== Lynkanalens form ==
Lynets kanal er ikke en ret lodret linje som man umiddelbart ville forvente, men derimod med masser af sidekanaler og knæk – faktisk er den bedste [[Model (matematik)|model]] for lynets form en [[fraktal]].<ref>[https://metode.org/metodes-whys-and-wherefores/why-are-lightning-bolts-fractal.html 01/04/2013, metode.org: Why Are Lightning Bolts Fractal?] Citat: "...if we look carefully at one part of the lightning bolt, its appearance is exactly the same as the whole lightning. From this perspective, lightning bolts are fractal...", [https://web.archive.org/web/20180430004000/https://metode.org/metodes-whys-and-wherefores/why-are-lightning-bolts-fractal.html backup]</ref>
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