Penta is a common prefix meaning five. One way to memorize lists of things is to make a set of cards (pieces of cardbord, perhaps 3 x 5 inches or so - that would be about 7 x 12 cm), with (in this...
As many as they want. Keep in mind, a video camera records at a rate of at least a megabyte per second, and it records at a very poor resolution. Therefore, the human brain can recall memories...