Greg Henderson's company created the first maglev hoverboard, called Hendo. It can hold a single person about 2.5 centimeters above a metal surface. "We are creating a magnetic field, and then through a method of induction, that's part of our secret sauce, we are creating a secondary and equal magnetic field in this conductive surface."_________________________ 格雷格`亨德森的公司开发了首款名为Hendo的磁悬浮滑板.它能将一位人漂浮到某种金属表面的2.5厘米以上. 他说,"我们正在开发一种磁场,然后通过电磁感应的方式,在这个导电表面建立一个次级的平衡磁场.这是我们的秘密武器之一."________________________