Published on October 9, 2016
Effect Kopp-Etchells
Description
This effect is observed during the motion of the helicopter in a sandy cloud (E.g., during landing or takeoff in the desert). The blades of a helicopter are faced with the grit and sand carve the living daylights out of the helicopter blades. It looks most spectacular at dusk and night.
This is a vivid example of triboluminescence.
Translated by «Yandex.Translator»
