[ QUOTE ]
I don't think so. See
random.org for starters.
[/ QUOTE ]
I'm aware of using noise and radiation to generate random numbers (I've never heard about lava lamps though... That's cool). The reason that they are "random" is because they are very unpredictable. If there was ever a way for us to take into account every single thing that would influence these measurements, we could predict the outcome. In most cases, we just can't do this yet (See: Dr. Heisenberg).