Economic history of the United Kingdom manufactured goods, particularly textiles. The invention of the flying shuttle by John Kay enabled wider cloth to be woven faster, but also created a demand for yarn that could not be fulfilled. Thus, the major technological advances associated with the industrial revolution were concerned with spinning. James Hargreaves created the Spinning Jenny, a device that could perform the work of a number of spinning wheels. However, while this invention could be operated by hand, the water frame, invented by Richard Arkwright, could be powered by a water wheel. Indeed, Arkwright is credited with the widespread introduction of the factory system
Spinning Dancer Spinning Dancer The Spinning Dancer, also known as the silhouette illusion, is a kinetic, bistable optical illusion resembling a pirouetting female dancer. The illusion, created in 2003 by web designer Nobuyuki Kayahara, involves the apparent direction of motion of the figure. Some observers initially see the figure as spinning clockwise (viewed from above) and some counterclockwise. Additionally, some may see the figure suddenly spin in the opposite direction. The illusion derives from the lack of visual cues for depth. For instance, as the dancer's arms move from viewer's left to right, it is possible to view her arms passing between