Communities of nomadic people move from place to place, rather than settling down in one location. Many cultures have been traditionally nomadic, but nomadic behaviour is increasingly rare in industrialised countries.
... is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang.
External links
www.gyrotwister.de ...