Learn to make light, but never LEDs. Have you ever stopped to look at a neon sign? I mean really look at one—long enough to notice that it is made of glass tubes intricately hand bent and folded, and ...

From shallow reefs to pitch-black depths, the ocean is alive with sparkling lights. Fish, squid, clams and plankton have found a wide range of ways to glow, shimmer and flash, lighting up the dark ...