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Floating a needle on water
Thoroughly dry a steel needle. Place it on the tines of a dinner fork and gently smash the surface of the water in a dish with the fork. If you are careful the needle will float as you take the fork away. Look at the water surface closely. Can you see how the surface film seems to curve under the weight of the needle ?
Define the Lymphocytes They are agranulocytes. The nucleus occupies approximately the entire cell. They vary in size from 6- 18 mm diameter; sometimes divide in small and large
Nonionising Radiations : As stated earlier the radiation hazards are not limited to ionising radiations from radioactive materials. There are a number of other radiation sources i
State the process of Liming · Affects the solubility and availability of most of the plant nutrients and raises the level of exchangeable base status of calcium and magnesi
Shut -down Sequences : In some respects, the time when the lab is being shut down is potentially one of the most dangerous periods of the day. For example, at the end of a day's w
Important physico-chemical properties of niacin and niacinamide are as follows: a) Niacin is a white crystalline solid. b) While niacin is sparingly soluble in water, etha
Explain the Menopause The cessation of menstruation is menopause. Natural menopause typically occurs between 45 and 55 years of age. It is caused by changes in concentration of
Explain Myocurdial Ischemia and Infarction Myocardial ischemia (insufficient blood flow) or myocardial infarction (death of heart cells) reduces myocardial contractile force an
what is the concepts of matter#
respiration in different animals
You are the mayor of a beautiful city by the ocean, and your city is connected to the mainland by a set of k bridges. Your city manager tells you that it is necessary to come up wi
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