Entertaiment, Viral Videos Looking Into How A Split-Flap Display Does It’s Trick! step son 3 years ago No Comments Facebook Prev Article Next Article Split-flap displays are simple machines, but are an ingenious creation! Here’s how one works! Facebook Prev Article Next Article You may also like Cool Farm Machines In Actions! step son 2 years ago Machines That Work With Satisfying Results step son 1 year ago Do Robots Deserve Rights? step son 7 years ago