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 a lot ...
Projectors can be a cheaper and far more convenient way to put a gigantic 100+ inch TV in your living room. But to get an image that rivals an LCD or OLED TV, you can’t just point them at a bare wall.