" Go get me that projector, please".
You could use welders goggles. Or you could use a projector such as a pin hole projector.
Large projector screens are used in several places today. Movie theaters use projector screens, large conferences use projector screens, and you can even rent or purchase projectors and screens for personal use.
projector have concave or convex
No, a movie projector uses a convex lens.
to find the degrees of an angle
A multimedia projector is a compact, high resolution, full-color projector capable of projecting text, images, video and audio content. Typically the projector will feature inputs for a computer, DVD player, VCR, CD player and storage device
The Automatic 543 is the model of the projector that takes this tray.
Yes one to use would be the Hitachi Projector Remote Control
One can find a cheap projector to use for PowerPoint presentations on ebay where they can be purchased both used and new. One can also buy them from Amazon and Cheap Projector.
You hook up a projector to your computer and aim the projector at the wall. Then you turn it on. You may need special software to use a projector with your computer, however in most cases, such software will come free with the projector.
Epson makes a projector for use with karaoke. It is a portable projector that can use a variety of different sources including SB, HDMI, PC and inputs for MP3 players. Epson’s EH-DMR Karaoke projector even offers an integrated DVD player and a microphone input for easy karaoke set-up.