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.
San Francisco garter snakes have similar defense mechanisms to other kinds of snakes. When. threatened, a snake will first try and escape. Depending on the type of snake this could be up. a tree, under a rock, into a burrow or in the case of the San Francisco garter snake, into the. water.