PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY
Conformity test. A technician testing the effects of the environment on CD-Roms (compact disc read- only memory). The discs are exposed to bright artificial light for several hours, simulating several months worth of exposure to natural light. They will then be tested to see how well they operate. Photographed at the National Testing Laboratory, France.
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