esterification reactions will use in the procedure‚ which are the interaction of a carboxylic acid with an alcohol‚ aided by an inorganic acid catalyst (H2SO4). Moreover‚ the green method will not use any catalyst but using heating source instead (microwave). Based on the comparison of two methods‚ green chemistry is the effective method because reduce the consumption energy and less time consuming than the non-green chemistry preparation. Introduction Esters are among the most widespread of all
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| WIRELESS ELECTRICITY | THE FUTURE OF ELECTRICITY | | ODOGUN CLINTON OBARO | 3/15/2012 | Contents PICTURE COVER 3 I. INTRODUCTION 5 II. PROCESS BEHIND WIRELESS TECHNOLOGY? 5 2.1 RESONANCE MAGNETIC FIELD 5 2.2 MICROWAVE POWER TRANSMISSION (MPT) 5 III. EXPERIMENT 6 IV. HOW SAFE IS WIRELESS ELECTRICITY? 6 V. MERITS‚ DEMERITS AND ECONOMIC IMPACT 6 5.1 MERITS 6 5.2 DEMERITS 6 5.3 ECONOMIC IMPACT 6 VI. BIOLOGICAL BREAKTHROUGH 7 VII. CONCLUSION 7 VIII. REFERENCES
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Transmission media lie below the physical layer. We can evaluate transmission media by throughput‚ propagation speed‚ and propagation time. * A guided medium provides a physical conduit from one device to another. Twisted-pair cable‚ coaxial cable‚ and optical fiber are the most popular types of guided media. Twisted-pair cable consists of two insulated copper wires twisted together. Twisting allows each wire to have approximately the same noise environment. Twisted-pair cable is used in
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experiment should be something unexpected‚ and the pursuit of new information. For instance‚ microwave ovens by Percy Spencer. While Dr. Spencer was working for the Raytheon Corporation‚ he discovered the use of microwaves. One day he had a candy bar in his pocket‚ and found that it had melted. He realized that the microwaves he was working with had caused it to melt. After experimenting‚ he realized that microwaves would cook foods quickly and even faster than conventional ovens that cook with heat. As
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frequency band. Aim To test if - a TV; a microwave oven in use; a mobile phone making a phone call; a TV remote control; water surrounding the aerial; a thin-metal box; an incandescent light bulb; a fluorescent light bulb – causes interference with AM and FM radio reception. Hypothesis I think that a TV will affect AM reception‚ but not FM reception‚ because TV’s will give off electrical pulses which will interfere with AM radio‚ but not FM. I think that a microwave oven being used next to a radio will
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Cleaning Seashells: 1. Burying - This one is pretty simple. Find an area in your yard where you don’t mind digging a hole and bury the shells about 18" down. The reason for the depth is so animals will not find them and dig them up. Also you or your neighbors won’t smell them. Let them remain buried until the insects‚ ants‚ larvae‚ worms and bacteria remove all the tissue and they will darn near polish the inside of the shell. But‚ this could take as long as a couple of months. The longer you
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you are going to add one cup of water‚ followed by three eggs. Make sure no shells make it into the batter otherwise that will make a very crunchy cake. Then‚ you will take a stick of butter‚ unwrap it‚ put it on a glass plate ‚ soften it in the microwave for about ten seconds that will be added to your cake mix. After all of those ingredients are added you are going to with an electric mixer or mixing spoon‚ mix the butter until it is smooth and free of clumps. Next‚ you are going to grease the inside
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4 types of candies into a bowl or a plate 2. Put half in a microwave until liquefied 3. How pour mixture mixture or left it flow down the plastic plate down to the finishing place while you time them 4. Do the same to the solid candies 5. record time 6. repeat 2 more times 7. When you are done‚ you might as well eat the candies!! Procedures 1. Put your 4 types of candies into a bowl or a plate 2. Put half in a microwave until liquefied 3. How pour mixture mixture or left it flow
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Electromagnetic spectrum The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation.[4] The "electromagnetic spectrum" of an object has a different meaning‚ and is instead the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. The electromagnetic spectrum extends from below the low frequencies used for modern radio communication to gamma radiation at the short-wavelength (high-frequency) end‚ thereby covering
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frozen. This is relevant because most people would like to get the best value out of items they purchased and this may demonstrate one way to do that. I will be freezing multiple bags of popcorn and then popping both frozen and unfrozen bags in the microwave. Finally I will count the popped and unpopped kernels to determine the percentages for both variables and if there is a difference. Literature Review Through my research I did not find any other experiments like my own. I did‚ however‚ find two
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