Using gravity as an accelerant, watch as longboarder Zak Maytum effortlessly cruises down a hill in Boulder, Colorado.
Hitting a top speed of roughly 110 kmph, this video will make you feel a heady mix of a secondhand adrenaline rush, and possible jealousy.
This video is also pretty informative in the dynamics of momentum — of gaining it, and then pulling the brakes. The brakes in this case, are the longboarder's palms, covered in specially crafted gloves. The glove-based fireworks display was a fun education too.