I didn't notice this until after the contraption was turned and he started fiddling with the balls again, but if you watch closely, you can see that they roll "up" different ramps at different rates: almost a second along the lower right ramp, yet barely a half second along the upper left. This wouldn't happen if the ramps were all the same length and incline, as they're meant to appear.
Sometimes, you just need to know what to look for...
I didn't notice this until after the contraption was turned and he started fiddling with the balls again, but if you watch closely, you can see that they roll "up" different ramps at different rates: almost a second along the lower right ramp, yet barely a half second along the upper left. This wouldn't happen if the ramps were all the same length and incline, as they're meant to appear.
Sometimes, you just need to know what to look for...