Subscribe
Subscribe
MY AMERICAN SCIENTIST
LOG IN! REGISTER!
SEARCH
 
Logo IMG
HOME > PAST ISSUE

On the Cover

January-February 2003 Volume 91, Number 1

The light-sensitive portions of rod and cone photoreceptors are shown in a colored scanning electron micrograph. The photoreceptors are the sensory cells in vertebrate retinas; they contain rhodopsin, a protein whose shape changes when struck by packets of light. ...


FEATURE ARTICLES

H2O *

David Goldes

Experiments in black and white


Bayh-Dole Reform and the Progress of Biomedicine *

Arti Rai, Rebecca Eisenberg

Allowing universities to patent the results of government-sponsored research sometimes works against the public interest


Mud, Marine Snow and Coral Reefs *

Eric Wolanski, Robert Richmond, Laurence McCook, Hugh Sweatman

The survival of coral reefs requires integrated watershed-based management activities and marine conservation


How the Retina Works

Helga Kolb

Much of the construction of an image takes place in the retina itself through the use of specialized neural circuits


The Hubble Constant and the Expanding Universe *

Wendy Freedman

A newly refined value of H0, the expansion rate of the universe, may herald a first step toward a new era of "precision" cosmology


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

Mammoth as Mascot

Claudine Cohen

Claudine Cohen's The Fate of the Mammoth reanimates the icon in all its legendary and scientific glory

See all book reviews for this issue.


DEPARTMENTS

COMPUTING SCIENCE

On the Threshold

Brian Hayes

Long a borrower, physics lends a tool to mathematics

MACROSCOPE

Flying and Driving after the September 11 Attacks

Michael Sivak, Michael J. Flannagan

A statistical analysis of the relative risks

MARGINALIA

Why Buy That Theory?

Roald Hoffmann

What elements distinguish a good theory?

ENGINEERING

Framing Hypotheses: A Cautionary Tale *

Henry Petroski

The story of a rodent invasionand its lessons

SCIENCE OBSERVER

Into the Woods

Frank Diller

The American chestnut wages chemical warfare

Current Affairs

David Schneider

Seeking renewable energy sources under the sea

Dark-Matter Heretic

Michael Szpir

Modifying Newton's laws to solve an astrophysical puzzle

LETTERS TO THE EDITOR

Tracking Time

History in Theater

FROM THE PRESIDENT


Subscribe to American Scientist