flatreader

The legend of 3M's invisible electrostatic wall

Winding unit of extrusion plastic film blowing machine ; close up. Copyright (c) 2019 Mr.1/Shutterstock. No use without permission.

Giant polypropylene rollers at the 3M factory generated so much static electricity that it formed a strange "invisible wall" that would alarm and impede employees there. William Beatty, citing David Swenson, described the peculiar phenomenon in 1996—as observed in late summer in South Carolina, August 1980, in high humidity. — Read the rest

The post The legend of 3M's invisible electrostatic wall appeared first on Boing Boing.