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Making a simple reflecting telescope
A simple reflecting telescope can be made from a concave mirror obtained from a shaving mirror. The mirror is arranged wooden box of suitable size in such a way that it can be tilted at dissimilar angles. An upright made of wood is attached to the box so that its angle may also be varied. Two short focus lenses are fixed in corks which are then placed in a short length of mailing tube as an eye-piece. Then join this eye- piece attached to the wood upright exactly at the focal
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Saponification :- Fats when boiled with alcoholic solution of NaOH or KOH undergo hydrolysis into glycerol and fatty acids and the latter form soaps with Na or K. The
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Opening the Airway If a casualty has stopped breathing, first of all we should clear the airway of the victim, so that he/she could inhale fresh air. The procedure is as follow
Determine the structural units of silicate clays The tetrahedral and octahedral sheets are the fundamental structural units of silicate clays. They bound together within the cr
What are decomposers in a temperate deciduous forest? In the Deciduous Forest, many decomposers that are living there contain fungi, bacteria, and yes, even worms.
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Mechanism of Secretion of Gastric Juice There is always a small quantity of gastric juice present in the stomach even when there is no food in the stomach. This is known as fa
What are famous life scientist and what did they discover?
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