Remove duplicate section

This commit is contained in:
Paul Duguet
2023-11-29 00:40:59 +00:00
committed by GitHub
parent e9667f0565
commit 3bd1e95843

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@@ -21,17 +21,6 @@ addition to our planet, so young that we made our first appearance on
the evening of December~31. It seems that humans managed to arrive just
in time to join the celebration at the end of the year.
The story of sourdough bread begins in ancient oceans. These oceans were the
birthplace of all Earth's life. To better envision the vast history of
our planet lets create a timeline of 1~year. On this scale, January~1 signifies Earth's
formation 4.54~billion years ago. Midnight on December~31 is our present.
Each day represents roughly 12~million years. This technique simplifies the
complexity of time but also renders the extraordinary expanse of our planet's
history into a more graspable frame. We humans are in fact a recent addition
to our planet, so young that we made appearance on the evening of December~31.
It seems that humans managed to arrive just in time to join
the celebration at year's end.
On March~25, the oceans birthed the first single-celled bacteria. In these
waters, another single-celled life form, \emph{archaea}, also thrived. These
organisms inhabit extreme environments, from boiling vents to icy waters.