Guest Thinkers — October 1, 2009

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Keryl Byrne

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13.8

Flatter Earth: Without plate tectonics, our planet once looked much different

Looking back on our planet's early history offers a new (and less crazy) meaning for the idea of a "flat Earth."

A painting featuring a man brandishing a sword, embodying historical valor and prowess.

The Past

4 of history’s most bizarre epithets

From Æthelred the Unready to Halfdan the Bad Entertainer, these strange epithets colored the legacy of four rather unlucky historical figures.

Charles Munger, a man in glasses, sitting in front of a bookcase filled with puzzles.

Business

Can you solve Charles Munger’s microeconomic puzzles?

According to the legendary investor, the best method is a blueprint for "extreme success.”

Starts With A Bang

Ask Ethan: Is it possible that gravity isn’t quantum?

For generations, physicists have been searching for a quantum theory of gravity. But what if gravity isn't actually quantum at all?

Xiaomi redmi note 3 smartwatch with blood pressure device integration.

Health

Devices that could change how we measure blood pressure

Embedded in a cell phone or in accessories such as rings, bracelets or watches, the novel tools aim to make it easier to manage hypertension. But they must still pass several tests before hitting the clinic.

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Culture & Religion

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