Apparently, there’s some sort of sporting event being televised this weekend that has been historically used as an excuse to buy a big-screen TV. [Joel] wanted a huge-screen TV on the cheap, so he ...

Overhead projectors use a bright lamp and mirrors to display text or images from a transparency sheet on a wall or screen. If your projector displays a shadow when projecting, you must troubleshoot ...

Transparency paper or film is a type of thin plastic sheet. Photocopy or print on this paper to produce clear sheets for presentation booklets or transparencies for use on an overhead projector.