See the red 三角形, 三角 that the aeros have placed in the cloud. Notice how the 云, 云计算 housing the 三角形, 三角 is much darker than the surrounding clouds. See 更多 at www.youtube.com/aerostockians
This is what the quantity of aeros in the skies looked like last night (Mon24Nov08) when the girls and I attempted to capture the airborne Night Circles on video.
