Technically, only one type of projection equipment – transmissive – qualifies as overhead projection, but the lines between competing analog presentation methods blur when less-experienced ...

Whether you prepare support materials for in-house or client presentations in Microsoft PowerPoint or pull together the equivalent of PowerPoint slides from a variety of applications, you want a ...

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 ...

Another familiar type of slide projector is the overhead projector. Like the carousel model, it was also commonly used for classroom presentations. An overhead projector looks like a big box with ...

Overheard projectors were never the most glamorous educational technology—that first Smart Board was some Star Trek-type shit ... laptop to convert a humdrum overhead projector into a neat ...