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Lava lamps are very nice things to have. I love to sit and watch lava lamps.
One thing that could make them even better is to impregnate the wax with a thermochromatic dye that changes colors at the same temperature that the wax changes bouyancy from float to sink (and vice versa). And maybe the liquid
inside. Then we'd have a multi colored shifting lava lamp.
You could watch the thermal currents, not just the wax.
[robinism, Jan 15 2005]
A lava lamp wherein one of the substances may be phosphorescent or be thermochromic [xaviergisz, May 31 2005]
||hmmm not quite thermoelectric but not a bad idea...
||Cool - now get back to coding!
||Essentially the same as a previous idea on Halfbakery. (see link). Redundant...?
||just saw the autoboner... 13:34 GMT, 15/01/05