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.
A: Cows lie down to ruminate, a process that increases their milk production. Cows can lie down for up to 14 hours a day, although only a half an hour of that time is spent sleeping. Each resting period lasts between 30 minutes and three hours.