Video: Arithmetic Logic Unit (ALU): Definition, Design & Function. An arithmetic logic unit (ALU) represents the fundamental building block of the central processing unit of a computer. An ALU is a digital circuit used to perform arithmetic and logic operations.
Snake Crawls up a Wall. 02.10.2008 - Many people ask me about the climbing capability of snakes. In particular, people want to know if snakes can get up into their attic. The answer is that yes, some species of snake are excellent climbers, and can climb walls.
This is like torture for a box turtle, so make sure they canât see anything beyond the walls of their home. If the enclosure is outside, make sure the walls go a good foot underground. Box turtles are skilled diggers and may pull a daring escape if your walls arenât deep enough.