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Thunder is the sound caused by lightning. [1] [2] [3] Depending upon the distance from and nature of the lightning, it can range from a long, low rumble to a sudden, loud crack. The sudden increase in temperature and hence pressure caused by the lightning produces rapid expansion of the air in the path of a lightning bolt. [4]
A return stroke, cloud-to-ground lightning strike during a thunderstorm. Cloud-to-ground lightning frequently occurs within the phenomena of thunderstorms and have numerous hazards towards landscapes and populations. One of the more significant hazards lightning can pose is the wildfires they are capable of igniting. [54]
Cloud-to-ground lightning. 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).
Lightning strikes over One World Trade Center, center right, during a thunderstorm seen from The Heights neighborhood of Jersey City, N.J., Sunday, June 2, 2013.
The German word Blitzkrieg, which means "lightning war", was a major offensive strategy of the German army during World War II. The lightning bolt is a common insignia for military communications units throughout the world. A lightning bolt is also the NATO symbol for a signal asset.
The voiceless uvular plosive or stop is a type of consonantal sound, used in some spoken languages. It is pronounced like a voiceless velar plosive [k], except that the tongue makes contact not on the soft palate but on the uvula. The symbol in the International Phonetic Alphabet that represents this sound is q , and the equivalent X-SAMPA ...
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The sum of all these lightning flashes results in atmospheric noise. It can be easily heard with any AM radio or SSB receiver tuned to an unused frequency. [ 4 ] The heard static is a combination of white noise (cumulative of distant thunderstorms) and impulse noise (from relatively nearby thunderstorms, if any).