Progressive Scanning Traditional Cache

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Hidden : 9/16/2014
Difficulty:
2.5 out of 5
Terrain:
2 out of 5

Size: Size: small (small)

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Geocache Description:


Progressive scanning is a way of displaying, storing, or transmitting moving images in which all the lines of each frame are drawn in sequence.

The system was originally known as "sequential scanning" when it was used in the Baird 240 line television transmissions from Alexandra Palace, United Kingdom in 1936. It was also used in Baird's experimental transmissions using 30 lines in the 1920s.
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Minnesota Geocaching Association

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