6 Eye-Opening Facts About How Differently Black And White …

Jul 3, 2016 · 1. Most black people believe the country should do more to achieve racial equality, while less than half of white people say enough has already been done. The study shows that 88 percent of black people think that the goal for racial equality requires more work, while about half (43 percent) are skeptical that changes will actually come about.

FAQs about 6 Eye-Opening Facts About How Differently Black And White … Coupon?

How many shades of Grey can a human eye see?

According to a rough estimate, human eyes can see and distinguish up to 30 shades of the colour grey (although some people might be able to see more shades!). The light-and-dark detecting rod cells in your eyes’ retina help you see this astounding range of greys. (Watch this video for more information.) ...

How do our eyes perceive depth?

Our eyes have the ability to perceive depth and distinguish which object is farther away and which one is closer to us. This principle is similar to how 3D glasses work. ...

How much light reaches the eye?

The total amount of light reaching the eye depends far more on the level of illumination in any scene than it does on the percentage of light that any given surface reflects. ...

How much light does a black lens reflect?

In contrast (pun unintended), black surfaces reflect only about 3 percent of that light. When this reflected light enters the eye opening called the pupil, the lens focuses it onto the inner rear surface, or retina, much as light enters a simple box camera through a lens and then strikes the film. ...

Does the brain know what the two shades of gray are?

Remember, the brain does not yet know what these two shades of gray are—it has only relative luminance. If the brain’s anchoring rule is based on the highest luminance, then the middle gray half should appear white and the black half should appear middle gray. ...

Does white reflect more light than black?

For instance, under the same illumination, white reflects much more light to the eye than black does. But a white surface in shadow often reflects less light to the eye than a black surface in sun. Nevertheless, somehow we can accurately discern which is which. How? Clearly, the brain uses the surrounding context to make such judgments. ...