This popped up in my algo for YT. Its rather impressive what these two men do.

In the beginning, I was gonna say, I've seen Hamsters do it better, then my inner "engineer" realized the physics involved, from the forces generated with the structure, and the fact that running on the "outside" of a wheel, with the increasing and decreasing "g" of the person doing the running, coupled with the inner ear, balance, visual and other sensory "noise" requires a great deal of focus, physical stamina and strength.

So, I put my hamsters back in their cage, and watch this with the awe of my inner 8 year old.


This is real skill and daring, not like the Wing Suit guys that smack into a rock on the slope of a sharply inclined mountain, or some "Base Jumper" that can't effectively pull laundry out of a backpack while falling @ g = 32 ft/s².