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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.
Decay of Arab Culture and Science: The association of science with kings, wealthy merchants and nobles which was initially very fruitful, ultimately proved to be the weakness
What is Activation offatty acids ? Fatty acids cannot undergo oxidation in the form in which they are normally present in the body. They must be converted into a form which ca
Shut -down Sequences : In some respects, the time when the lab is being shut down is potentially one of the most dangerous periods of the day. For example, at the end of a day's w
how are the size and mass different from earth ?
What is Topography The location of a soil on a landscape i.e., topography or relief of the land is an important passive factor in soil formation as it can affect the impact of
Explain Maintenance of pH - Functions of Bile Maintenance of pH: Bile neutralises the hydrochloric acid and helps to maintain a suitable pH. This prevents the injurious effects
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Define Co-transport - Secondary Active Transport Determine If the two substances whose transport is coupled, move in similar direction, the phenomenon is known as co-transport
Semiconductor Devices and their Uses: If a junction is formed between a p-type and an n-type'semiconductor, the device called a p- n junction diode acquires a peculiar pppen
#1.During take-off, the wing of the airplane is actually subjected to a cyclic stress range of 150 MPa at a stress ratio of 0.1. Estimate the mean stress intensity factor, and the
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