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25000 Meters to feet and inches - Calculatio
JioNews - Daredevil David Blaine performed his latest stunt on Wednesday, ascending nearly 25,000 feet (7,600 meters) into the Arizona sky while hanging from a cluster of jumbo-sized balloons before parachuting safely
Low-level eruptive activity occurs in volcanoes across Alaska
Flight level - Wikipedia
Search for Flight 370 Enters Daunting New Phase - WSJ