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http://www.jaffnascience.com/2013/12/thinking-about-motion.html#.UrZSfPvc1dg Aristotle And MotionThin about dropping a rock while you are walking. What do you expert to happen? You expect the rock to fall and hit the ground.But why does this happen? Is some strange force at work?

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http://www.jaffnascience.com/2013/12/problems-with-aristotles-ideas.html#.UrZSHvvc1dg Aristitle's ideas were accepted as the truth for hundreds of years. At a quick glance, his ideas seem to be common sense. For example, a rock dropped from an outstretched hand does fall in a straight line.it seems logical that a heavy stone should fall faster than a much lighter block of wood. Howev...