Ventilation can involve either 100 percent fresh airin which outside air enters and leaves the cabin in a single pass or a system in which various fractions of air are recirculated from the aircraft cabin and mixed with fresh air.
Last Monday night, the Chicago Bulls superstar Derrick Rose scooped up a bounce pass, rose 16 miles intheair and executed a faster-than-the-speed-of-light tomahawk dunk over two defenders.
The scent of wild mint hangs intheair as we pass dusky ravines where baboons swing from the fig trees, swerving past brilliant white bones stripped of flesh by vultures.
And, two minutes later, Warrington cashed in with their sixth try when a Briers kick was plucked out of theair by Hicks, who squeezed thepass out of the tackle for King to score inthe corner.