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 is a good thing they saved ...

He started by picking up an old overhead projector off of Freecycle. Freecycle is a great grassroots network, kind of like Kijiji or Craigslist — but everything is free.

Using a bare LCD panel with an overhead projector is a decades-old hack we’ve covered before. The basic idea is fairly simple, but we’ve never seen anything that could be considered a semi ...

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 ...

A lot has been said and written about the earmark Barack Obama sought for a new $3 million overhead projector at the Adler Planetarium since John McCain raised it in Tuesday night’s debate. And ...

After decades of studying outer space, the Adler Planetarium has been sucked into the orbit of presidential politics. Republican nominee John McCain criticized Democratic nominee Barack Obama in Tu… ...

Most schoolchildren have no idea what the common classroom tech from just a generation ago was used for, let alone how to use it ...

The HypnosEye throws up a few red flags right out of the gates: Instead of connecting to your iPod or iPhone’s dock connector of video-out, it simply magnifies your screen, like your math ...

Gearlog did some digging and found out that the appropriation was requested by the planetarium to replace an awesome (but obsolete) 40-year old Zeiss Mark VI star projector with a newer model ...