The Real Reason Escalators Have Brushes (It’s Not for Your Shoes)

Most people assume the nylon brushes lining the sides of mall and subway escalators are there to clean your shoes. In reality, doing that is one of the most dangerous habits you can have on moving stairs. In this video, we break down: • What escalator "skirt brushes" actually do • The physics behind side-gap entrapment (and why moving steps chew through fabric) • Why soft footwear like Crocs and long shoelaces are especially vulnerable • How escalator emergency brakes detect entrapment If you learned something new, don’t forget to leave a like, drop a comment with the habit you do without thinking, and hit Subscribe for more breakdowns of everyday engineering mysteries! #Engineering #EverydayScience #Facts #HowThingsWork #SafetyDesign #ArchitectureFacts