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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
Chain Reaction: When the atomic nucleus splits, it not only gives off energy, but also throws out two or three more neutrons. 'These new neutrons can, in turn, split two or
Stereo isomerism:- Stereo isomerism occurs when the same compound due to different spatial arrangement of the groups attached to its asymmetric carbon atom exists in m
how is metal tyre fitted on the wheel of bullock cart
Ecosystem: As far as we know, our earth is the only planet where life exists, though scientists su constantly searching for signs of life on other heavenly bodies. You have al
Hormonal system: Most of us are not even aware that another system works constantly, along with the nervous system and the muscles, to direct our bodily functions. The system
Essential nutrients: Our body is a biochemical factory which can make many compounds for its needs. However, there are limits to this, and what our body cannot make has to be
Peripheral nervous system (pns): Except for the brain and the spinal cord, the rest of the network of nerves and neurons is included in tha peripheral nervous system, or
methods of heat transfer
Explain the Diaphragm The diaphragm is a muscular membranous partition separating the abdominal and thoracic cavities and functioning in respiration. It consists of a central
describe the factors which decide the broad area of scientific activity
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