How Mongol rule helped revive the Silk Road

Mongol rule helped revive the Silk Road

In the 1200s and 1300s, Mongol rule connected huge parts of Eurasia under related governments. This reduced some of the political barriers along land and sea routes and helped long-distance trade and travel grow again along the Silk Road.

A particle cannot be fully entangled with two others at once

Quantum entanglement has a limit sometimes called monogamy. If one particle is as strongly entangled as possible with a second particle, it cannot also be maximally entangled with a third at the same time.

Close enough to a black hole, a tiny push becomes a fall

Around a black hole, there is a closest distance where matter can still stay in a stable circular orbit. Inside that boundary, even a tiny push inward makes an object fall toward the black hole instead of settling into another stable circular orbit.

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How Mongol rule helped revive the Silk Road

Mongol rule helped revive the Silk Road

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