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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.
.How did the geocentric theory change over time as increased scientific knowledge led to increased consensus within the scientific community?.
What causes winds? An uneven heating of the Earth's surface causes winds. On being heated, air becomes lighter and rises up. As a result, a region of low pressure is created. Th
factors which decide the broad area of scientic activity
Fire Buckets : All labs should be equipped with a fire bucket. The buckets are not used only for carrying water to a fire. This is one of their uses. The other way a fire bucket i
#question how can i easily remember the order of draw and the colors of the tubes and their purpose? ..
Define the parietal area of the Cerebrum The parietal area, as you can see in the Figure, lies behind the post central area and includes greater part of parietal lobes of the c
Define the Sympathetic Nervous System The sympathetic component of the autonomic nervous system is concerned with in- creasing the level of arousal and energy expenditure - pri
what is the structure of the ecosystem
The Need for Reporting Accidents : All accidents (no matter how trivial) and, dangerous near misses should be recorded. The recording of accidents ensures that all injuries are tr
Lab hygiene : The need for continuous attention to hygiene in any type of laboratory cannot be overemphasised. Any spillage of chemicals, battery acid, blood, plasma, serum, etc.
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