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.
Want to know the fastest plane in the world? First, letâs take a look at the other contenders: The F-1117 Nighthawk is a single-seat, twin-engine stealth attack aircraft that was developed by Lockheedâs secretive Skunk Works division. The plane made its maiden flight in 1981 and achieved initial operating status in 1983, but was operated in secrecy until 1988.