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Material properties (size, color, texture) of fulgurites vary widely, depending on the size of the lightning bolt and the composition and moisture content of the surface struck by lightning. Most natural fulgurites fall on a spectrum from white to black. Iron is a common impurity that can result in a deep brownish-green coloration.
The intense heat generated by a lightning strike can burn tissue, and cause lung damage, and the chest can be damaged by the mechanical force of rapidly expanding heated air. [ 4 ] Just as heat can cause expanding air in the lungs, the explosive shock wave created by lightning (the cause of thunder) can cause concussive and hearing damage at ...
Direct damage caused by lightning strikes occurs on occasion. [56] In areas with a high frequency for cloud-to-ground lightning, like Florida, lightning causes several fatalities per year, most commonly to people working outside. [57] Acid rain is also a frequent risk produced by lightning. Distilled water has a neutral pH of 7.
And second, Amazon sale discounts since "unlike some other gaming manufacturers, which have started protecting the value and price of their books though a MAP, a customer can, when it comes back into stock, order Xanathar's Guide from Amazon for $29.95, a 40% discount. One Amazon seller even has the book, as of this writing, listed at $19.30 ...
Lightning currents have a very fast rise time, on the order of 40 kA per microsecond. Hence, although lightning is a form of direct current, conductors of such currents exhibit marked skin effect as with an alternating current, causing most of the currents to flow through the outer surface of the conductor. [32]
They consist of the Elemental Planes [1] of air, earth, fire and water, and the Energy Planes. Some descriptions also contain the Para-elemental (magma, ice, etc.) and Quasi-elemental planes (lightning, dust, etc.) linking them. [1] The energy planes are the Positive Material Plane and Negative Material Plane.
Lightning Activity Levels Level Description 1 No thunderstorms: 2 Isolated thunderstorms. Lightning is very infrequent, 1–5 cloud-to-ground strikes in a five-minute period. 3 Widely scattered thunderstorms. Lightning is infrequent, 6–10 cloud-to-ground strikes in a five-minute period. 4 Scattered thunderstorms.
[77] [78] The spell's ability to cause automatic damage makes it one of the most-used spells. [79] In the initial release of 4th edition, magic missile required an attack roll. The July 2010 update changed this back to an automatic hit, albeit with a lower amount of damage. Meteor Swarm: Four meteors fly forward and explode like Fireballs. One ...