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Mechanisms that cause the charges to build up to lightning are still a matter of scientific investigation. [47] [48] A 2016 study confirmed dielectric breakdown is involved. [49] Lightning may be caused by the circulation of warm moisture-filled air through electric fields. [50]
Lightning, as varied in properties measured across orders of magnitude as it is, can cause direct effects or have secondary impacts; lead to the complete destruction of a facility or process or simply cause the failure of a remote electronic sensor; it can result in outdoor activities being halted for safety concerns to employees as a ...
Thunder is the sound caused by and after 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]
Distant lightning near Louisville, Kentucky. Heat lightning (not to be confused with dry thunderstorms, which are also often called dry lightning) is a misnomer [1] used for the faint flashes of lightning on the horizon or other clouds from distant thunderstorms that do not appear to have accompanying sounds of thunder.
"It's really the electric charge that is the main concern to cause injury or fatality from the lightning," Vagasky explained. Because of the charge, a person can go into cardiac arrest.
While lightning isn’t going to hit every single flight you’re on, its still not as uncommon as you think. It's expected that every aircraft gets struck once or twice every couple of years.
Dry lightning refers to lightning strikes occurring in this situation. Both are so common in the American West that they are sometimes used interchangeably. [2] Dry thunderstorms occur essentially in dry conditions, and their lightning is a major cause of wildfires.
There hasn’t been a reported fatality of lightning-caused house fires in Massachusetts in at least the past five years, Wark said. “The most dangerous fire is the one that you’re not aware of.