Spinning mule Rhode Island. Development over the next century and a half led to an automatic mule and to finer and stronger yarn. The ring frame, originating in New England in the 1820s, was little used in Lancashire until the 1890s. It required more energy and could not produce the finest counts. Samuel Crompton invented the spinning mule in 1779, so called because it is a hybrid of Arkwright's water frame and James Hargreaves' spinning jenny in the same way that mule is the product of crossbreeding a female horse with a male donkey (a female donkey is called a "jenny"). The
Spinning pinwheel Spinning pinwheel The spinning pinwheel is a variation of the mouse pointer arrow, used in Apple's macOS to indicate that an application is busy. Officially, the "macOS Human Interface Guidelines" refers to it as the spinning wait cursor, but it is also known by other names, including the spinning beach ball, the spinning wheel of death, and the spinning pizza of death (SPOD). A wristwatch was the first wait cursor in early versions of the classic Mac OS. Apple's HyperCard first popularized animated cursors, including a black-and-white spinning quartered circle resembling a beach ball. The beach-ball cursor was also adopted