By Mark Stenhoff B.Sc., M.Phil. (Lond.), C.Phys., M.Inst.P., F.R.A.S., F.R.Met.S. (auth.)
Down comes a deluge of sonorous hail, Or prone-descending rain. Wide-rent, the clouds Pour a complete flood, and but, its flame unquenched, Th’unconquerable lightning struggles via. Ragged and fierce, or in crimson whirling balls, And fires the mountains with redoubled rage. Black from the stroke, above, the smould’ring pine Stands a tragic shattered trunk; and, stretched under, a dull crew the blasted livestock lie. James Thompson, “The Seasons” (1727) were investigating ball lightning for greater than 20 years. I released a ball lightning record in Nature in 1976 that got around the globe exposure and that i as a result many of us wrote to me with money owed in their personal studies. inside a really short while, I had gathered approximately two hundred firsthand debts, and the dossier has persevered to develop gradually due to the fact then. numerous issues inspired me. Few of these who wrote to me had any specific foreknowledge of ball lightning on the time in their statement. still, as soon as experiences of alternative phenomena corresponding to St. Elmo’s hearth have been eradicated, the remainder descriptions have been remarkably constant. additionally, approximately all who contacted me have been prepared to have an evidence of what they'd noticeable and appeared totally sincere.
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Additional resources for Ball Lightning: An Unsolved Problem in Atmospheric Physics
5). A localized electric arc may be created by a side-flash, for example, between a branch of a tree and another object, or between two separated conductors within a building. A side flash may allow current to penetrate buildings via conductors such as the mains cable or water supply pipes. This may cause an arc discharge indoors. An arc may similarly be formed outdoors on the gap in a broken conductor. Such an arc might then generate a positive afterimage (Humphreys 1936). 1. 41 Ball Lightning Evaluation Chart List A: Open air/extended source/stationary St.
Some descriptive names given to lightning do not describe distinct forms—for example, heat,* sheet,* rocket,* ribbon,* spider,* and streak* lightning are all considered to be various manifestations of intracloud, cloud-to-air, and cloud-toground discharges. Beaded* lightning is the name given to a lightning channel that seems to fragment into a series of luminous regions, perhaps tens of meters in length. This luminosity seems to be more persistent than that of the conventional CG lightning channel, lasting for perhaps 1 to 2 s.
There is then a gradual return to foul-weather conditions. When these conditions are restored, some discharges within the cloud may initiate cloud-to-ground flashes,* as indicated below. Much of the precipitation that falls from thunderclouds does so in characteristic, intense bursts of rain or hail and carries with it an electric charge. These bursts are related to changes in the surface electric field, although the exact cause-and-effect relation is not clear (FEAWP*). The first lightning bolt often precedes a sudden downpour of rain by a few minutes.
Ball Lightning: An Unsolved Problem in Atmospheric Physics by Mark Stenhoff B.Sc., M.Phil. (Lond.), C.Phys., M.Inst.P., F.R.A.S., F.R.Met.S. (auth.)