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This is an interesting phenomena, as least to me.
In physics, you would logically assume that the quickest way from point A to point B is a straight line, correct? Well, technically, it isn't. If you have a ball on an incline plane, for instance, 45º, and measure the time it takes to roll down the hill, it will be slower than this:
Imagine a wheel, but cut in quarters, like a pizza. Now, take the curve sloping downward, and release the ball from there. It will be quicker than the straight line attempt, due to differences in potential and kinetic energy.
Hopefully, you were able to visualize this.
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Brian Griffin: Ah, if my memory serves me, this is the physics department.
Chris Griffin: That would explain all the gravity.
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