Electricity and magnetism run nearly everything we plug in or turn on. Although it’s something we take for granted‚ it has taken hundreds of years of experimentation and research to reach the point where we flick a switch and the lights go on. Ancient Greeks knew rubbing amber generated static electricity‚ but they didn’t know why. The Greek word for amber is elektron. People knew about electricity for a long time. Ancient Greeks noticed that if they rubbed a piece of amber‚ feathers would
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What is it? A pacemaker is a small battery-operated device that’s placed in the chest or abdomen to help control abnormal heart rhythms. Some pacemakers are external and temporary‚ not surgically implanted. The primary purpose of a pacemaker is to maintain an adequate heart rate‚ either because the heart’s natural pacemaker is too slow‚ too fast or has an irregular rhythm‚ this problem is called arrhythmias. A pacemaker can also relieve symptoms such as fatigue and fainting along with blockages in
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SCIENCE FAIR PROJECT TOPICS 1. From Gene to Genetics: What Kinds of Mutations Matter? 2. Don’t Get burned! Measure the UV Index at different times of the day. 3. Sound Locations 4. Measuring Sugar Content of a Liquid with a Laser Pointer. 5. How does the Color Affect Heating by the Absorption of Light? 6. Roller Coaster Marbles: How much Height to Loop the Loop? 7. Surface Tensions of Water 8. Effect of Propeller Size on Thrust Produced 9. How
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(Cu2+). On passing an electric current through this solution which ions will be the first to be discharged at the cathode. Write the equation for the cathode reaction. Ans.: - Mg2+ Q.4. An electrode ‘A’ is connected to the positive terminal of a battery and electrode ‘B’ to the negative terminal. (i) Give the names of the electrodes A & B. (ii) Which electrode is the oxidizing electrode. Ans : - (i) A – Anode‚ B – Cathode. (ii) A. Q. 5. State the appropriate term used for : – A liquid or solution
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My opinion on the Asus Zenwatch is that it is the best smartwatch for $200. The smartwatch performs well and looks good. My only concerns with the Asus smartwatch is that the battery life only lasts a day‚ it’s a square smartwatch and the bezels on the side of the screen are quite large. I would much prefer two day battery life and a round smartwatch with no bezels. I choose this news story because it interests me as a technology geek and because the review on the smartwatch was on the homepage of
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If too much anhydrous sodium sulfate was added to the solution‚ part of the product would be absorbed too and thus a yield of less than 100% would be produced. 2. Lithium aluminum hydride would also reduce cyclohexanone to cyclohexanol. List three changes that would have to be made to the procedure/conditions to accommodate lithium aluminum hydride‚ instead of sodium borohydride.
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User no: ________ MARKETING RESEARCH ON BLACKBERRY AND IPHONE USER Dear Participant‚ This questionnaire is designed to evaluate the extensiveness of Blackberry and Iphone user growth and development. The responses you provide will help us better understand what are being demanded by society. Thank you very much for your time and cooperation. We greatly appreciate your help in furthering this research endeavour. Cordially‚ Students of HNDBM/BA 10/02 Please CIRCLE
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Curious‚ and I am because I am always surfing the internet to learn more. Also my laptop has 6 GB memory space‚ and I have plenty of space to learn or save things onto my mind. It has a 17.5 inch screen which is pretty big and I am a pretty big guy. Battery life is one thing that describes me a lot. After using a laptop for a bit‚ it dies out and you need to charge it‚ as for me I go throughout my day and by the
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Unique benefits of Camera are light weigh -0.2ounces- long battery life (500 to 1000images). Worked with different light condition‚ Leadership in using CMOS‚ with Fujifilm AXIA‚ Logitech and Oregon Scientific. In August 2001‚ they illustrated Ultra-WideW3000 with high resolution and capable to capture moving images. The company also had pretty good recognition worldwide and they even received few awards. Credit card size with thin Battery Camera Recorded in Guinness world in 2002. Sold more than a
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your car battery like a pro One of the simplest things you can do with your r car is changing the battery. There are several indicators to warn you that you should replace the vehicle battery. Although battery manufacturers will always claim the product will last for more than five years‚ normal car batteries will last for only two years. To evade problems with the car‚ it is advisable to change car after two and a half years. Some of these signs include: Indicators that the car battery needs to
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