These three studies explore the potential of shape memory alloy springs (SMAs) that respond to changes in temperature. The SMAs are a critical component in each mechanism, where they are designed to generate continuous kinetic cycles. In two of these studies, the electrical resistance of the SMAs generates heat in the alloy, causing the smart material to contract.

The SMAs work with/against each other to sustain continuous movement and keep the entire mechanism moving. In the third composition, heat from a flame causes the springs to contract, displacing the triangle’s center of mass.