This page allows you to perform various kinds of "runs" to determine
if you are able to retroactively influence the output of a
hardware random number generator based on
radioactive decay. Your browser must support
HTML5 in order to run this experiment. If you're using an older
browser which supports Java™ applets, try the
Java page for this experiment.
If the pendulum appears, but does not swing smoothly from side
to side (for example, it stops and starts apparently at random,
or the speed with which it's swinging abruptly changes), other tasks
running on your computer may be using resources needed to do
smooth animation. If the irregular motion bothers you, try
closing other applications and see if the motion then becomes
smooth.
Bell curve
Clock face