these new projectors come as highly premium offerings starting at $7,999. These models use a three chip 3LCD laser array ...

The projectors in this guide can act as a lamp, put on a light show or completely light up a room. There's also a mix of scientifically accurate and fictional but awesome-looking projections ...

Place the overhead projector in the back ... distances because they are points of light. Give each student a ball and string. Ask them to find a star beam by moving their hands in the area between ...