Paper on the wall by laser

Picking up discarded items and an unusual light, an Australian artist created a projector, which could "project" images on the wall at a distance of several meters.

A Popsci Mark Jannot editor's photo of 2.4 x 3 meters was launched on a wall about 30 meters away. This laser is cheaper and brighter than other colors. (Photo: Popsci)

The collection from Chris Poole's wastebasket includes an old lamp, a tiny blue laser light (used in rods). Next, he mounted an electronic rack on a 1 meter long wooden platform and placed the laser at one end. The other end is a lens taken from an old camera. Between these two objects is a temporary projection racks and projection lenses. The projector magnifies the laser beam so that it covers the projection plate and the lens of the camera will allow him to adjust the focus.

Poole's special projector. (Photo: Popsci)

Thanks to this special "projector" , Poole can now project on the wall of a former Prime Minister John Howard's home image or family photos. His plan was to photograph walleyes on public places, which could lead to new ways of learning in science.