Share 'Why I like lava lamps'

My reply to http://oozinggoo.ning.com/forum/topics/why-do-you-like-lava-lamps? , I think I'll just leave this here ;) The ever-changing interplay of motion and color.  The steady, patient rise to the top, a brief rest then back down for a rest at the bottom.  Light and glowing underneath with a shadow at the top, shading from dark to light, and light to dark.  Blobs meeting and separating, joini…