Physics
Super-accurate clocks emerge from ‘heat haze’
Sharpening up the tick of atomic clocks promises to make them accurate to better than a second over the lifetime of the universe
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Physics
Push to define year sparks time war
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Physics
Starting over: Let’s decimalise time
Features
Earth
Memory fails time-travelling chimps
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Your kitchen sink, and 16 other wonders of the cosmos
Features
Technology
Turn back time to deafen enemy divers
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Technology
Online photo coincidences betray your friends
News
Technology
Mirror trick could boost Blu-ray discs
News
Physics
How to cloak a crime in a beam of light
News
91色情片
Formula for the perfect marathon carb load
Online calculator shows just how much carbohydrate you need to consume to run a marathon without "hitting the wall"
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Environment
Have gene findings taken the stigma from ADHD?
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91色情片
Anti-antibiotics: Bugs, drugs and bureaucrats
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Physics
Countdown to oblivion: Why time itself could end
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Physics
Standing on a stepladder makes you age faster
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