![Pulley - [pool-ee] - noun. a wheel, with a grooved rim for carrying a line, that turns in a frame or block and serves to change the direction of or to transmit force, as when one end of the line is pulled to raise a weight at the other end.](/files/pulley.png)
Use this tag: #thisismycontraption
The videos below were taken by visitors who used pulleys in their contraptions. If you've taken a video of your contraption & posted it on your blog or any social network use the tag thisismycontraption so we can find it & share it on our site & in our exhibit.
