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July-August 2007

On the Cover

July-August 2007 Volume 95, Number 4

Perched high above the plains of the East African tropics are the towering ice cliffs that cap Kilimanjaro, Africa's highest peak. The ice cap's area has shrunk almost 90 percent over the past century, a fact sometimes cited as an example of how global warming is affecting glaciers. ...


FEATURE ARTICLES

The Shrinking Glaciers of Kilimanjaro: Can Global Warming Be Blamed?

Phillip W. Mote, Georg Kaser

The Kibo ice cap, a "poster child" of global climate change, is being starved of snowfall and depleted by solar radiation


Feel the Burn *

Gina M. Story, Lillian Cruz-Orengo

The linked sensations of temperature and pain come from a family of membrane proteins that can tell neurons to fire when heated or hot-peppered


Cassini: The First One Thousand Days

Carolyn C. Porco

The spacecraft's journey in orbit around this ringed world has provided startling discoveries and unprecedented views of Saturn's atmosphere, rings and moons, with more surprises doubtless still to come


Kelvin, Perry and the Age of the Earth *

Philip C. England, Peter Molnar, Frank M. Richter

Had scientists better appreciated one of Kelvin's contemporary critics, the theory of continental drift might have been accepted decades earlier


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

America Plugs In

David E. Nye

A review of The Grid: A Journey through the Heart of Our Electrified World, by Phillip F. Schewe. The author provides a useful historical overview that presents electrification as a tool that has helped our species flourish

See all book reviews for this issue.


DEPARTMENTS

COMPUTING SCIENCE

How Many Ways Can You Spell V1@gra?

Brian Hayes

Spam mutates, and the Internet community mounts an immune response

MACROSCOPE

Evolution, Religion and Free Will

Gregory W. Graffin, William B. Provine

The most eminent evolutionary scientists have surprising views on how religion relates to evolution

SIGHTINGS

Boom!

Felice Frankel

Rendering computer simulations of explosions

MARGINALIA

Legally Sweet

Roald Hoffmann

Conflict over the essences of sweeteners and olive oils brings chemistry into the courtroom

ENGINEERING

What's In a Name Tag? *

Henry Petroski

Conveying essential information in a clear, attractive way is a classic design problem

SCIENCE OBSERVER

Coal Futures

David Schneider

Will this energy standby truly last for centuries—or just decades?

The Pump Don't Work

David Schoonmaker

"Water, water, every where, Nor any drop to drink." —Samuel Taylor Coleridge

IN THE NEWS

LETTERS TO THE EDITOR

A Tale of Tails

Gleaning the Cube

The Body Electric

Bright Lights, Big City

True Reflections

SIGMA XI TODAY (PDF)


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