Popular.Science.March.2008

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  CONTENTS
march ’08
VOLUME 272 #3
features
CONCEPTS & PROTOTYPES
WARSHIPS OF TOMORROW
How a sleek stealth battleship will ferry
robot armies across the seas.
By Christian DeBenedetti
MEET THE NAVY OF THE FUTURE
A check-up on the U.S. Navy’s next fl eet.
By Michael Belfiore
the
P
OP
S
CI RANKING
AMERICA’S 50
GREENEST CITIES
From geyser power in Santa Rosa to tidal
turbines in Manhattan, cities are taking
the lead as our environmental saviors.
In our national ranking, we spotlight
the 50 most innovative in the U.S.
P
OP
S
CI INNOVATOR
YOUR SEWER ON DRUGS
Scientists are drug-testing entire cities, and
all it takes to analyze thousands of people
is one drop of sewage.
By Eric Hagerman
FUTURE TECH: PRIVACY
THE ANONYMITY EXPERIMENT
Trying to live a private life in the
information age, our writer encrypts
e-mail and uses a prepaid cellphone.
But threats lurk everywhere, from
Google searches to yoga studios.
By Catherine Price
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MARCH 2008 POPULAR SCIENCE
03
THIS MONTH’S GUIDE TO INNOVATION AND DISCOVERY
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