This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Vortex filament BiotSavart law illustration. This figure illustrates vortex filament and the velocity induced by it at an arbitrary point own original text selfmade in MSPaint created th Dec myth One may use it freely No tags attached Mythealias Original upload log en Milicevic CommonsHelper en Vortexfilament BiotSavartlawillustration