That joke would be an absolute killer at Physics conferences ... you see, 'pics' normally employ waves from the optical band of the electromagnetic spectrum, which of course would be totally useless in tracking alleged particles moving faster than the speed of light. Excuse me for drawing a road map of the joke, but physicists do that. They have OCD when it comes to explaining things. MCB in a straight MM Hardwood. Rekamepip is right ... these pipes are tasty. Not to eat of course, but to smoke.