21.   In place of ski poles, the machine uses a rope-and-pulley arrangement.

22.   Indeed, much of the project will involve the purchase and installation of the complex machines used to make microchips.

23.   Just about all late-model machines use single in-line memory modules, or SIMMs.

24.   Microworkz spokeswoman Luanne Brown denied published reports that the machine will use a hybrid of Linux and the BeOS.

25.   One of three primary products the company sells, its stereolithograph machine essentially uses laser beams to sculpt plastic.

26.   Technology has passed it by, and many machines use it.

27.   The company also is supplying electric-motor equipment for an ice-resurfacing machine used in skating rinks that competes with market leader Zamboni Inc.

28.   The EDS machines use a computer to scan the bag, because of fear that a human operator would become bored and miss signs of bombs.

29.   The glass-front machines use a mechanical bar to fetch drinks and set them gently in a receptacle.

30.   The earliest snow-making machines used leftovers from household plumbing supplies and irrigation equipment.