LONDON (AP) Call them '60s relics or hippy home accessories, lava lamps have been casting their dim but groovy light on interiors for half a century, having hit British shelves 50 years ago on Tuesday ...

The lava lamp: an enigma. A mystery wrapped in a riddle. A virtual paradox. What is the mystical power of this potentate of living room furnishings, and where the hell did it come from? Perhaps it was ...