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2. Upper-atmospheric lightning - Wikipedia

   en.wikipedia.org/wiki/Upper-atmospheric_lightning

   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.

3. Lightning - Wikipedia

   en.wikipedia.org/wiki/Lightning

   Lightning is a natural phenomenon formed by electrostatic discharges through the atmosphere between two electrically charged regions, either both in the atmosphere or one in the atmosphere and one on the ground, temporarily neutralizing these in a near-instantaneous release of an average of between 200 megajoules and 7 gigajoules of energy, depending on the type.

4. Lichtenberg figure - Wikipedia

   en.wikipedia.org/wiki/Lichtenberg_figure

   A Lichtenberg figure (German Lichtenberg-Figur), or Lichtenberg dust figure, is a branching electric discharge that sometimes appears on the surface or in the interior of insulating materials. Lichtenberg figures are often associated with the progressive deterioration of high voltage components and equipment.

5. Sprite (lightning) - Wikipedia

   en.wikipedia.org/wiki/Sprite_(lightning)

   A sprite at the horizon, with lightning below in the troposphere and above the green line of airglow at the upper mesopause and border to space (the bright light above is the Moon). First color image of a sprite, taken from an aircraft. A sprite over Laos, as seen from the International Space Station. Sprites appear as luminous red-orange flashes.

6. Schumann resonances - Wikipedia

   en.wikipedia.org/wiki/Schumann_resonances

   The global electromagnetic resonance phenomenon is named after physicist Winfried Otto Schumann who predicted it mathematically in 1952. Schumann resonances are the principal background in the part of the electromagnetic spectrum [2] from 3 Hz through 60 Hz [3] and appear as distinct peaks at extremely low frequencies around 7.83 Hz (fundamental), 14.3, 20.8, 27.3, and 33.8 Hz.

7. Rollie Free - Wikipedia

   en.wikipedia.org/wiki/Rollie_Free

   Rollie Free on an Indian motorcycle in 1920. It is debated whether the exact model of motorcycle was a Black Lightning or Black Shadow) Most believe that it was a custom ordered Black Lightning, as it was some 100 pounds lighter and 25 hp (19 kW) more powerful than a stock Black Shadow. In one of his books, Phil Irving (one of the designers ...

8. Lightning strike - Wikipedia

   en.wikipedia.org/wiki/Lightning_strike

   A lightning strike or lightning bolt is a lightning event in which the electric discharge takes place between the atmosphere and the ground. Most originate in a cumulonimbus cloud and terminate on the ground, called cloud-to-ground (CG) lightning. A less common type of strike, ground-to-cloud (GC) lightning, is upward-propagating lightning ...

9. Lightning injury - Wikipedia

   en.wikipedia.org/wiki/Lightning_injury

   Lightning injuries are divided into direct strikes, side splash, contact injury, and ground current. [1] Ground current occurs when the lightning strikes nearby and travels to the person through the ground. [1] Side splash makes up about a third of cases and occurs when lightning strikes nearby and jumps through the air to the person. [1]