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How to Weigh a Million £ Without a Scale (Or Any Pounds)

By Adrian Covert on at

In physics, approximations are important. Developing a predictive model for how something will move/behave/react based on information from another object or scenario can provide a helpful frame of reference. To illustrate this point, the always excellent YouTube series MinutePhysics shows us how to weigh a million dollar bills without having a scale; a single bill, or the knowledge of how much a dollar weighs.