71.   Part of the problem, researchers said, is that computer monitors are specifically built to reproduce the world for the human eye.

72.   Pollock was apparently testing the limits of what the human eye would find aesthetically pleasing.

73.   Put another way, there are two distinct visual systems in mammals, or as one expert said, the human eye can have vision without sight.

74.   So to the human eye and touch the Sacagawea and the Susan B. look very different, but to a vending machine they look exactly the same.

75.   Soon he realizes that the creature is brilliantly patterned and has lustrous human eyes.

76.   Some human eye devised the spacings, guided the beginnings, then let nature take its course.

77.   Still, no instrument can take the place of the human eye.

78.   Such stars could also be home to mirror planets and maybe even mirror organisms, but would be invisible to the human eye.

79.   That means that such incredibly dim deep-sky objects as nebulae are seen by the human eye in the monochrome of low-light vision.

80.   The airborne laser consists of infrared light, invisible to human eyes.