Examlex
What was the ultimate symbol of the Cold War between the East and West that was erected in 1961 but was torn down in 1989?
Difference Threshold
The smallest difference in stimulus intensity required to detect a difference between two stimuli, also known as the just noticeable difference (JND).
Cornea
The tough, transparent, protective layer that covers the front of the eye and bends light rays inward through the pupil.
Eye
An organ of vision that detects light and converts it into electro-chemical impulses in neurons.
Transparent
Allowing light to pass through so that objects behind can be distinctly seen; in an informational context, clear and easy to understand or recognize.
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