September 2002
Scientific American Magazine

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Cover; September 2002; by Staff Editor; 1 Page(s)

Table of Contents; September 2002; by Staff Editor; 2 Page(s)

SA Perspectives: The Chronic Complaint; September 2002; by Staff Editor; 1 Page(s)

It's about time

On the Web; September 2002; by Staff Editor; 1 Page(s)

Letters to the Editors; September 2002; by Staff Editor; 2 Page(s)

50, 100 and 150 Years Ago; September 2002; by Staff Editor; 1 Page(s)

Evolving Machines; Dammed Nile; Shaky Stocks

Unsettled Air; September 2002; by Marguerite Holloway; 2 Page(s)

The unknown health effects of the towers' collapse

Staying Open; September 2002; by Daniel G. Dupont; 2 Page(s)

Universities worry about the strain on academic freedom in the face of classified research

After the Fall; September 2002; by Steven Ashley; 2 Page(s)

New thinking to make skyscrapers safer

News Scan Briefs; September 2002; by Zeeya Merali; 1 Page(s)

Dampened Swings; Science to the Rescue; Data Points: Closure

Training for Terror; September 2002; by Marty Klinkenberg; 2 Page(s)

In Canada, U.S. marines find a place to learn how to handle live chemical and biological warfare agents

Radio Space; September 2002; by Wendy M. Grossman; 1 Page(s)

A renegade plan to show that spectrum isn't scarce

The Terminator's Back; September 2002; by Charles Choi; 1 Page(s)

Controversial scheme might prevent transgenic spread

By the Numbers: Affording a Home; September 2002; by Rodger Doyle; 1 Page(s)

What does it take to buy a reasonably priced house?

News Scan Briefs; September 2002; by Philip Yam, JR Minkel; 1 Page(s)

Net Size; Glitch in the Machine; Polio de Novo; www.sciam.com - Brief Bits

Skeptic: Smart People Believe Weird Things; September 2002; by Michael Shermer; 1 Page(s)

Rarely does anyone weigh facts before deciding what to believe

Real Time; September 2002; by Gary Stix; 4 Page(s)

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

That Mysterious Flow; September 2002; by Paul Davies; 6 Page(s)

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

A Hole at the Heart of Physics; September 2002; by George Musser; 2 Page(s)

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

How to Build a Time Machine; September 2002; by Paul Davies; 6 Page(s)

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

From Instantaneous to Eternal; September 2002; by David Labrador; 2 Page(s)

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

Times of Our Lives; September 2002; by Karen Wright; 8 Page(s)

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

Remembering When; September 2002; by Antonio R. Damasio; 8 Page(s)

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

Clocking Cultures; September 2002; by Carol Ezzell; 2 Page(s)

What is time? The answer varies from society to society

A Chronicle of Timekeeping; September 2002; by William J. H. Andrewes; 10 Page(s)

Our conception of time depends on the way we measure it

Ultimate Clocks; September 2002; by W. Wayt Gibbs; 8 Page(s)

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

Voyages: A Promenade with Prosimians; September 2002; by Marguerite Holloway; 2 Page(s)

Visiting lemurs and their next of kin at the Duke Primate Center

Reviews: Amateurs Take On the Universe; September 2002; by Shawn Carlson, Staff Editors; 3 Page(s)

Seeing in the Dark champions the role of amateurs in exploring the cosmos. Also, The Editors Recommend

Puzzling Adventures: Venture Bets; September 2002; by Dennis E. Shasha; 1 Page(s)

Investments and probabilities

Anti Gravity: Einstein's Hot Time; September 2002; by Steve Mirsky; 1 Page(s)

Great theoreticians know that hypothesis must be confirmed with experiment

Ask the Experts; September 2002; by Staff Editor; 1 Page(s)

What exactly is d¿j¿ vu? How can graphite and diamond be so different if they are both composed of pure carbon?

Fuzzy Logic; September 2002; by Roz Chast; 1 Page(s)

An extremely brief history of time