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Length/Distance | Convert from fermi to block [South, West U.S.] |
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Common Length Conversions Metric Length Conversions Unit Definition (fermi) The Fermi was a metric unit of distance formerly used in atomic physics. One Fermi equals 10e-15 meter, or 1 femtometer. The unit was named after Enrico Fermi (1901-1954), the Italian-American physicist who built the first nuclear reactor. Unit Definition (block [South, West U.S.]) The Block is an informal unit of distance popular in the U.S. A block is the average distance between street intersections in the rectangular street grids common in most American cities. The length of a block is about 1/10 mile (160 meters) in USA cities in the South and West.
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