News
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AnthropologyUntangling Ancient Roots: Earliest hominid shows new, improved face
New fossil finds and a digitally reconstructed skull bolster the claim that the oldest known member of the human evolutionary family lived in central Africa between 6 million and 7 million years ago.
By Bruce Bower -
PhysicsLone protein molecule could tip this scale
A scale-on-a-chip capable of weighing individual, biologically active proteins took a step closer to reality as a minuscule, vibrating bridge detected the mass of a mere 30 xenon atoms.
By Peter Weiss -
PhysicsTense encounters drive a nanomotor
Exploiting the relative strength of surface tension forces in the world of tiny objects, a novel type of nanomotor creates a powerful thrust each time molten metal droplets merge.