科普英语翻译
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from the apple to the universal law of gravitation
as in all such legends,this is almost certainly not true in its details,but the story contains elements of what actually happened
probably the more correct wersion of the story is that newton,upon observing an apple fall from a tree,began to think along the following lines
the apple is accelerated,since its velocity changes from zero as it is hanging on the tree and moves toward the ground.