The paradox of the arrow
Friday, January 9, 2009
Bluetooth Motorcycle Helmet
In this paradox, it throws an arrow . At each moment in time 
One way to solve this is to note that, despite the fact that at each instant the arrow is seen as resting at rest is a term relativo.No can judge, noting any instant only, if an object is at rest. Instead, it is necessary to compare it with other adjacent moments. Thus, when compared to other times, the arrow is in a different position than they were before and where you are after. Therefore, the arrow is moving.
Another perspective is to go directly to the definition of velocity, which is the essential idea of \u200b\u200bchange: change of space in a given time. So, by definition, a body that moves, without altering the volume of space occupied at all times, change of space ie, took the same amount, volume, and shape of space, but in a different place, the next moment. The move would be the succession of the different areas occupied by the body (mobile) in the succession of individual moments that make up the amount of time. Thus, if we assume that the velocity concept, ie, movement can be defined rationally, we are simultaneously admitting that the movement, rationally, in theory, exist.
Paradox of Zeno of Elea to support Parmenides doctrine that sensations we get from the world are illusory, and specifically that there is no movement . Rationally, a person can go a long stage, it must first reach half of it before the middle of the half, but before you should still get half of half and half and forever into infinity. Thus, theoretically, a person can go a long stage, though the senses show that it is possible.
extracted from Wikipedia: http://es.wikipedia.org/wiki/Paradojas_de_Zenón
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