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  2. Eye color - Wikipedia

    en.wikipedia.org/wiki/Eye_color

    Although the deep blue eyes of some people such as Elizabeth Taylor can appear purple or violet at certain times, "true" violet-colored eyes occur only due to albinism. [73] [74] [75] Eyes that appear red or violet under certain conditions due to albinism occur in less than 1 percent of the world's population. [70]

  3. List of people with heterochromia - Wikipedia

    en.wikipedia.org/wiki/List_of_people_with_hetero...

    This is a list of notable people who have been documented as having heterochromia iridis, a condition when the irises have different colours. People who are frequently mistakenly thought to have heterochromia are not included, but may be listed in the Notes section.

  4. Tetrachromacy - Wikipedia

    en.wikipedia.org/wiki/Tetrachromacy

    The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.

  5. Impossible color - Wikipedia

    en.wikipedia.org/wiki/Impossible_color

    Exploration of the color space outside the range of "real colors" by this means is major corroborating evidence for the opponent-process theory of color vision. Chimerical colors can be seen while seeing with one eye or with both eyes, and are not observed to reproduce simultaneously qualities of opposing colors (e.g. "yellowish blue"). [4]

  6. List of A Series of Unfortunate Events characters - Wikipedia

    en.wikipedia.org/wiki/List_of_A_Series_of...

    When Violet was five years old, she won an invention contest with an "automatic rolling pin", which she made using a window shade and six pairs of roller skates. Violet also invented a new kind of pencil sharpener, built a telephone from scratch and created a device to soothe Sunny's teething pains.

  7. Are Psychics Real? Does That Even Matter to Them? How ... - AOL

    www.aol.com/psychics-real-does-even-matter...

    look into my eyes Wilson draws on the irrationality of trauma in the doc’s disarming opening sequence: an E.R. doctor asking to communicate with a young girl that she saw die from a gunshot ...

  8. Cone cell - Wikipedia

    en.wikipedia.org/wiki/Cone_cell

    Similarly, blue and violet hues are perceived when the S receptor is stimulated more. S Cones are most sensitive to light at wavelengths around 420 nm. However, the lens and cornea of the human eye are increasingly absorptive to shorter wavelengths, and this sets the short wavelength limit of human-visible light to approximately 380 nm, which ...

  9. Optography - Wikipedia

    en.wikipedia.org/wiki/Optography

    Optography is the process of viewing or retrieving an optogram, an image on the retina of the eye. A belief that the eye "recorded" the last image seen before death was widespread in the late 19th and early 20th centuries, and was a frequent plot device in fiction of the time, to the extent that police photographed the victims' eyes in several ...