Patterning and periodic structures are very important in physics. This led to a tremendous amount of work on learning what shapes can tile an area or fill a volume. It was found that these shapes must ...

Follow this author to personalize your feed and get instant alerts. WHY FOLLOW? Update your preferences in Account Settings Personalized Content Follow this author to personalize your feed and get ...

Thousands of medieval Islamic tombs in eastern Sudan were arranged in hard-to-detect patterns, with sacred "parent" tombs hosting subclusters of emanating burials, according to archaeologists who ...

The tombs in eastern Sudan were spaced out in a way that the researchers could not easily interpret, until they found a model for studying patterns of stars and galaxies. Thousands of Islamic tombs ...