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Lightning is a naturally occurring 3-dimensional Lichtenberg figure. Lichtenberg figures are fern-like patterns that may appear on the skin of lightning strike victims and typically disappear in 24 hours. [10] They are also known as Keraunographic markings. [11] A lightning strike can also create a large Lichtenberg figure in grass surrounding ...
Electrical treeing first occurs and propagates when a dry dielectric material is subjected to high and divergent electrical field stress over a long period of time. . Electrical treeing is observed to originate at points where impurities, gas voids, mechanical defects, or conducting projections cause excessive electrical field stress within small regions of the di
The danger lies in the process relying on high voltages, [1] [3] [4] [6] much higher than normal mains electricity. [4] High voltages enable a potentially fatal current to pass through the body.
These tree-like lesions resemble feathering or ferning, and are also called Lichtenberg figures. [8] The marks are formed when capillaries beneath the skin rupture due to the electrical discharge and they usually appear "within hours" of the strike though they tend to disappear within a few days.
OpenSCAD is a free software application for creating solid 3D computer-aided design (CAD) objects. It is a script-only based modeller that uses its own description language; the 3D preview can be manipulated interactively, but cannot be interactively modified in 3D.
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SolveSpace is a free and open-source 2D/3D constraint-based parametric computer-aided design (CAD) software that supports basic 2D and 3D constructive solid geometry modeling. It is a constraint-based parametric modeler with simple mechanical simulation capabilities. Version 2.1 and onward runs on Windows, Linux and macOS.
Kornél Lichtenberg (1848 – after 1895), Hungarian audiologist; Little Fyodor (Dave Lichtenberg, fl. from 1980s), American musician; Georg Christoph Lichtenberg (1742–1799), German scientist, satirist and anglophile; Jacqueline Lichtenberg (born 1942), American science fiction author; Judith Lichtenberg (born 1948), American philosopher