Скачать или смотреть Bristol Harbour Lock Gates

These are the final lock gates out of Bristol Floating Harbour- to the right is the Avon, a river with a very great tidal range that made the docks hard to make productive use of, until there were lock gates installed, to maintain the water level in the docks at all times. These were in the final stages of having the gates converted to run on an oil hydraulic system, but were managing to handle traffic nonetheless.

This was shot using a point-n-shoot Canon (A530) using the CHDK to work as an intervalometer, taking shots about once every 2 seconds, and stitched together into a video with a combination of Image Magick and ffmpeg.