Pantheon sunlight oculus marks time

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The Pantheon’s sunlight marks time indoors

The Pantheon’s open roof lets sunlight move across its interior, where the light itself marks time rather than a shadow. Rain also enters, but an inclined floor and drains carry it away.

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≈55 million people/year

Medical bills can push patients into poverty

In India, patients often must choose between free public health care with too few resources and expensive private treatment. Medical debt pushes about 55 million people into poverty each year.

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Taiwan was once joined to mainland Asia

People lived on Taiwan 20,000–30,000 years ago, when it was still physically connected to mainland Asia. Rising seas severed that connection about 10,000 years ago.

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