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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.
To show how water rises by capillarity Colour some water in a shallow dish with ink and touch a blotter to the water surface. Observe how the water increases in the blotter.
Explain the Complement System To remove a microorganism by phagocytosis requires phagocytes at the right place in the right time. The organism should adhere to the phagocyte. M
What is a nucleus
Explain the Circumvallate papillae: These are the largest of the papillae, about 8 to 12 in number. These are arranged in a V-shape.
what is science
Explain the Rectum and Anal Canal Rectum: This is a slightly dilated part of the colon. It leads from the pelvic colon. Anal canal: This is a short canal which leads fro
Define Primary Transport Primary transport employes energy directly, light or chemical energy is transformed to electrochemical energy as electrochemical potential of the subst
Explain concept of Salting out Salting out: Proteins in aqueous medium can be precipitated by qdding, trichloroacetic acid (TCA) or perchloric acid (PCA). Salts of hea
A lamp chimney lift pump Use a straight-sided lamp chimney as a pump cylinder. Fit a two-hole stopper into the chimney for a piston. If the stopper is a little small wrap some
What is asthenospher? Ans) The asthenosphere is a layer of the earth crust.
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