She also shows how the chemical Luminol can reveal hidden blood stains that the eye alone cannot see.

VOA: special.2010.05.05

"No!" he answered. His eye glasses became wet and he had to look over top of them to see the other man.

VOA: special.2010.03.20

Years later, Anderson described how she felt on that day: "There seemed to be people as far as the eye could see.

VOA: special.2009.01.25

When they used the telescope to create images of the planet, they found an area that appeared dark in light the human eye could see.

VOA: special.2009.08.25

Experts explain that the movement of air in the atmosphere and natural qualities of the human eye caused him to see markings that were not there.

VOA: special.2010.07.11

Senior Czech officials say his remarks have been misinterpreted, but there is no doubt Europe and the United States do not see eye to eye on how to fight the financial meltdown.

VOA: standard.2009.03.29