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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.
scientific name of hipbone
A lift pump To change the syringe and make a simple lift pump, burn two holes by the piston with a hot wire and fit a thin piece of leather or rubber above them to act as a val
Explain the Control of Salivary Secretion The autonomic control of saliva secretion occurs in two ways, as unconditioned and conditioned reflex. What are these? Let's find out.
Observing pollen grains from different flowers First of all we have to Secure several flowers in which the pollen has formed on the stamens .Shake pollen from each kind of flo
Vitamin E (Tocopherols) Vitamin E is an essential fat-soluble vitamin that functions, at least in part, as a lipid- soluble antioxidant. Presence of vitamin E was first revea
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How has the earth changed since it was formed? Ans) The earth has changed particularly since it was formed. Earth was a ball of rock that was strike and changed by loads of imp
Explain Acute Phase Proteins Following any infection, there is a rise in concentration of several plasma proteins. The best known amongst them are C- reactive proteins (CRP) wh
Semiconductors: By now you have studied more than half of this course. You may have been to the study centre a few times. You might have taken lessons on audio cassette-recor
Examining sand with a magnifying glass Study a small amount of sand with a magnifying glass or under the low power of a microscope if there is single available. The nearly colo
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