Kirby wire
Encyclopedia
George Kirby invented the first pendulum
Pendulum
A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position...

-based flying system for stage performers in 1898. Utilizing a quick-release mechanism for safety, the device became known as a "Kirby wire". The Kirby family made other innovations in theatrical flight including the somersault
Somersault
A somersault is an acrobatic exercise in which a person does a full 360° flip, moving the feet over the head. A somersault can be performed either forwards, backwards, or sideways and can be executed in the air or on the ground...

wire and a system that allowed an actor to be flown to the stage above the audience.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK