In The Overhead Projector: Don’t Overlook It (Part 1), I explained why it’s better to use a projector (be it an old-fashioned overhead or LCD) than to write on the board. Now we turn to how to use a ...

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 ...

Overhead projectors are useful tools to present large visuals in the classroom or boardroom, but poor care and the temperature of the machine cause possible risks to your health and safety. To ensure ...

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 ...

PLAINVIEW, Texas (KCBD) - Remember the days of overhead projectors? They were in every classroom. Wayland Baptist University saved all of those clear, plastic sheets, also known as transparencies. It ...

Slide shows and overhead projectors with images that are crooked, upside down, mirror imaged, or simply lost, are well and truly a thing of the past. Data projectors suited to PowerPoint presentations ...

John McCain has frequently criticized Barack Obama for a $3 million earmark for an "overhead projector" for a planetarium in Chicago. Paul Knappenberger, president of Chicago's Adler Planetarium, ...