This early prototype shows a future where your shopping cart can float up the stairs while carrying all of your stuff. The Palletrone is a drone-based floating cart, designed to hover and transport ...

The Palletrone is essentially a multi-rotor drone enclosed in a protective cage, creating a hovering platform that users can push around at chest height. Developed by researchers at Seoul National ...

Shopping carts are surprisingly expensive. Prices range up to about $300 for a cart, which may seem like a lot, but they have to be pretty rugged and are made to work for decades. Plastic carts are ...