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.
Horses need two other types of sleep besides the REM sleep of laying down. They need 2 hours of the dozing or drowsiness sleep and another hour of Slow Wave Sleep. These types of sleep they can do standing up. Iâm sure youâve noticedâ¦.