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.
While a cow might spend half the day lying down, she sleeps only a fraction of that time, simply relaxing the rest of the time. Our bovine friends spend around 3.9 hours each day sleeping, which is only 16.4 percent of a 24-hour period. This is half the amount an adult human sleeps each day.