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Sprites or red sprites are large-scale electric discharges that occur in the mesosphere, high above thunderstorm clouds, or cumulonimbus, giving rise to a varied range of visual shapes flickering in the night sky. They are usually triggered by the discharges of positive lightning between an underlying thundercloud and the ground.
Typically, lightning discharges 30,000 amperes, at up to 100 million volts, and emits light, radio waves, x-rays and even gamma rays. [1] Plasma temperatures in lightning can approach 28,000 kelvins. Atmospheric electricity describes the electrical charges in the Earth's atmosphere (or that of another planet).
A radio atmospheric signal or sferic (sometimes also spelled "spheric") is a broadband electromagnetic impulse that occurs as a result of natural atmospheric lightning discharges. Sferics may propagate from their lightning source without major attenuation in the Earth–ionosphere waveguide, and can be received thousands of kilometres from ...
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Unlike the case of sprites, these large charges do not seem to be associated with TGF-generating lightning. [10] Thus the DC field model requires the TGF to occur lower down, at the top of the thundercloud (10–20 km) where a local field can be stronger.
A franchise owner and a sensory scientist explain why McDonald's Sprite tastes so different. The post Here’s Why Sprite at McDonald’s Tastes So Good appeared first on Reader's Digest.
TARANIS (Tool for the Analysis of Radiation from lightning and Sprites) was an observation satellite of the French Space Agency which would have studied the transient events produced in the Earth's atmospheric layer between 10 km (6.2 mi) and 100 km (62 mi) altitude.
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