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  2. Superstition in Russia - Wikipedia

    en.wikipedia.org/wiki/Superstition_in_Russia

    On examination day, it is considered bad luck to make one's bed, wear anything new, or cut one's fingernails. The night before the exam, it is believed to be bad luck to wash one's hair. Some believe that shaving or cutting their hair one week before the exam will result in bad luck.

  3. Upside down goggles - Wikipedia

    en.wikipedia.org/wiki/Upside_down_goggles

    Upside down goggles. Upside down goggles, also known as "invertoscopes" by Russian researchers, [ 1] are optical instruments that invert the image received by the retinas upside down. They are used to study human visual perception, particularly psychological process of building a visual image in the brain. Objects viewed through such a device ...

  4. Why People Swear by the 'Cocoon' Sleep Hack: 'Best ... - AOL

    www.aol.com/why-people-swear-cocoon-sleep...

    People swear by the cozy "cocoon" sleep hack for a better night's sleep. An expert shares how it works and its benefits. People swear by the cozy "cocoon" sleep hack for a better night's sleep. An ...

  5. Ray J - Wikipedia

    en.wikipedia.org/wiki/Ray_J

    Sanctuary. Atlantic. Elektra. EastWest. Website. rayj .com. William Ray Norwood Jr. (born January 17, 1981), [ 1 ] known professionally as Ray J, is an American R&B singer, songwriter, television presenter, and actor. Born in McComb, Mississippi and raised in Carson, California, he is the younger brother of singer and actress Brandy.

  6. Over 77% of red-eye flights are delayed here: Worst airports ...

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    Detroit Metropolitan Wayne County Airport, 39.48%% late flights delayed, average delay time of 11.91 minutes. Salt Lake City International Airport, 33.47% late flights delayed, average delay time ...

  7. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  8. People Who Never Need Glasses Do This One Thing Every Day - AOL

    www.aol.com/people-never-glasses-one-thing...

    Not really. "Some people need glasses when they're young—before 45," explains , of Cleveland Clinic’s Cole Eye Institute. "If you don't need glasses before your 40s, chances are you will need ...

  9. Unihemispheric slow-wave sleep - Wikipedia

    en.wikipedia.org/wiki/Unihemispheric_slow-wave_sleep

    In USWS, also known as asymmetric slow-wave sleep, one half of the brain is in deep sleep, a form of non-rapid eye movement sleep and the eye corresponding to this half is closed while the other eye remains open. When examined by electroencephalography (EEG), the characteristic slow-wave sleep tracings are seen from one side while the other ...