Physics
Inside the incredibly slow race to reinvent time
The latest atomic clocks are so staggeringly precise that they are going to redefine the second. The only question now is when
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Gravity
Physics
Why it’s better to fall into a big black hole, and other bizarre facts
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Space
Astronomical time can help us put lockdown into perspective
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Albert Einstein
General relativity
Second law of thermodynamics
Black holes
Physics
Space-time and gravity might be born from the quantum world
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