Works

Instrumentation (detailed)

Winds and Brass	Flute
Keyboards	Piano
Other instruments	Accordeon

Perpetual motion refers to a situation in which an object moves forever without being driven by an external source of energy. The expression is commonly used to refer to machines that present this fact. Perpetual motion is not possible. Perpetual motion machines are theoretical machines that would produce energy in a way that would violate the established laws of physics. No real perpetual motion machine was yet built, and according to certain fundamental laws in physics they cannot exist. This work was commissioned by the DGARTES - Ministry of Culture of Portugal and Aveiro University.

Documents
	Type (+ sub-type)	Cover/edition title Document title	Authors	Referring to	Publisher	Date
	Audio	7 Pomegranate Seeds Sara Carvalho  Motion Machines (II)		motion machines ii Sara Carvalho	Numérica	2012 2009
	Scores	Sara Carvalho / motion machines II  Motion Machines (II),		motion machines ii Sara Carvalho	Centro de Investigação & Informação da Música Portuguesa	2014 2006