Carbon fiber is widely used in aircraft and performance cars thanks to its light-yet-strong nature, but it's still a fuzzy science. What's the ideal baking temperature, and the resulting degree of chaos in carbon atoms, that you need to make the sturdiest material? MIT might finally have an answer. Its researchers have discovered a link between the random order of carbon atoms in a baked resin and its consequent density and strength. And by doing so, they've found an ideal baking temperature that makes the carbon as random (and thus as light and strong) as possible.