Joseph Mazur: The Clock Mirage review – brief histories of time
How planets, people and proteins count the days and years
The Greek philosopher Zeno’s paradoxes, which have plagued thinkers for around 2500 years, tell us that super-speedy Achilles can never outrun the tortoise and that an arrow in flight must always occupy a fixed position at intervals of time – and so can never hit its target. My introduction to these favourite brain-tanglers came when, as an easily overawed teenager, I went to see Tom Stoppard’s play Jumpers and learned that, thanks to that arrested arrow, “Saint Sebastian died of fright”.