don, 1 year ago

Are there handguns small enough to fit inside a Petri dish? Or do you just aim the handgun at the Petri dish? Does the handgun need to be loaded? If it must be loaded, will blanks suffice? Does a larger caliber reduce the time needed to aim the handgun at the Petri dish? Is there a specific distance to the dish from which one must aim the handgun? Are rifles, shotguns, and machine guns specifically excluded? Will a sword work? It’s generally made of the same kind of material as a handgun. Is it necessary to stand on a chair while wearing a lab coat while aiming the handgun? Can two hands be used to aim the handgun? Does engaging the handgun’s safety have any effect on the contents of the Petri dish?

XKCD’s not being very helpful.