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INTRODUCTION : You read about the fire hazards, general precautions and remedial measures in case of an outbreak of fire in the previous unit. In this unit you will learn about two other common hazards. These are the hazards because of radiation and chemical substances i.e., substances hazardous to health. The radiation hazard is generally common in a physics laboratory; however, it is equally important for a biology or chemistry technician who has to handle radioactive isotopes, used as tracers. On the other hand a chemical hazard is more likely in chemistry or a biology laboratory; yet it cannot be ignored in a physics laboratory. Therefore proper attention should be given by all the staff working in a laboratory to these hazards. In the next unit you will study about the hazards in a biology laboratory.
Science and Technology during the Renaissance: This phase in the history of science was one of description and criticism. First came the exploration of ancient knowledge, mainly o
Explain the Medulla Oblongata The medulla extends from the pons above and is continuous with the spinal cord below as can be seen in Figure. It is about 2.5 cm long shaped like
Mouth-to-Mouth Artificial Respiration : If a casualty does not start breathing by the above process, artificial respiration must be started immediately to get a supply of air into
INTRODUCTION : In this unit, we shall discuss the need and the method for reporting an accident. We shall explain the choice of locating the first aid box and state its contents.
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Cosmic Distances: If we asked you what the distance between Delhi and Kanyakumari is, you would say that it is roughly 3000 km. Another way of answering the question would
how is the soil colloidal material look like when ion and cation exchange capacity of the soil?
State of Communication in the Past: Those of us who have experience of life in remote villages, far away from urban centres, are familiar with such features as poor roads whi
how i can get the nams of all the body of the human
what the different types of volcanoes are?
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