LifeBrain circuits run their own clocks How fast neurons work seems to determine how we perceive time, and could hint at how things go wrong in stressful situations ¿ìè¶ÌÊÓÆµ
PhysicsAbout time: The world's most accurate clock The latest atomic clocks are fine-tuned to lose only a few seconds within the lifespan of the universe, says Richard WebbFeatures