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Elevators have transformed our cities and our lives, but how safe are they?

Trapped in an Elevator

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They've transformed our cities and our lives, but how safe are they?

Trapped in an Elevator Preview

Across North America, elevators move 325 million passengers every day. NOVA reveals the secret life of these ubiquitous machines. 11/2/10

Airs Tuesday, November 2, 2010 at 8:00-9:00 p.m. ET/PT. Check your local listings.

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Trapped in an Elevator

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