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Printable version; Page information; ... Lightning icon: Date: 23 November 2006 (original upload date) ... This icon was created with Adobe Illustrator. Licensing.
In 1943, NBC introduced its third logo, a microphone surrounded by lightning bolts, which was a modification of the original 1926 logo used by the NBC radio network. Lightning bolts were also part of the logo of corporate parent RCA, [5] as well as that of one-time sister company RKO Pictures. The waves placed on the left side were meant for ...
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Positive lightning is less common than negative lightning and on average makes up less than 5% of all lightning strikes. [ 10 ] A bolt from the blue lightning strike which appears to initiate from the clear, but [ clarification needed ] the turbulent sky above the anvil cloud and drive a bolt of plasma through the cloud directly to the ground.
When a sufficiently large positive lightning strike carries charges to the ground, the cloud top is left with a strongly negative net charge. This can be modeled as a quasi-static electric dipole and for less than 10 milliseconds a strong electric field is generated in the region above the thunderstorm.
Date/Time Thumbnail Dimensions User Comment; current: 19:30, 25 November 2024: 219 × 204 (1 KB): Sbaio: Reverted to version as of 09:05, 4 March 2020 (UTC) restore correct version
Natural plasmoid produced in the near-Earth magnetotail by magnetic reconnection. A plasmoid is a coherent structure of plasma and magnetic fields.Plasmoids have been proposed to explain natural phenomena such as ball lightning, [1] [2] magnetic bubbles in the magnetosphere, [3] and objects in cometary tails, [4] in the solar wind, [5] [6] solar atmosphere, [7] and in the heliospheric current ...