Most Beautiful Experiment in Physics

An anonymous reader writes "Robert P. Crease has concluded his poll asking what the most beautiful experiment in physics is. The winner was Young's double slit experiment performed using a single electron. Attentive readers will remember that Slashdot had a discussion of Crease's question previously, which Crease mentions in his current article." If you're unfamiliar with the experiment, Google pulls up a bunch of applets and demonstrations.