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Scale for Geologic Time
1media/Deep_Time_Senior_Row_thumb.jpg2022-08-02T20:01:29+00:00Selby Hearthb376ef4984698cd7e5faf6c8e8b2692e30809d8111Demonstrating the scale of geologic time along Senior Rowplain2022-08-02T20:01:29+00:00Selby Hearthb376ef4984698cd7e5faf6c8e8b2692e30809d81
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12022-08-02T20:01:48+00:00The Geologic Timescale1The Geologic Timescaleplain2022-08-02T20:01:48+00:00Earth's history begins 4.5 billion years ago. Most fossil fuels formed considerably more recently in Earth's history.
On Bryn Mawr's campus, if Earth formed at the Moon Bench -- and ends when the Sun consumes it, at the end of Senior Row -- then the entirety of human civilization, from the Agricultural Revolution to today -- is the width of a human hair.
