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Tar
Latest Articles & Videos
The Longest-Running Scientific Experiment -
The world's longest-running scientific experiment is about to drop into the headlines. For over 80 years, two physicists at the University of Queensland have been standing guard over the...
Tar Shrank Heads of Native Californians? -
A long-term health decline—including a gradual shrinking—among prehistoric Indians in California may be linked to their everyday use of tar, which served as "superglue,"...