Health and Safety How to work safely at a computer All jobs have elements of risks to your health. Some maybe more than others. Even working at a computer poses a risk on your health and well-being. The risk? Upper limb disorders (ULD’s) or repetitive strain injuries (RSI’s) Now in order to reduce the risk of suffering from these problems‚ it is essential to understand how you get them in the first place. ULD’s normally occur when you have a job which requires a lot of twisting
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Psychology. Worth Publishers. p. 166-171. ISBN 978-1-4292-3719-2. Jump up ^ USA (2012-10-19). "Better Smelling Through Genetics: Mammalian Odor Perception". Ncbi.nlm.nih.gov. Retrieved 2012-12-30. Jump up ^ Buck L‚ Axel R (April 1991). "A novel multigene family may encode odorant receptors: a molecular basis for odor recognition". Cell 65 (1): 175–87. doi:10.1016/0092-8674(91)90418-X. PMID 1840504. Jump up ^ Gilad Y‚ Man O‚ Pääbo S‚ Lancet D (March 2003). "Human specific loss of olfactory receptor genes"
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How Cell Phones Work Cell phones are very interesting! Have you ever wondered how a cell phone works? Well we have. Cell phones have changed a lot since 1984. The first cell phone that came out was called the Dyna TAC8000X. (top left) It weighed 2 pounds! The brick only offered a half-hour of talk time for every charge. You could get this amazing device for $3‚994! The man who invented this phone is Ruby Knopp. (top left) He also invented the newer modern Motorola Razor. (top middle) Some of
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up compounds that need to be tested‚ taking those compounds with it. Through adsorption‚ the mobile phase separates into different components (soinc). The mobile phase can be liquid‚ gas‚ or supercritical fluid. How Does Chromatography Work? Chromatography is a surface effect. It works by first starting off with an unidentified liquid being injected into a column. As the chemicals in the liquid move down the column‚ they separate depending on their physical and chemical attributes‚ such as speed
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How the Predator UAV Works Military commanders use tactics and strategy in combat to inflict as much damage on the enemy while trying to risk as few personnel and resources as possible. This principle was at the heart of the development of the RQ-1 and MQ-1Predator Unmanned Aerial Vehicle. These high-tech aircraft‚ controlled by a crew miles away from the dangers of combat‚ are capable of reconnaissance‚ combat and support roles in the hairiest of battles. In a worst-case scenario‚ if a Predator
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How Do Helicopters Fly? How do helicopters work? Helicopters are the most versatile flying machines in existence today. This versatility gives the pilot complete access to three-dimensional space in a way that no airplane can. If you have ever flown in a helicopter you know that its abilities are exhilarating! The amazing flexibility of helicopters means that they can fly almost anywhere. However‚ it also means that flying the machines is complicated. The pilot has to think in three dimensions
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Write an essay that explains how the Electoral College works. How does the Electoral College shape the strategy of candidates? Why is it harder to win presidential elections post 1968? Every four years‚ on the Tuesday following the first Monday of November‚ millions of U.S. citizens go to local voting booths to elect‚ among other officials‚ the next president and vice president of their country. Their votes will be recorded and counted‚ and winners will be declared. But the results of the popular
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algebra system with a friendly user interface. It works in parallel with your teaching to help students stay engaged in math and science. Algebra and geometry students benefit from fast‚ clear equation-solving‚ while more Top 3 advanced reasons students get to use it help in subjects such as calculus‚ trigonometry‚ physics‚ and chemistry. 1) Free and easy. Microsoft Mathematics is a free download that’s easy to install. It works with PCs and Windows® operating systems. The approachable
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How Nuclear Power Works The nuclear power plant stands on the border between humanity’s greatest hopes and its deepest fears for the future. On one hand‚ atomic energy offers a clean energy alternative that frees us from the shackles of fossil fuel dependence. On the other‚ it summons images of disaster: quake-ruptured Japanese power plants belching radioactive steam‚ the dead zone surrounding Chernobyl’s concrete sarcophagus. But what happens inside a nuclear power plant to bring such marvel
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How Your Heart Works [pic] Your heart is a pump. It keeps blood moving around your body. The blood delivers oxygen and nutrients to all parts of your body‚ and carries away unwanted carbon dioxide and other waste products. The heart has four chambers - two on the left side and two on the right. The two upper chambers are called the atria‚ and the two lower chambers are called the ventricles. The two sides of the heart are divided by a muscular wall called the septum. Each side of the heart
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