A complete 4K camera and 3-axis gimbal system come integrated with the Phantom 3 Professional edition quadcopter from DJI.
Standing vs. Lying Down. It's a common misconception that cows don't lie down to rest and that they sleep standing up, just like horses do much of the time. In fact, cows actually lie down for up to 14 hours per day, standing up every few hours, stretching and then lying back down again.
According to the Mayo Clinic, adults should get seven to eight hours of sleep a night. The Cleveland Clinic suggests that adults should get at least seven and a half hours of sleep a night and not much more than eight hours a night.