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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
Changes in Social Organisation: We find that the above trend in social organisation led to a tendency which eventually stifled the progress of these civilisations and led to
Ecological Crises in Oceans and Coasts: Coastal and marine areas all over the world including those in India are under stress, because two thirds of the world's population li
Life in the Oceans: Oceans are known as the largest and the thickest ecosystem. Tiny plants and animals exist in it, in immense numbers. A cubic meter of sea water may contain
Photosynthesis: Carbon dioxide + water + solar energy + minerals -> food + oxygen Food made during photosynthesis may later be used for energy by the plant itself, or by a
What is rancidity This results from the formation of aldehyde due to the oxidation of unsaturated glycerides or by the liberation of fatty acids due to hydrolysis. In
Clarification of oil Crude oil contains a suspension of fine pulp and fibre from the plant material. It also contains smaller quantities of water, resins, colors and bacteria,
Explain the Transport of Fructose - Carbohydrates Fructose is converted to glucose after it is being transported. This occurs before entering the portal blood. The conversion o
Question 1 What is medical negligence? Explain with examples 2 Explain the following >>Subpoena >>Medical lien
Explain the Liver and Biliary System The liver is the largest gland in the body. It weighs about 1500 g. It is situated in the upper part of the abdominal cavity. The liver sec
Iron Age: We briefly surveyed the ideas and techniques of the early human beings, and traced the roots of science in the primitive culture. You also read about the emergence
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