How does it work?
Our exhibit uses liquid crystal technology, a material which expands or contracts based on temperature. Thermochromic materials change the wavelength of light they reflect as their temperature changes. This means that different wavelengths of visible light are being reflected into our eyes, ranging from violet to red. This light is called the visible spectrum. Our eyes are designed to detect reflected light within the visible spectrum. In the spectrum are all the colours that we can see, and what colour we see depends on which wavelengths of light are being reflected by an object.