Why New York City stays so much warmer at night

New York City stays warmer at night

About 9.5°F (5.3°C)

For the average New York City resident, summer nights are about 9.5°F (5.3°C) warmer than they would otherwise be. Streets and buildings absorb heat during the day and release it slowly at night, creating the city’s heat-island effect.

50%

A canal cut Manchester's coal price in half within a year

The Bridgewater Canal opened in 1761 and made coal much cheaper to transport into Manchester. Within one year, the city's coal price had fallen by 50%.

An octopus’s fastest escape can stop its heart

An octopus can escape quickly by forcing water out of its body like a jet. But doing this creates so much pressure that its heart can temporarily stop beating, leaving its body with less and less oxygen.

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Why New York City stays so much warmer at night

New York City stays warmer at night

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