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Lifting the water surface
Bend the pointed end of a pin or use a piece of fine wire to make a hook. File the point of the hook unless it is very sharp. Put your eye on a level with the surface of the water in a drinking glass. Put the hook under the surface of the water and gently increase the point to the surface. If you are cautious the point will not penetrate the surface film but will lift it slightly upwards.
Science and Technology during the Renaissance: This phase in the history of science was one of description and criticism. First came the exploration of ancient knowledge, mainly o
Miller's Experiment The above theory could be tested by recreating in the laboratory on a small scale, the conditions which must have existed when life originated on the
A 57 year olf female presented to her GP with a history of fatigue, weight loss and incresingly severe back pain. on examination she appeared pale with no signs of hepatomegaly or
Explain the Process of Hearing The ears, as we all know, are sense organs for hearing. The ear consists of an external ear, a middle ear and an internal ear. It houses receptor
Define the Nature of Sound This section is a recapitulation of what you have learnt in school. You would recall that sound waves consist of the longitudinal waves of alternate
Social and economic impact of modern communication technology: Quite obviously a society which will utilise advanced communication technology in the ways mentioned above, woul
Germinating pollen grains Apparatus Used-Make a strong sugar solution and place it in a shallow dish like a saucer or Circular Plate. Shake pollen from several Different kinds
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I really need help on cells
The Maximum theoretical limit of channel is governed by Nyquist theorem, which says Bth = 2 x freq in hertz x log2L ( where L = number of level) Thus we have in this case Bth= 2x60
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