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Making a 'gusher' with compressed air
Secure a large narrow-necked bottle like as is used for soda water. Place a single-hole stopper in the bottle. By the stopper put a 10- cm length of glass tube which has been drawn to a jet on the outside end. With a short length of rubber tube join a length of glass tube that will extend nearly to the bottom of the bottle. Fill the bottle about half full of water. Insert the stopper firmly and hold it in with your fingers. Next blow hard into the bottle; and when you free the pressure, point the bottle away from you. What happens?
factors affecting nitrogen balance
Explain Inhibitory Factors Haemopoiesis may be inhibited by a decrease in the live1 of stimulatory growth factors. Generally there is a competition. No particular substance ca
Explain the Creatinine Clearance Test It determines how efficiently the kidneys are clearing creatinine from the blood and serves as an estimate of kidney function. It compare
lmmunoglobulin G - classification of antibodies Major defence against bacteria and their toxins. It is the major Ig - 80% in the body, can cross the capillary wall very easily
Control of soil erosion: The most significant measures of erosion control include (i) growth of grasses, shrubs and trees on soils and (ii) construction of a drainage system w
What is osmosis? What are Isotonic, Hyperonic and Hypotonic Sloutions? What are the pracautions for the experiment of osmosis?
Define Nutrition To common man, the word 'Nutrition' implies food. Food is essential for growth and development. Physiology becomes an interlink between nutrition and healthy h
What is the general statement regarding the temperature of water in oceanic depths? Commonly, the relation is this - the further from the surface the colder the water. This
What time period can carbon-14 dates have? Carbon 14 has a half-life of 5,730 years, and thus it can be used to date very precisely a large majority of things, particularly woo
Objectives After performing the activities under this exercise you should be able to: 1. Calculate the current drawn by a given instrument/equipment /appliance and suggest a
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