Looks Dangerous
Do you know how many flights take off at the same time per day? Probably thousands, considering how many airports there are and how many of them probably have the same flight schedules. However, seeing more than one plane take off at the same time from the same airport is incredibly rare.
This isn’t what you think it is. Some guy set up a camera to take 400 pictures of 400 planes taking off at 400 different times of the day and put all of the planes in one image. At first, we thought we were looking at some sort of airplane demolition derby or something.