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.
In general, the average healthy adult needs 7 to 9 hours of sleep per night. Experiments have demonstrated that the average amount of sleep needed to avoid detrimental effects on daytime function is about 8 hours and 10 minutes. It is recommended that adults beyond age 65 may need less sleep, averaging 7 to 8 hours instead. This normal distribution of sleep needs in a population is a bell-shaped curve. Just like height, weight, intelligence, and other factors: there are people at the extremes and you may not fit the average..