For grinding into flour, wheat is ground between a series of cylinders, beginning with a set of grooved cylinders to break the grain open and ending with a final set of smooth cylinders to reduce the coarse meal to fine flour.
Vesta has several long sets of grooves called fossae, one of which, Divalia Fossa, stretches more than halfway around the asteroid's equator.
Dawn's cameras showed several long sets of grooves called fossae, one of which, Divalia Fossa, stretches more than halfway around the asteroid's equator, as well as several large impact craters, three of which, Marcia, Calpurnia, and Minucia, form a snowmanlike arrangement.
In particular, the surface texture in the modern crab burrows includes abundant comma-shaped marks, sets of grooves oblique to burrow axis, and long segmented grooves.
Rather than parallel sets of grooves, these lanes can often appear as bands of crudely aligned, chevron-shaped features.
Ida's region 2 features several sets of grooves, most of which are 100 m wide or less and up to 4 km long.
A wicket is a structure made from three stakes, called stumps, driven into the ground, with two crosspieces called bails set on grooves between each pair of them (left-center and center-right).
There is more than one set of glacial grooves, and the researchers think at least four ice sheets existed, going back as far as 800,000 years.
In its mouth was a set of high grooved, self-sharpening cheek teeth adapted for grinding plant matter; in its horny beak were several incisor-like teeth used to nip off vegetation.
The effects of tool nose radius and chip flow have been incorporated by defining a set of equivalent groove parameters.
