Outside-the-Box Thinking: An Aquatic Bicycle, Without the Bicycle

"In perhaps one of the great ironies of human civilisation," writes Brian Kaller, "mechanical devices to truly magnify human power came along as soon as we didn't need them." Kaller's article, "The Hidden Potential of Bicycles," is well worth a read. To Kaller's point, bicycles came around in the late 1800s, and the motor car followed soon after. This makes it easy to overlook that bicycles are, in Kaller's opinion, "the most efficient method of using our bodies, allowing us to attain...