Where are the hoverboards? Professor says not too far off

Thought you’d celebrate the real Back to the Future Day with a ride on your hoverboard or in your flying car? Sadly, that’s not going to happen in time for Wednesday; but the levitating technology Marty McFly encountered in his jaunt through Oct. 21, 2015 during the 1989 film “Back to the Future II” isn’t as far-fetched as it might seem.