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by definition.
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Then I give you another object, an elephant.
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Here's an elephant.
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I'm telling you, "What's the mass of the elephant?"
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How do you find this mass?
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You got to take the hint he gave.
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I give you a spring and an elephant.
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What should we do? Yes?
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No.
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Remember, when we hang the elephant in outer space,
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nothing is going to happen.
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When you say, "Push the elephant,"