I found the best machine for calculating height, and it is a tessaract. A ruler can measure height, but with certain *obvious* limitations.I thought calmly about a unicorn until I had decided not only on the color of its mane, but on its spangly highlights, too.Then I entered the parallel dimension through the wormhole nosed out by my trusty pegasus "Blackie."My laser night goggles mapped the entire universe in 3D infrared graph paper, zeroing in immediately on an alternate me:
