by Nina Saunders.
What is Light Graffiti? Light graffiti (also called light writing, light painting, and light art) is simply long exposure photography using lights to create objects.
Light painting is a photographic technique in which exposures are made by moving a hand-held light source or by moving the camera. The term light painting also encompasses images lit from outside the frame with hand-held light sources. Light Painting Photography can be traced back to the year 1914 when Frank Gilbreth, along with his wife Lillian Moller Gilbreth, used small lights and the open shutter of a camera to track the motion of manufacturing and clerical workers. Man Ray, in his 1935 series “Space Writing,” was the first known art photographer to use the technique and Barbara Morgan began making light paintings in 1940.
The Digital Rights Management chair demonstrates what is happening in modern digital times if you buy media. You’re only entitled to use what you have bought in limited ways. Too much use destroys what you have bought. As Thibault says:
The DRM Chair has only a limited number of use before it self-destructs. The number of use was set to 8, so everyone could sit down and enjoy a single time the chair.
A small sensor detects when someone sits and decrements a counter. Every time someone sits up, the chair knocks a number of time to signal how many uses are left. When reaching zero, the self-destruct system is turned on and the structural joints of the chair are melted.