Everybody’s waiting for the hoverboard from Back to the Future II to become a reality. Lexus, of all companies, has now revealed their prototype. It’s a complex thing, as Wired explains:
As we explained in June, the Lexus hoverboard relies on superconductors and magnets, which work against gravity to lift board and rider above the ground. That cool-looking steam coming off of the sides isn’t decorative; it’s liquid nitrogen, cooling the superconductors to -321 degrees Fahrenheit, the temperature at which they become superconducting.
Here’s the video, of which I love the water-hovering parts the most: