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From the site:
For motorcycles, it would be cool if someone could develope a replacement for chrome plating for the engine and the exhaust that, at or below 175 degrees Fahrenheit starts to glow red, much the same way metals such as iron or steel glow at much higher temperatures. This new material would glow brighter as is got hotter. It would serve three purposes: 1. When glowing one would know it had a potential to burn the skin.