How Far Would You Have to Tunnel Underground to Lose 20 Pounds?

In What If? 2, Randall Munroe explains that evading gravity can reduce your mass—but let’s do the math to see how far you have to go.

How Far Would You Have to Tunnel Underground to Lose 20 Pounds?
In What If? 2, Randall Munroe explains that evading gravity can reduce your mass—but let’s do the math to see how far you have to go.
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