What Goes Up Must Come Down

What Goes Up Must Come Down
A protester holds a 'Make Earth Cool Again' sign at the YouthStrike4Climate student march in London on April 12, 2019. Dan Kitwood/Getty Images
The Reader's Turn
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Letter to Editor

What goes up must come down. This is a phrase we seem to understand as kids by simply throwing a ball in the air, but scientifically, we associate this phrase with the Laws of Motion and Gravitation discovered some 300 years ago by Sir Isaac Newton. However, this simple phrase does not just apply to moving objects influenced by gravity.