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  2. Flash blindness - Wikipedia

    en.wikipedia.org/wiki/Flash_blindness

    However, if the eyes are exposed to a high enough level of light, such as a nuclear explosion, the blindness can become permanent. Flash blindness may also occur in everyday life. For example, the subject of a flash photograph can be temporarily flash blinded. This phenomenon is leveraged in non-lethal weapons such as flash grenades and laser ...

  3. Lightning injury - Wikipedia

    en.wikipedia.org/wiki/Lightning_injury

    Direct strike: lightning directly hits the person Orifice entry: may occur if lightning strike occurs near the head entering eyes, ears and mouth to flow internally; Side splash: lightning jumps from the location of primary strike to a nearby person; Contact injury: injury that occurs when a person is touching an object on the pathway of lightning

  4. Photopsia - Wikipedia

    en.wikipedia.org/wiki/Photopsia

    Peripheral (posterior) vitreous detachment occurs when the gel around the eye separates from the retina. This can naturally occur with age. However, if it occurs too rapidly, it can cause photopsia which manifests in flashes and floaters in the vision. Typically, the flashes and floaters go away in a few months.

  5. Heat lightning - Wikipedia

    en.wikipedia.org/wiki/Heat_lightning

    Under optimum conditions, the most intense thunderstorms can be seen at up to 100 miles (160 km) over flat terrain or water when the clouds are illuminated by large lightning discharges. However, an upper limit of 30–50 miles (48–80 km) is more common due to topography, trees on the horizon, low to mid-level clouds, and the fact that local ...

  6. Can lightning travel through plumbing? Here’s how to stay ...

    www.aol.com/lightning-travel-plumbing-stay-safe...

    Lightning can travel through plumbing,” the CDC said. “It is best to avoid all water during a lightning storm. Do not shower, bathe, wash dishes, or wash your hands.”

  7. Moore's lightning streaks - Wikipedia

    en.wikipedia.org/wiki/Moore's_lightning_streaks

    Moore's lightning streaks are lightning type streaks (seen to the temporal side) due to sudden head or eye movement in the dark. They are generally caused by shock waves in the vitreous humor hitting the retina or traction on the retina from fibers in the vitreous humor .

  8. How to watch the Quadrantids, one of the strongest meteor ...

    www.aol.com/watch-quadrantids-first-meteor...

    But keep your eyes peeled because with a peak only lasting about six hours, as opposed to multiple days, the Quadrantids are also one of the quickest meteor showers to blaze across the night sky.

  9. Lightning - Wikipedia

    en.wikipedia.org/wiki/Lightning

    Lightning is a natural phenomenon, more specifically an atmospheric electrical phenomenon. It consists of electrostatic discharges occurring through the atmosphere between two electrically charged regions, either both existing within the atmosphere or one within the atmosphere and one on the ground, with these regions then becoming partially or wholly electrically neutralized.