Saturday, January 8, 2011

Time Lapse Video - Houston Ship Channel
500 Knots on the Houston Ship Channel

Upper ship channel, anyway. This is a time lapse video I made using a computer to control an old Olympus camera. The gear was set to record a 1024x760 photo at medium resolution every six seconds. To make the video I used Mac's Quicktime Pro program to consolidate and replay the individual photos at 15 frames per second. The camera was placed on an upside down trash can (my wife is painting the house and my small tripod has mysteriously disappeared).
The episode is truncated about half way through the trip due to Flickr's 90sec/150mb video limitations. The second half of the trip is in the next video over
I tried to figure out how fast the ship appears to be going. 1 frame each 6 seconds played at 15 frames per second yields a 90:1 speed ratio. So 6-10 knots should look like 540-900 knots, but it doesn't look that fast. Probably because a ship is so big it throws off your intuition about speed.
The ship is the Champion Star. About 600x106' or 180x32m. So there's about 500' out to the foremast there.
Since it was recorded at 1024x760 I really recommend clicking on the little button on the lower right side of the image above to take advantage of the full screen mode.
P.S. One of the viewers gave me this link to a similar trip through the Panama Canal:

500 Knots Part II
Time lapse video. About 1000 individual photos taken 6 seconds apart and combined with the Quicktime program to be shown at a frame rate of 15 frames per second. Due to the Flickr video limits of 150mb/90 sec I had to split the video. This is the second part from the Fred Hartman Bridge out to sea.

Actually I think we get up to over 900 knots apparent speed in this continuation of the voyage. Lots of ship traffic. The clouds over Galveston were great.

Antarctica Time lapse: A Year on Ice

Time Lapse Video of Guy Driving Across the Country

Panama Canal Timelapse - HD

3D Video: Ship Canal 3D (Time lapse video)

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