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.
1 Some snakes can hold their breath underwater for up to 30 minutes. 2  In 1992 a snake fatality occurred when a person was trying to kill a snake, perhaps believing it could not effectively bite him underwater. 3  It could. Snakes can and do come out at night. 2  On very hot days, many snakes will avoid the heat and emerge in the evening. 3  Some snakes can hold their breath underwater for up to 30 minutes. 4  In 1992 a snake fatality occurred when a person was trying to kill a snake, perhaps believing it could not effectively bite him underwater.