This clip is an overhead drone view of the weir (roller sluices and radial/flap gates) in Teddington Lock, on the River Thames. These sluices and radial flap gates control water flowing through them, and help keep the elevation steady in different parts of the river. Peak flow is typically 54.5 billion litres a day, or 12 billion gallons a day. The clip is 52 seconds long, but please feel free to edit it as needed. The drone's flight path was straight and level, ensuring stability so that you can speed the footage up if needed. A bird also flies underneath the drone (from the 15 second mark until the 21 second mark), and captures a key element of wildlife blending in with something beautiful humans have built. I believe that this clip, with its blend of natural beauty and the marvels of human engineering, would be a perfect addition to one of your videos.