Have you ever heard about lava lamps? Do you like it? Yes of course, I like lava lamps. I love the “lava”, the slow chaotic rise and fall of randomly-shaped blobs of wax. Actually, lava lamps are not common lamps. I mean it’s not created for illumination, like any other lamps, but lava lamps are made for decoration lamps. It’s a tapered glass bottle containing water, wax and a certain materials (I don’t know). And than, what else? Here is according Wikipedia. A metallic wire coil in the base of the bottle furthers heat convection and suspends the falling blobs of wax. Can you imagine...