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Making a simple reflecting telescope
A simple reflecting telescope can be made from a concave mirror obtained from a shaving mirror. The mirror is arranged wooden box of suitable size in such a way that it can be tilted at dissimilar angles. An upright made of wood is attached to the box so that its angle may also be varied. Two short focus lenses are fixed in corks which are then placed in a short length of mailing tube as an eye-piece. Then join this eye- piece attached to the wood upright exactly at the focal
The effect of petrol on surface tension Being sure that the plate is has to be clean. It is wise to rinse the plate in cold water for a time before filling it. Instead of soap,
Nutrient groups and their functions: We should know that our body is made up of different chemical substances which are related to the food we take. Scientists have determine
tissue experiment conclusion
Explain Basophils - Types of White Blood Cells They form only 0.05% of the leukocytes. They release histamine that plays a major role in inflammatory reactions. Basophils also
Personal sensitivity : There are other dangers from substances which are not so common. e.g. mutagens , but one aspect we have not mentioned involves you. The eyes, lungs and skin
Explain Development of Agranulocytes Agranulocytes, we know, are the monocytes and lymphocytes. Agranulocytes develop in the bone marrow and thymus. They start as stem cells.
Acute and Chronic Effects : The effects of accidents due to chemicals are severe and immediate on the human body. These effects are called acute effects and can be traced without
What is the difference among the geoid and the surface of the earth? The geoid is an visualize surface that equal with the average (mean) sea level around the world. Thus, i
hardness of substances?
Introduction : In any laboratory dealing with biological experiments, hazards can occur mainly due to chemicals and biological materials. In the previous exercise you have done th
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