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Analysis Of Galileo's Dialogues

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In Galileo’s Dialogues Concerning Two New Sciences, the discussion is broken up into multiple days. In the First Day, Galileo, through the dialogue between Simplicio, Sagredo, and Salviati, discusses and exemplifies various topics. They begin by considering scale in mechanics, and then later, infinity, void, and end the day by discussing pendulums and the vibrations of strings. These topics are ultimately main ideas of the text, and are explored through dialogue and proposed practicals. However, the form of the text itself is of as much interest as the subjects, namely the purposes of the dialogue format, the three characters, and whether the form lends or detracts from the general understanding of the text. As a whole, the First Day …show more content…

Ultimately, a weight is to be attached to the wire, so that is pulls down in an attempt to pull the top of the wooden cylinder within the glass cylinder away from the water within it (pgs. 14-15). He concludes that, if the wooden cylinder does not separate from the water, it is because of the force of nature rejecting the creation of a vacuum, and if the glass breaks after adding more weight, then the vacuum only accounts for a part of the resistance. Sagredo claims to reach clarity after the explanation of this experiment, and then compares it to how water will only move up a cylinder to a height of eighteen cubits before it will travel no more. However, it is difficult to see how this experiment explains how a nail of greater size can have a greater strength than that of a smaller size. It is required to make the logical jump that the individual pieces that make up an iron nail act with each other in the same way that water does. As water does not want to separate from itself in the space of the cylinder as described in the above experiment, a nail does not want to separate from itself, even if there is a great weight pulling on it. In the experiment, if too great a weight was applied, the glass broke, in the case of the nail, one can only assume that the equivalent of the glass shattering would perhaps be the nail bending, rather than snapping

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