Ralph Bagnold's work on the formation of these entities, though written in 1941, is still mostly accurate.
Ralph Bagnold's work on the formation of these entities, though written in 1941, is still mostly accurate. Barchans (BAR-chanz) are formed where there is little of their namesake substance, which is made up of particles of diameter between 0.1 and 1.6 millimeters. The most common type of these objects is the crescentic type, which are wider than they are long. Star ones are found in the Namib and Sahara Deserts. For 10 points, name these massive hills built by wind-blown sand.
Ralph Bagnold's work on the formation of these entities, though written in 1941, is still mostly accurate.
sand {dunes}