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How to make a simple vacuum pump
Secure a bicycle or automobile hand pump. Open the pump and delete the piston. Un- screws the bolt that holds the leather washers. Reverse the washers by turning them over. Change the washers on the piston and insert in the pump cylinder. A pump of this sort will serve to do a lot of simple vacuum experiments
Classification of Vitamins Vitamins widely vary from each other from tlie structural point of view. Conventionally, they are classified on the basis of their so
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Uranus Uranus (Fig.) appears as a green disc with vague markings, even through the largest telescopes. Its colour is produced by the large amounts of methane and ammonia clo
Factors decide the broad area of scientific activity
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
Objectives After completing this exercise you should be able to: 1. Locate the source and control points of gas/electricity/water supply in the lab you have visited, 2. D
What is the earth crust made of? Ans) The overall composition of the Earth crust is as follows: Silicon 27.7% Oxygen 46.6% Iron 5.0% Aluminum 8.1% All other elem
Explain Ketones The ketone bodies accumulate in the blood in impaired glucose metabolism as in starvation and diabetes mellitus. The high levels of ketone bodies are excreted i
what are the kinds of animals?
Freezing by Contact with a Cooled Solid-Plate Freezing In this method, the product is sandwiched between metal plates and pressure is usually applied for good contact. Plate
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