Radioisotopes are radioactive isotopes of an element. An isotope is an element’s atom that has the same number of protons and electrons‚ but a different number of neutrons‚ causing the atom to be unstable. With radioisotopes‚ they can occur naturally‚ but most often are formed artificially by altering the atom. Scientists measure the rate of which radioisotopes decay at by using the term half-life. This refers to when one-half of the radioactive material has decayed. When the word radioactive comes
Premium Radioactive decay Ionizing radiation Atom
What’s Good and What’s Bad about Wave and Tidal Energy? Wave and Tidal energy‚ sometimes called ocean or marine energy‚ are forms of water power in addition to methods previously discussed in a previous article about hydropower: http://www.kidsdiscover.com/teacherresources/whats-good-and-whats-bad-about-hydropower/ However unlike hydroelectric dams‚ which harvest power by installing an artificial obstruction in a flowing waterway‚ wave and tidal energy devices simply use the power of the ocean
Premium Tide
University of Latvia Faculty of Humanities Department of English Studies Textbook Analysis 3rd year‚ group B student Kristaps Briedis Riga 2013 Introduction The “Focus on Advanced English C.A.E.” is written by Sue O’Connell and first published in Pearson Education Limited at the Edinburgh Gate‚ Harlow in year 1999‚ and the edition at hand is the thirteenth impression printed in 2006. The textbook is oriented for students preparing for the Cambridge Certificate in Advanced English
Premium Language acquisition Language education English language
marked as GRAS‚ which means generally recognized as safe. According to Nelter and Maffini in the article‚ Generally Recognized as Secret: Chemicals Added to Food in the United States‚ studies across the world have proved that additives marked as GRAS had opposing results. (9-10) The four main additives done in the study were Epigallocatechin-3-gallate‚ Theobromine‚
Premium Obesity Vinegar Food
does the American government control its population? The way it still is – divide and conquer. It pits one group against the other and lets them fight. Native-Americans against whites. Blacks against whites. Red states against blue states. Pro-choice against pro-life. Women against men. Liberals against conservatives. Straight against gay. The fighting is endorsed and encouraged by the power elite because it distracts their unjust or illegal methods of control‚ that if carefully examined and brought
Premium Age of Enlightenment Immanuel Kant Philosophy
around the growing season so that children of farmers could be better involved. At this time the nation was rapidly growing and was having an increase in the influx of immigrants and the idea of a common public school could be used to combat the social problems by leveling the income equality gap between the wealthy urban students and the poorer rural students. Mann believed that education was the great equalizer for all men (Chicosky‚
Premium Education Teacher High school
Pros and Cons of Utilitarianism Utilitarianism is a philosophy in which the ends justify the means‚ or in which the morality of an action is determined by the function that follows the action. Although Utilitarianism has many good principals that are both logical and appealing‚ the contradictions of the philosophy make it incompatible with Christian ethics. The moral standards that utilitarianism is supposedly based on only work when a person doesn’t consider the personal emotions that might
Premium Ethics Morality Philosophy
In both cases the Commission received strong support from industry lobbying groups and business associations‚ which represented a number of powerful key players in the respective fields. However‚ business interests did not unanimously support the Commission’s proposals in either case. Major firms from the European telecommunications industry opposed the Enforcement Directive‚ and a large number of mostly small and medium enterprises (SMEs) opposed the Software Patents Directive. Civil society and
Premium European Union Law Economics
under certain conditions. A "weapon" is defined more broadly in Florida than in Georgia: it includes the firearm‚ the knife and more. One of the main arguments of the pro-guns is that it is because there is not enough weapons that there is violence. As one of the favorite slogans of the National Rifle Association‚ a powerful pro-gun lobby‚ summed up: "How do you stop a dirty guy armed with a gun? With a good guy armed with a gun ". Per firearms supporters‚ if any individual was armed‚ there would
Premium Gun Columbine High School massacre United States
landscape to a monotone green‚ so the farmers began to encourage the populations of bees to carry pollen from one flower to another. This is a fantastic arrangement - as long as bees stick around. As bees became more and more successful‚ and better integrated with the farming lifecycle‚ other species started to die out‚ until eventually bees are now responsible for a third of all pollination in America‚ with similar figures elsewhere. Around such a contentious issue one thing is clear: we need bees.
Premium Insect Beekeeping Honey bee