After spending hours working at a computer display, what color will a blank piece of white paper probably appear to be? The answer may surprise you. Due to the phenomenon known as the "afterimage effect," a blank piece of white paper may actually appear to be a different color than white after staring at a computer screen for an extended period of time. When you look at a bright computer screen for an extended period of time, your eyes become fatigued and can develop a temporary color afterimage. This means that when you look away from the screen and onto a blank white piece of paper, the paper may appear to have a tint of the complementary color to the one you were staring at on the screen. For example, if you were looking at a blue screen, the white paper may appear to have a slight yellow tint. This phenomenon occurs because the cells in your eyes that detect color become desensitized to the color they are constantly being exposed to. When you look away from the screen, these cells take a moment to readjust, causing the afterimage effect. This effect can last for a few seconds to a few minutes, depending on how long you were staring at the screen. To combat the afterimage effect, it is recommended to take regular breaks from staring at a computer screen. The 20-20-20 rule is a good guideline to follow - every 20 minutes, take a 20-second break and look at something 20 feet away. This can help reduce eye strain and prevent the afterimage effect from occurring. In conclusion, after spending hours working at a computer display, a blank piece of white paper may appear to be a different color than white due to the afterimage effect. Taking regular breaks and following the 20-20-20 rule can help reduce eye strain and prevent this phenomenon from occurring. Remember to give your eyes a break and take care of your vision while working on a computer.

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