![elastocaloric cooling refrigerator cools by flexing artificial muscles](https://utterbuzz.com/wp-content/uploads/2024/04/elastocaloric-cooling-refrigerator-cools-by-flexing-artificial-muscles-640x427.jpg)
There is room for just one small bottle in the world’s first refrigerator that is cooled with artificial muscles made of nitinol, a nickel-titanium alloy. But the mini-prototype is groundbreaking: it shows that elastocalorics is becoming a viable solution for practical applications. This climate-friendly cooling and heating technology is far more energy-efficient and sustainable than current methods.