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On the Cover

January-February 2000 Volume 88, Number 1

In recent years the production of poultry, eggs and pork has increasingly been conducted on an industrial scale, as illustrated by a four-deck laying house in Pennsylvania. ...


FEATURE ARTICLES

Fishing Down Aquatic Food Webs

Daniel Pauly, Villy Christensen, Rainer Froese, Maria Palomares

Industrial fishing over the past half-century has noticeably depleted the topmost links in aquatic food chains


Fifty Years of Radiocarbon Dating *

R. E. Taylor

This widely applied technique has made major strides since its introduction a half-century ago at the University of Chicago


The Women Scientists of Bologna *

Maria Cieslak-Golonka, Bruno Morten

Eighteenth-century Bologna provided a rare liberal environment in which brilliant women could flourish


Impacts of Industrial Animal Production on Rivers and Estuaries

Michael Mallin

Animal-waste lagoons and sprayfields near aquatic environments may significantly degrade water quality and endanger health


Connecting Materials Science and Music in Steel Drums *

Lawrence Murr, Everaldo Tello

A serendipitous collection of scientific, especially metallurgical, principles created melodic instruments from sawed-off steel barrels


The Galactic Environment of the Sun

Priscilla Frisch

The heliosphere appears to protect the inner solar system from the vagaries of the interstellar medium


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

Chinese Wisdom

Malcolm Sherman

A review of Knowing and Teaching Elementary Mathematics: Teachers' Understanding of Fundamental Mathematics in China and the United States, by Liping Ma.

See all book reviews for this issue.


DEPARTMENTS

COMPUTING SCIENCE

Graph Theory in Practice: Part I

Brian Hayes

Graphing netlike objects—including the World Wide Web

MACROSCOPE

How Much Free Speech for Scientists?

Wolfgang K. H. Panofsky

A brief history of government restraint in the United States

MARGINALIA

Exquisite Control

Roald Hoffmann

Precisely guiding chemical reactions at the molecular level

ENGINEERING

Time-Sensitive Material *

Henry Petroski

Top-10 lists for the new millennium

SCIENCE OBSERVER

Solar Windjamming

David Schneider

Sailing through space on a wind of protons

A Megalith for the Millennium

Dana Mackenzie

The University of Massachusetts commissions a modern Stonehenge

FROM THE PRESIDENT


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