Hand spinning on these types of wheels, both hands are free (since the wheel is turned with a treadle, rather than by hand), so the spinner can use one hand to draft the fibres and the other to wet them. Modern powered spinning, originally done by water or steam power but now done by electricity, is vastly faster than hand-spinning. The spinning jenny, a multi-spool spinning wheel invented c. 1764 by James Hargreaves, dramatically reduced the amount of work needed to produce yarn of high consistency, with a single worker able to work eight or more spools at once. At roughly the
Spinning tunnel at various internet sites and in Halloween trade magazines. Another type of spinning tunnel is the stationary LED tunnel. Instead of the tunnel spinning around the bridge, LEDs that are imbedded in the walls of the tube are programmed to turn on and off in sequence, presenting the illusion of movement. While the method of visual presentation is different—light is transmitted directly to the eyes rather than reflected off a liner—the effect is the same. Spinning tunnel Spinning tunnels—which are also known as vortex tunnels or rotating tunnels—are devices used at haunted attractions and amusement parks. When people walk through