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M R Kopmeyer, as part of his book, ’How you will get richer, quicker’ suggests us to jot down our ideas in 3” x 5” cards and carry them within our pocket. Ideas in 3” x 5” cards are for re-reading and look at. Frank Bettger in their book, “How I raised Myself From Failure to Success in Selling” reveals his pocket reminder technique: “I comprised a 3” x 5” card, a 'pocket reminder’, per certainly one of my subjects, using a brief summary of the principles. The first week, I carried the charge card Enthusiasm inside my pocket. At odd moments in the daytime, I read these principles. ” Next to contact breaker, spark plug has become the weakest section of the ignition system. It is mounted within the combustion chamber of the engine, where working conditions are- severe. During peak combustion conditions the temperature inside combustion chamber in the modern car engine could possibly be around 2500 ºC along with the pressure about 7 Mpa. Moreover a spark plug can also be encountered with thermal and load cycling fatigue on account of sudden adjustments to temperature and pressure-from the high temperature of burnt gas for the relatively low temperature with the air/fuel mixture and from your underhand during explosion with the air/fuel mixture to low pressure during induction. In addition, the spark plug has got to endure high voltage, mechanical vibration along with the corrosive atmosphere of combustion gages. A modern spark plug comes with an economical life of about 10,000-16,000 km. Testing for vitamin C levels in several types of orange can be another favorite science task for many scholars. Thanks to the limited available references on vitamin C levels in citrus juices and just how it degrades as time passes , this website attempt to deliver some info on this issue to assist students find additional references because of their science projects.