In Ancient Greek, one of the final two or three syllables of a word carries an accent. Each syllable may contain one or two vocalic morae, but only one can be accented; accented morae are pronounced at a higher pitch.
US military to launch fastest-ever plane. By the time you finish reading this sentence, the Falcon HTV-2, the fastest plane ever built, could have flown 18 miles. It would get from London to Sydney in less than an hour, while withstanding temperatures of almost 2,000C, hotter than the melting point of steel.
Although the official record for fastest piston-engined aeroplane in level flight is held by a Grumman F8F Bearcat, the Rare Bear, with a speed of 528.31 mph (850.24 km/h), the unofficial record for fastest piston-engined aeroplane in level flight is a held by a British Hawker Sea Fury at 547 mph (880 km/h).