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From Instantaneous to Eternal

The units of time range from the infinitesimally brief to the interminably long.The descriptions given here attempt to convey a sense of this vast chronological span.

Clocking Cultures

What is time? The answer varies from society to society

By Carol Ezzell

Real Time

The pace of living quickens continuously, yet a full understanding of things temporal still eludes us

By Gary Stix

Remembering When

Several brain structures contribute to "mind time," organizing chronologies of remembered events

By Antonio R. Damasio

That Mysterious Flow

From the fixed past to the tangible present to the undecided future, it feels as though time flows inexorably on. But that is an illusion

By Paul Davies

Times of Our Lives

Whether they're counting minutes, months or years, biological clocks help to keep our brains and bodies running on schedule

By Karen Wright

Ultimate Clocks

Atomic clocks are shrinking to microchip size, heading for space--and approaching the limits of useful precision

By W. Wayt Gibbs


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