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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
Pollution due to Radiations: Hazards of nuclear radiations are extremely serious, because they upset the genetic make up of the living beings. Environmental pollution from
what is atom
Classification of Hazardous Chemicals : The classification of chemical hazards as recommended by the UN Committee of Experts on the Transport of Dangerous goods has been widely ad
Explain Sympathetic - Nerves System Sympathetic, as the word suggests, means to sympathize. The body sympathizes during fight, flight and fright reaction. For example, have you
Softening water with chemicals Try making suds with a half test tube of hard water and a few drops of soap solution. Next boil a same sample and again try to make suds by usin
WHY THE SUN IS CONSIDERED AS A COMPONENT OF THE PHYSICAL ENVIRONMENT
Describe Biosynthesis of Nonessential Amino Acids ? This label 'nonessential' may mislead some people into believing that we don't need it. But, in essence, "non essential" as
describe the factors which decide the broad area of scientific activity
Steroids are of many types . These are given below: a) Sterols : Cholesterol, ergosterol. b) Bile acids : Glycocholic acid, taurocholic acid. c) Hormones : Testoste
Define the Complement system The complement system is a series ofproteins. There are only a handful of proteins in the complement system and they are floating freely in our blo
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