Its replacement would have been much more impressive, had it been granted: the Universarium Model IX, which is a $3.5 million astronomical projection unit capable of accurately representing 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 ...

A Brief History: Implementing 3D technology in schools became more affordable in 2010, when manufacturers included DLP chips in their projectors. In 2011, the Boulder Valley School District in ...