Blush is a radiator by Icelandic designer Thorunn Arnadottir that is covered in thermochromatic paint and both looks like and simulates capillaries.
Magic Lamborghini Paint Job Transforms In A Splash
How to Make Colour Changing Paint (Instructables: exploring - featured)
Paint that changes color at different temperatures is known as thermochromic paint. The color change occurs as the compound structure of pigment molecules within the paint react.
Heat sensitive color changing slime Make this awesome color changing slime that changes color with temperature! Thermochromic slime makes STEM learning fun.