Bimetal Creations offers uniquely engineered thermal artwork. Our artwork is powered purely by temperature change - that means no batteries, motors or solar panels! The mechanism behind the motion is thermal expansion. A bimetal strip is formed by fusing two different metals together which, as the temperature changes, expand at different rates. Since the metals are fused together, small changes in temperature cause large deformations. Bimetal Creations leverages this approach to create interesting pieces of artwork that move with temperature change.