But, starting in the nineteen-thirties, music soundtracks were added to silents, and the films needed to move through the projector at twenty-four frames a second, so that the optical sound reader could handle the music track.
During the twenty-five years after the Second World War, that gap closed considerably.
The album opens with "Pistolas at Twenty Paces, " a fierce, 30-second, rattling guitar strum which mimics the tense soundtracks of the twenty-pace gunfights in old westerns.
An old Chinese proverb says that the best time to plant a tree was twenty-five years ago, but the second best time is now.
The second decade of the twenty-first century will be the decade of the brain.
It was said that the Turkish government had promised to give him a twenty-second house plus ten kilograms of gold if he won again.
Twenty three million shares were traded, making it the second-most active stock on the Nasdaq today.
Twenty second-half minutes had passed before the crowd witnessed a truly threatening attempt at goal.
The world was burning through twenty-three thousand gallons of oil every second.
If he manages to win this year, it is likely to be by less than that, which would make him the first President in a hundred and twenty-four years to win a second term by a smaller margin than in his initial election.
Twenty hours later, the couple arrived from New York in Medina, Islam's second-holiest city after Mecca.
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