Changes

==Black smoke==

==Black smoke==

Black smoke was seen coming out of WTC #7 and other places on 9/11. "Truthers" say black smoke means that a fire is starved of oxygen, and therefore can easily be put out. This is not true, although it was in the past, because we now use petroleum in many products, which causes black smoke yet burns very hot.

Black smoke was seen coming out of WTC #7 and other places on 9/11. "Truthers" say black smoke means that a fire is starved of oxygen, and therefore can easily be put out. This is not true, although it was in the past, because we now use petroleum in many products, which causes black smoke yet burns very hot.  Also, grey smoke is sent out by the Vatican when a Pope is elected.