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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 ?
MMSE To assess Mr. X's orientation, language skills, constructional ability, memory, calculation ability, and reasoning, he was administered the Mini-Mental State Examination -
Origin of life on the earth: Man has always wondered how he came into existence, who created him, and why he was created. Curiosity in this connection has been so strong that
THE HEART PUMPS BOODS EVERY MINUTE AND EVERY SECOND OF THE DAY WITHOUT RESTING
why did the horse evolve
greatest refraction of light is caused through
two forces of magnitude 6 N and 4 N act on a 3.2 kg. body. What is the acceleration produced when these force are acting in the same direction? What it the acceleration produced wh
Clarification of oil Crude oil contains a suspension of fine pulp and fibre from the plant material. It also contains smaller quantities of water, resins, colors and bacteria,
Explain Transport of Oxygen By Plasma At a tension of 100 mm Hg, 0.3 ml oxygen is dissolved in every 100 ml of blood. This small volume is negligible as far as the oxygen suppl
Primary source from plants for humans and animals
What causes winds? An uneven heating of the Earth's surface causes winds. On being heated, air becomes lighter and rises up. As a result, a region of low pressure is created. Th
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