You’ve likely heard of Nitinol wire before, but we suspect the common base knowledge doesn’t go much beyond repeating that it’s a shape-memory alloy. [Bill Hammack], the Engineer Guy, takes us on a ...

Description: A heat engine consisting of a loop of Nitinol wire running on two pulleys. When the smaller pulley is dipped into a cup of hot water the loop of wire rotates. We have a model of a loop ...