Nitinol: The Shape Memory Effect and Superelasticity Explained [Science Video]

This this video, Bill “The Engineer Guy” demonstrates the temperature-dependent shape memory of nitinol metal. He explains how “twinning” in the crystal structure of nitinol produces the memory effect. He shows a nitinol-based engine that is powered by temperature differences. He closes the video with a description of superelasticity, a phenomenon related to the memory […]

Illusion: This Video Tricks You in Seeing Something That’s Not There [Video]

The Rabbit Illusion is a time-travelling illusion that makes you retroactively see something that is not there. Watch above! Caltech researchers have developed these two new illusions that reveal how the senses can influence each other—in particular, how sound can give rise to visual illusions. These illusions occur so quickly that they illustrate a phenomenon […]