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Until the nineteenth century, solid blocks of tea were used as money in       When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!       A Boeing 747 airliner holds 57,285 gallons of fuel!       A lightning bolt generates temperatures five times hotter than those found at the sun’s surface!       A violin contains about 70 separate pieces of wood!       It is estimated that 4 million “junk” telephone calls, phone solicitations by persons or programmed machine are made every day in the       |
