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A Chronicle of Timekeeping

Our conception of time depends on the way we measure it

By William J. H. Andrewes

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.

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

A Hole at the Heart of Physics

Physicists can't seem to find the time--literally. Can philosophers help?

By George Musser
Real Time
The Sciences

Real Time

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

By Gary Stix

Ultimate Clocks

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

By W. Wayt Gibbs

Remembering When

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

By Antonio R. Damasio

Clocking Cultures

What is time? The answer varies from society to society

By Carol Ezzell
How to Build a Time Machine

How to Build a Time Machine

It wouldn't be easy, but it might be possible

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


  • Letters


  • Advances

    Radio Space

  • After the Fall

  • Unsettled Air

  • Training for Terror

  • The Terminator's Back

  • Staying Open

  • Science to the Rescue

  • Dampened Swings

  • Glitch in the Machine

  • Net Size

  • Polio de Novo

  • Recommended

    Amateurs Take On the Universe

  • Skeptic

    Smart People Believe Weird Things

  • Anti Gravity

    Einstein's Hot Time

  • 50, 100 & 150 Years Ago

    Evolving Machines -- Dammed Nile -- Shaky Stocks

  • Perspectives

    The Chronic Complaint

  • In Brief

    Data Points: September 2002

  • Brief Bits: September 2002

  • Puzzling Adventures

    Venture Bets

  • Voyages

    A Promenade with Prosimians

  • By the Numbers

    Affording a Home

  • Departments

    Fuzzy Logic

  • Ask the Experts

    Ask the Experts: September 2002

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