mercredi 13 mars 2013

A puff of smoke at the Vatican has signaled the election of a new pope. What mak...

A puff of smoke at the Vatican has signaled the election of a new pope. What makes the smoke white?


Smoke at the Vatican
news.nationalgeographic.com
A pyrotechnics expert speculates on how the Vatican makes the kind of white smoke that emerged Wednesday from the Sistine Chapel.

Source: National Geographic's Facebook Wall

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