A pulley is attached to a hook about ten feet above the floor. The subject is able to raise his or her body off the floor by exerting a force equal to one-half of his or her weight. Use gloves to protect hands from rope burn.

Noose must be looped below arms. Standing on rope loop can cause you to flip, leading to possible head injury. DO NOT STAND ON ROPE!

Note that due to height limitations, this demonstration is only available in rooms 1410 and 1412.

Note that this demonstration requires additional setup time of at least 24 hours. Please contact the facility to make arrangements for this demonstration.

Rotation of the large weighted propeller by a person sitting in the rotating chair causes rotation of the chair in the direction opposite to the direction the propeller is rotated, as demonstrated very effectively by Gwen in the photographs above.