Advertisement. Airbus, which is under increasing pressure to prove the viability of its A380 production rates, yesterday conceded that it still needs to fill a âsingle-digit numberâ of production slots for the type in 2015.dvertisement. Airbus, which is under increasing pressure to prove the viability of its A380 production rates, yesterday conceded that it still needs to fill a âsingle-digit numberâ of production slots for the type in 2015.
Where did the phrase 'once in a blue moon' come from? A folklorist traces the convoluted evolution of the phrase, while discussing why it adopted the many meanings it has throughout history.
The modern definition simply asserts that it's when two full moons occur in the same calendar month. The original definition, however, is a little more complicated. About every 2.7 years, there are four full moons in a season instead of three - the third moon, not the fourth, is dubbed the blue moon. The rarity of the occasion inspired the old saying once in a blue moon.. Incidentally, neither definition involves the moon's color.