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a hill over which the wagon is pushed. - novanet

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Q: Which analogy can best be likened to the activation energy of a chemical reaction?
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What is the Vitreous Jelly?

The "Vitreous Jelly" or what you may mean, the vitreous humor, is clear gel (which I assume can be likened to glass), that is between the retina and lens of the human eye.


What was Rutherford's contribution to the atomic theory?

Rutherford devised an experiment where alpha particles were fired at a very thin sheet of gold leaf. His detectors were at first place behind the foil and a large number of protons were detected as flashes of light on the detector. Slowly they were brought to the side of the foil and still his staff were detecting protons. He then placed the detector beside the proton 'gun' and very occasionally detected a particle. His hunch had paid off. He likened this event as 'firing a 7 inch shell at a piece of tissue paper and it coming straight back'. What he had found was the Nucleus of an atom of gold. The positively charged proton had met with the positively charged nucleus of the gold atom and it had been rebounded due to like charges repelling . Looking at his data he reasoned that the Nucleus was surrounded by a relatively large void before the electron cloud was encountered. He likened the relative size of the atomic nucleus to the distance to the electrons as the 'fly in the cathedral'. Neils Bohr went on to further refine this model.


What was Bohrs contribution to the atom?

Bohr's atomic model introduced some mechanical aspects to the atomic model, and, more importantly, it provided a theoretical frame for Rydberg's formula, which had been observed only empirically.


Why is Bengaluru called the Silicon Valley of India?

Bangalore has been the IT capital of India since the late 1980s. In many ways, the culture, climate and progressive nature of entrepreneurs of Bangalore are conducive to innovative business, much like the San Francisco Bay Area, specifically Santa Clara and San Jose. This region of California is known as Silcon Valley owing to the predominance of semiconductor manufacturers, which paved the way to the high-tech and IT dominance of the area. Bangalore has been likened to this region and is hence known as the Silicon Valley of India. I also suspect it has something to do with the geography - Bangalore is actually on a plateau, but is also somewhat nestled between some mountainous regions, lending veracity to the 'Valley' part of its moniker.


How can you measure the density of a liquid using density bottle?

A density bottle can be likened to a graduated cylinder because both of them are used measure the density of liquids. However, the density bottle is more accurate because it has a stopper or a lid in a fixed position. Extra amount of liquid can pass through the stopper.