『How many generations have ever lived? Science Short』のカバーアート

How many generations have ever lived? Science Short

How many generations have ever lived? Science Short

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概要

 How many generations have lived — and how do we even count that? In this Squiz Kids Science Short, Christie explains how scientists use generations to measure time, why humans have racked up around 12,000 of them, and how today’s population explosion makes our moment in history a very unusual one. A quick, mind-bending look at humanity’s place in deep time.
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