Making a mood ring toilet seat using thermochromic liquid crystal ink

Well-known YouTube makers, Evan and Katelyn, take on their weirdest project yet. They use some thermochromic liquid crystal ink left-over from another project to turn a toilet seat into a butt-sized mood ring.

Image: YouTube screengrab. Read the rest

Gorgeous seven-segment display that depicts numbers by heating and cooling

Thermochromic materials change color as they heat or cool. You know the mood ring? Like that! Read the rest