Math & Technology

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Egyptian portraits

ANCIENT FACEOFF  Digital analyses of Egyptian portraits dating to more than 2,000 years ago indicate that the same person created all three artworks. Many pigments in the paintings probably came from ancient Greece, which influenced Egyptians’ turn to a modern style of portrait painting.

VIBRATE MODE  A new smartphone app called MyShake can detect nearby earthquakes and may one day provide early warnings of tremors, its creators say. Researchers tested the app using vibrating tables that mimic quakes (shown).

SQUISH  A new, collapsible robot can squeeze into tight spaces like its living inspiration, the American cockroach, Periplaneta americana.

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