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Nuclear Fission:
Splitting the Atom You know that atoms are made up of a nucleus and electrons moving around the nucleus, and the nucleus is made up of protons and neutrons. The principal actor in the fission drama is the uranium atom. The nucleus of the Uranium 238 atom has 92 protons and 146 neutrons. About one atom in 140 atoms of uranium has 143 neutrons in its nucleus. lt is called Uranium 235. It is the Uranium 235 that is mostly used to provide fuel for nuclear furneces. Before the Second World War, two German scientists discovered that if neutrons were shot at the nuclei of Uranium 235, the nuclei split into two and produced other neutrons to repeat the process. This is called nuclear fission.
Explain Immune System The animals and the human beings are forced to encounter many dangerous microbe in their day-to-day life, through water, air and food. Inside our body the
Notes
Another balloon experiment Stretch a rubber balloon over the neck of a little bottle. Place it in the receiver jar and delete some of the air with the pump. What happens? How d
Land Use Planning and Management: People see land everywhere and get an impression that plenty of it is available. Besides, they do not care how it is being used, unless o
Define the visual area of the Cerebrum The visual area lies behind the parieto-occipital sulcus and includes greater part of occipital lobes. Optic nerve passes from eyes to th
Explain the Urinary Bladder The urinary bladder is a sac, which acts as a reservoir for urine. You would realize that the size and position of the urinary bladder varies depend
Why does a glacier move? It moves due to the huge pressure of the ice and snow lowers the freezing point of its lower layers, causing by to melt.
QUESTION 1 (a) How did psychology emerge as a separate scientific field? (b) Elaborate on any two schools of Psychology QUESTION 2 Elaborate on the correlational met
Define the Mechanism of Hormone Action Hormones affect cell function either by activating cyclic AMP (Adenosine monophosphate) mechanism or by activating genes. You may recall
Objectives : After completing this exercise you should be able to check the stock register, 1. verify the physical presence of articles present in the lab as per the stock regi
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