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.
Lying down â duration and frequency. Under ideal conditions, cows lie down for approximately 14 hours per day. During that time, they sleep for only 30 minutes. When the resting surface is not sufficiently comfortable, cows will reduce their rest time.