The projector is something that takes images and displays them in a bigger fashion for a group of people to see. You may have thought the old slide show projectors and those "overheads" that your teachers used in grade school were the first projectors invented, but they were around long before that. It is unclear about who, where, and when it occured, however in 1645 Athansius Kircher described and illustrated a device for reflecting sunlight from a mirror, through a lens and onto a screen. In today's world the projector has evolved into something that has made displaying still images and videos simple and easy, and there could soon be a phone with the ability to work as a projector. The tagged video shows how life like these big projector screens can be! The projector is a tool of media because without it, it would be much more difficult to spread important information to a large group of people.
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