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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
How to make a simple apparatus for distilling water You can make a easy water-distilling apparatus from a flask, and a length of glass or rubber tubing. Fit the flask with a si
Laboratory Safety Codes: BIS has prepared the following three codes (in the form of small books) regarding laboratory safety: i) Code of safety in microbiological laboratories
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
What is Activation offatty acids ? Fatty acids cannot undergo oxidation in the form in which they are normally present in the body. They must be converted into a form which ca
Explain Age Related Changes - Ageing Age related changes are mainly observed at a cellular level. The connective tissues throughout body show an increase in stiffness because o
give examples for one energy transformed to another energy
Explain the Medulla Oblongata The medulla extends from the pons above and is continuous with the spinal cord below as can be seen in Figure. It is about 2.5 cm long shaped like
what is the first layer of the earth
Explain the Lubrication of food Dry food enters the mouth. It is moistened and lubricated by the saliva, before it can be made into a bolus ready for swallowing.
Which equinox marks the moment when fall starts in the Northern Hemisphere? Autumnal Equinox
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