santix writes: This days after Air France Flight 447's incident there has been a lot of speculation regarding how, in the actual days, an airliner managed to disappear without a trace. This brought into topic facts about the equipment carried by aircrafts which would be vital in an emergency situation. This is a review about some of those pieces of equipment.
Economists can certainly disappoint you. One said that the economy would
turn up by the last quarter. Well, I'm down to mine and it hasn't.
-- Robert Orben