[geeks] OT: Q. about Lava Lamps...

[Hatle, Steven J.]

Yup, it's the temperature in the room. 

Lamp heats blob, blob rises, blob cools off, blob sinks.  .  .repeat.

If the ambient temp in the room is high enough, the temp in the bottle is
even enough that the blob kind of gets to a steady state and doesn't do much
of anything.

I've empirically proven this theory by taking my Lava Lamp that did the same
thing, cracking a window during a nice Minnesota -20 F cold spell, and
running the Lava Lamp on the windowsill. Worked like a champ <grin>

Steve