Although [Serokoy] is not thrilled with the outcome of his Nipkow disk clock (translated), but we really enjoy it. It uses the Persistence of Vision concept to create a light display from a rotating ...

Whether you own a small business and need to showcase your best sellers or you’re an avid collector looking to display your prized possessions for all to see, rotating display stands are a versatile ...

You've probably seen them at airports, the stock exchange, on buses and now you can purchase a modern version of electromagnetic dot matrix display for your home. A ...