Demonstrations from the Mini Materials Demo Kit

Touch the candy ball to the side of the cup and start to pull the fiber. [...] Notice that the fibers are fairly flexible when they are first pulled, but will harden the longer they are exposed to the air due to the small diameter of the fiber and the temperature difference between the air and the molten candy. [...] The difference in the two states is the arrange- ment of the atoms in the wire. [...] Place the LED lens tightly against the end of the cable where the fibers are flush with the black protective coating. [...] In a hundred thousandth of a second, the electron returns to the ground state by the emission of a photon of a longer wavelength.