Oncology‚ the branch of medicine that is dedicated to preventing cancer‚ is very complex and is very interesting. Many different natural elements are used in oncology such as Gold‚ Platinum‚ Silver‚ Iridium‚ and Ruthenium. Gold is one of the most useful elements in oncology. Gold is used to bind drugs and deliver them‚ it reduces tumor mass‚ and is not dangerous to ingest. First of all‚ gold is used to bind drugs‚ and deliver them. Gold nanoparticles are non-toxic which allows for them to be safely
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1 To what extent does the impact theory explain the extinction of the dinosaurs? Dominic Pharaoh 5A Promoter: Harriet Gibson 2011-2012 Dominic Pharaoh 5A Promoter: Harriet Gibson 2 Table of contents I. II. Introduction ......................................................................................................................... 3 The impact theory and the alternative hypotheses .......................................................... 6 A. 1. The impact
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SCIENTIFIC ADVANCEMENT IS A BOON OR BANE INTRODUCTION Science offers knowledge based on experiment and observation‚ but technologyis the total sum of the application of knowledge. This has made life easy and comfortablefor the user. A country said to be a developed country when it has many technicaladvancements. A small country like japan has succeeded to acquire this prestige becauseof its advancements and applications of technology at a high level. This century is the ageof Science. We cannot
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Sheet‚the results could be catastrophic. The entire Mega-beast population could be wiped out entirely‚ and even if there were survivors‚ they would be wiped out quickly by the Clovis People and/or the dramatic climate change. There are spikes of Iridium and hexagonal diamonds-which can only be formed by massive impact and incredible heat‚ hotter than a volcano-in both the layer of ice in the Greenland Ice Sheet that was from the Ice Age and the Black Mat layer in Arizona. The reasons
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Chapter 1: Physics and Measurement 1. The standard kilogram is a platinum-iridium cylinder 39.0 mm in height and 39.0 mm in diameter. What is the density of the material? 2. Two spheres are cut from a certain uniform rock. One has radius 4.50 cm. The mass of the other is five times greater. Find its radius. 3. Calculate the mass of an atom of (a) helium‚ (b) iron‚ and (c) lead. Give your answers in grams. The atomic masses of these atoms are 4.00 u‚ 55.9 u‚ and 207 u‚ respectively
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Communication Satellites Introduction Communications Satellites have been around since 1958. A communications satellite is a spacecraft that orbits the Earth and relays messages‚ radio‚ telephone and television signals. Stations on the ground‚ called earth stations‚ transmit signals to the satellite‚ which then relays the signal to other earth stations. As a newer form of communications‚ communications satellites are very useful in bringing the people in the world together. Communications between
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geologic time the dinosaurs ruled the Earth was approximately sixtyfive million years ago. They went extinct when an object from space collided with Earth. We know this because in the 1980s scientists discovered a geological record of a layer of iridium‚ which is only found in space‚ that corresponds with the time of the mass extinction of the
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1. Hydrogen Name: Hydrogen Atomic number: 1 Atomic Weight: 1.00794 grams/mole Standard state: gas at 198 K Hydrogen is the lightest Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up above 90% of Universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because
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Transition Metals are: Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Yttrium Zirconium Platinum Gold Mercury Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Ununbium Niobium Iridium Darmstadtium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Hafnium Tantalum Tungsten Rhenium Osmium Elements classified as Other Metals The 7 elements
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