Sci-fi dreams do come true: Floating shopping carts are here

This early prototype shows a future where your shopping cart can float up the stairs while carrying all of your stuff.

From Back to the Future hoverboards to Star Wars floating speed bikes, floating vehicles have captured the dreams of nerds for decades. And while anti-gravity remains in the realm of fiction, we’re now getting closer to it being a reality. Palletrone, a flying cart developed by researchers at SeoulTech university is not quite the floating platforms seen in sci-fi movies...