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Tree of Life Project: Annelida (segmented worms)
grouping that dates back to Cuvier (1817). The homology of this segmentation has been questioned recently, with arthropods now viewed by many as closer to taxa such as Nematoda (Aguinaldo et al., 1997). This suggests that the form of segmentation seen in annelids m...
Science NetLinks: Art Algorithms
Sapiro and his colleagues have developed mathematical algorithms to fill in holes, scratches, and creases in damaged masterpieces. He says they developed the math by watching conservators at the Minneapolis Institute of Arts. Sapiro: Let's say that part of a bridge is missing—th...
Color Recognition
that the detector sees one color at a time. The image in each of these colors is transmitted to Earth as a series of binary numbers. Image processing computers on Earth combine the data to reconstruct a multi-colored image. Telescopes also use filters that p...
Order of Operations
There is no particular significance in the use of square brackets (the "[" and "]" above) instead of parentheses. Brackets and curly-braces (the "{" and "}" characters) are used when there are nested parentheses, as an aid to keeping track of...
The Pixel Pro
right now might be the battery issue. Digital cameras just eat through batteries [whereas] film cameras can go forever on a lithium battery. Another [potential problem] is that people will make a cheap print of an image at home [instead of using] archival ink or paper,...
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