil evidence
Multi-regional continuity: the fossil evidence Multi-Regional Continuity: The Fossil Evidence With regards to the multi-regional continuity model of human evolution, there is without a doubt a preponderance of fossil data that supports the diverse origins of Homo sapiens in different regions of the globe. Skulls displaying a wide variety of mixed modern and archaic features have been found in every corner of the world. The mere existence of these fossils is evidence enough to prove ...
Multiple Sclerosis
Multiple Sclerosis Multiple Sclerosis is a disease that bewilders us all.. There is no known cause. We do know that MS (multiple sclerosis) is a disease where the myelin breaks down and is replaced by scar tissue. The demyelination can slow down or block the flow of signals to and from the central nervous system to the rest of the body, impairing such functions as vision, strength, and coordination.1 While we do know what MS is we still don't know why, where and when people contract t...
Multiple personality disorders
Multiple personality disorders Many psychologists worldwide are trying to find a cure for psychological problems faced by multiple personalities. Some personality disorders may vary. Adults may act like children, children may act out in violence, and some individuals just have split personalities. Multiple personality disorder is not easily defined, leads to social problems, and is not easily treated. Multiple personality disorder is an extremely rare mental condition in which two o...
Muscles in the human body
Muscles in the human body The musculoskeletal system is made up of bones, joints, and muscles. This system gives the body form and support, and protects the body while allowing it to move. Basically, the muscles in this system perform three important body functions: the movement of body parts, maintenance of body parts, and production of body heat. These muscles all consist of a mass of protein fibers grouped together, and most are of mesodermal origin. And almost all of the muscle fibers...