The following figure illustrates the knitting action of a V-bed hand flat machine and the another figure shows the underside of the cam carriage and the cams forming the tracks that guide the needle butts through the knitting system.
Milankovitch cycles are the collective effect of changes in the Earth 's movements upon its climate, named after Serbian civil engineer and mathematician Milutin MilankoviÄ.
Moon Phases and Cycles. Metonic Cycle. Meton of Athens (ca. 440 BC) noticed that 235 lunar months made up almost exactly 19 solar years. The near commensurability of the two periods follows from the fact that 235/19 is the 6th convergent of the ratio of the lunar month and solar year periods (365.2425/29.53059). This 19-year lunar cycle became known as the Metonic cycle, and was the basis for the Greek calendar until the Julian calendar was introduced in 46 BC.