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It is through the perception of contrasts that we see the world around us.
Discrimination between objects and surfaces is the easier, the greater the
...
Wed, 22 Jun, 2016 at 2:57 PM
It is through the perception of contrasts that we see the world around us. Discrimination between objects and surfaces is the easier, the greater the co...
Wed, 22 Jun, 2016 at 3:01 PM
Cool-beam reflectors are made of glass with a special multiple coating that
makes them transparent for infrared radiation but not for radiation at the
...
Wed, 22 Jun, 2016 at 3:03 PM