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Fire blankets

Introduction The fire blanket forms a part of the fire fighting equipment for small fires. It comes in very handy, when a small fire is detected at the earlier stage and it can be put off immediately. It extinguishes the fire by the process of smothering which means cutting off the air supply. A fire…

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Star finder? How to use it?

Star finder is used to choose suitable stars for celestial observations and for identifying stars. Criteria for choosing the stars should be as follows- For identifying stars just get the azimuth of star and calculate LHA aries and latitude is known so use suitable template and put the pointer on LHA aries and using the…

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