When we see a drawing of a transportation futuristic, we instinctively know that’s what it is. But what do jetpacks, rolling boats and these other endeavors have in common? With few exceptions, such as Leonardo da Vinci’s visions of helicopters and airplanes, the futuristics are the product of the Industrial and post-Industrial Age, a time when the pace of technological change rapidly accelerated and people began dreaming about the future in new ways. —Transportation Futuristics (Berkeley)

Thanks for the suggestion, Rosemary.