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  2. Flicker fusion threshold - Wikipedia

    en.wikipedia.org/wiki/Flicker_fusion_threshold

    Some systems could increase refresh rate to higher values such as 72, 75, 100, or 120 Hz to ease this problem, though even if the faster refresh is an integer multiple of the source material framerate to eliminate judder, without higher framerate source material this causes the perception of duplicate images. [7]

  3. Blackleg (disease) - Wikipedia

    en.wikipedia.org/wiki/Blackleg_(disease)

    Burning the upper layer of soil to eradicate left-over spores is the best way to stop the spread of blackleg from diseased cattle. Diseased cattle should be isolated. Treatment is generally unrewarding due to the rapid progression of the disease, but penicillin is the drug of choice for treatment. Treatment is only effective in the early stages ...

  4. Nail (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Nail_(anatomy)

    Thus, in humans, the nail of the index finger grows faster than that of the little finger; and fingernails grow up to four times faster than toenails. [ 10 ] In humans, fingernails grow at an average rate of approx. 3.5 mm (0.14 in) a month, whereas toenails grow about half as fast (approx. average 1.6 mm (0.063 in) a month). [ 11 ]

  5. Health effects of sunlight exposure - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_sunlight...

    [11] [12] Acute exposure may lead to a painful sunburn, which can increase the chances of developing serious skin problems later in life. [13] Long-term sunlight exposure is known to be associated with the development of some types of skin cancer , skin aging , immune suppression , eye diseases such as cataracts .

  6. Plastic pollution - Wikipedia

    en.wikipedia.org/wiki/Plastic_pollution

    Average levels of daily exposure are below the levels deemed to be unsafe, but more research needs to be done on the effects of low dose exposure on humans. A lot is unknown on how severely humans are physically affected by these chemicals. Some of the chemicals used in plastic production can cause dermatitis upon contact with human skin. In ...

  7. Great white shark - Wikipedia

    en.wikipedia.org/wiki/Great_white_shark

    The species appears to not like the taste of humans, or at least finds the taste unfamiliar. Further research shows that they can tell in one bite whether or not the object is worth predating upon. Humans, for the most part, are too bony for their liking. They much prefer seals, which are fat and rich in protein. [163]

  8. Spirit possession - Wikipedia

    en.wikipedia.org/wiki/Spirit_possession

    They envy humans for their physical body, and try to gain control of it. When they assault a human, they would intrude their mind, trying to displace the human spirit. The human's mind would adapt to the passions of anger, violence, irrationality and greed, the intruding demon is composed of.

  9. Human penis - Wikipedia

    en.wikipedia.org/wiki/Human_penis

    In human anatomy, the penis (/ ˈ p iː n ɪ s /; pl.: penises or penes; from the Latin pēnis, initially "tail" [1]) is an external male sex organ (intromittent organ) that serves as a passage for excretion of urine and ejaculation of semen.