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Representation of upper-atmospheric lightning and electrical-discharge phenomena Discovery image of a TLE on Jupiter by the NASA Juno probe. [1]Upper-atmospheric lightning and ionospheric lightning are terms sometimes used by researchers to refer to a family of short-lived electrical-breakdown phenomena that occur well above the altitudes of normal lightning and storm clouds.
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.
Astraphobia, also known as astrapophobia, brontophobia, ceraunophobia, or tonitrophobia, is an abnormal fear of thunder and lightning or an unwarranted fear of scattered and/or isolated thunderstorms, a type of specific phobia. It is a treatable phobia that both humans and animals can develop.
A lightning prediction system is a type of lightning detection equipment that determines when atmospheric conditions likely to produce lightning strikes and sounds an alarm, warning those nearby that lightning is imminent and giving them the chance to find safety before the storm arrives in the area. Lightning protection systems are often ...
Lightning currents have a very fast rise time, on the order of 40 kA per microsecond. Hence, although lightning is a form of direct current, conductors of such currents exhibit marked skin effect as with an alternating current, causing most of the currents to flow through the outer surface of the conductor. [32]
Lighting design as it applies to the built environment is known as 'architectural lighting design'. Lighting of structures considers aesthetic elements as well as practical considerations of quantity of light required, occupants of the structure, energy efficiency, and cost.
Wanderer above the Sea of Fog [a] is a painting by German Romanticist artist Caspar David Friedrich made in 1818. [2] It depicts a man standing upon a rocky precipice with his back to the viewer; he is gazing out on a landscape covered in a thick sea of fog through which other ridges, trees, and mountains pierce, which stretches out into the distance indefinitely.
Scene from the 1990 film Total Recall. Historians of film note that the trope of a "red pill" as decisive in a return to reality made its first appearance in the 1990 film Total Recall, which has a scene where the hero (played by Arnold Schwarzenegger) is asked to swallow a red pill in order to symbolize his desire to return to reality from a dream-like fantasy.