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12 февраля 2016 г., 19:12
This is a good thing to... «What If?: Serious Scientific Answers to Absurd Hypothetical Questions»
This is a good thing to keep in mind if you buy a digital scale. If your scale has a precision of more than two decimal places, you need to calibrate it with a test weight—the force of gravity at the scale factory isn’t necessarily the same as the force of gravity at your house.
