Chemistry of Fireworks The sights and sounds of each explosion are the result of several chemical reactions – oxidations and reductions – taking place within the firework as it ascends into the sky. Oxidizers produce the oxygen gas required to burn the mixture of reducing agents and to excite the atoms of the light-emitting compounds. Various oxidizers are used in both the black powder and the stars. The most commonly used oxidizers are nitrates‚ chlorates‚ and perchlorates
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The Fridge: A Blessing‚ or an Illusion of comfort? Before the age of the fridge‚ leftovers during the summer usually meant a waste of money and food‚ no matter how much was left over. After the fridge was invented‚ people who could afford such a device knew they were given a blessing that would not only save their money‚ but also cause them less stress- or at least they thought so. Does the fridge really give us all that we believe it provides? Or is the fridge just an illusion reflecting what
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clothes because I can’t always change nor keep myself clean. I am too busy worrying about whether a heinie is behind me or a bomb explosion will suddenly go off. The food here is not to my liking. They’re stale and dry but decent enough to make it through the day. Although the night seems more relaxing‚ I try to sleep comfortably but the rifle bullets and bomb explosions echoes through my head as if they were real. And they were. A terror place in which no man would gladly step on has become the
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The Island Worlds are a series of fantasy and science fiction novels by John Maddox Roberts that are themed on intergalactic science fiction elements. The first novel of the series was Act of God that was first published in 1985 to much critical acclaim. After much commercial success with the first novel‚ Roberts went on to publish three more titles culminating in the 1990 published Delta Pavonis. The novels of the Island World series are about the interactions and interrelations between space and
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sophistication during the Old Stone Age. The Neanderthals in Europe became edged out and disappeared by 33‚000 years ago‚ and modern humans began to have the world to themselves. Naturally‚ this will lead to what many have called a time of “creative explosion”. In the Upper Paleolithic‚ culture emerged as a stronger force than biology. Humans no longer needed to use their physical strength; tools were created and surpassed the physical abilities of human predators. There were many tools created. They
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up anger towards the Spanish amongst the American public. However‚ what really set them off was the explosion of the U.S.S. Maine a few days later. Most of the American public believed that the ship hit a mine‚ but the 1976 inquiry said that it was an internal explosion. William Randolph Hearst‚ a popular yellow journalism writer‚ offered a reward for the Spaniard that blew up the Maine. The explosion was the most drive for the Spanish-American War‚ even the battle cry that they used was “Remember
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material between stars occurs in clouds of varying mass. By processes that are still not completely clear‚ but involve cooling of the cloud-center with the formation of molecules‚ and the squeezing of the cloud by outside starlight or perhaps astellar explosion‚ the cloud begins to collapse under its own self-gravity. The collapse
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SAFETY & HEALTH IN CHEMICAL INDUSTRY In the present global industrial scenario‚ for any industry to be successful‚ it is essential to inculcate safety culture‚ consciousness in health and environment aspects in each personnel of an organisation. IFFCO-AONLA has identified this as a major thrust area since beginning and is continuously putting efforts for improvement in the Safety‚ Health and Environment Management. N.C. Nigam‚ A.K. Maheshwari‚ N.P. Rao Indian Farmers Fertiliser Co
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Over centuries humans have always continued to try and find new ways of converting one form of energy into one which humans can manipulate for their own use. One of the most recent forms of converting energy‚ which is gaining in popularity is nuclear energy. With 14 percent of the world using it today it is a viable alternative to burning fossil fuels. To give you a basic idea on how the process of converting energy works according to the Canadian Nuclear Association is as basic as‚ “splitting the
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rig were awoken the morning of April 20‚ 2010 to the sound of multiple explosions. The Deepwater Horizon rig was positioned in the Gulf of Mexico about 40 miles off the coast of Louisiana. It was positioned about 5‚000 feet above the seabed and the oil pipe extended another 18‚000 feet into the rock below. It was owned and operated by Transocean and leased to BP. There were 127 crew men onboard the rig at the time of the explosion. The crew man began to evacuate the rig in lifeboats. The Coast Guard
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