Body & Brain

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fizzy chemical

BUBBLE POWER  A fizzing chemical leaves a jet of bubbles in its wake as it races through a liquid. Such bubbles could propel drugs into wounds to stop blood loss. 

sperm and egg

Blocking a newly identified protein in sperm tails stops sperm from penetrating eggs, and could be the key for developing male contraceptives.

Brain mosaic artwork

IN THE MIX  The brain is a mosaic of cells, as illustrated in this artwork. A recent study suggests that individual neurons all operate from different genetic blueprints. 

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