Convert fermi to shackle (Britain 1949)
Selected category: length.
Definition and details for fermi:
One fermi (fm) equals to 10-15 meter. This unit of distance was formerly used in atomic physics and was named for Enrico Fermi (1901-1954), the Italian-American physicist who built the first nuclear reactor.
Definition and details for shackle (Britain 1949):
In 1949 the Royal Navy redefined shackle as 90 feet or 27.432 meters.