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VOLUME 103 | NUMBER 6 | November 2015

Restoring Depth to Leonardo’s Mona Lisa

Claus-Christian Carbon, Vera M. Hesslinger

Was La Gioconda an early model for three-dimensional imaging?

An Ethical Evolution

Jacob Darwin Hamblin

A brief review of Scientists at War: The Ethics of Cold War Weapons Research, by Sarah Bridger

Parsley, Sage, Thermocouple, and Thyme

Eric Schulze

A brief review of The Food Lab: Better Home Cooking Through Science, by J. Kenji López-Alt

Names, Simplified

Henry Reich

A brief review of Thing Explainer: Complicated Stuff in Simple Words, by Randall Munroe

Taking the Long View on Sexism in Science

Pat Shipman

I am one of the many women who exited academic science. Decades later, too many others are still leaving for the same reasons.

Computer Vision and Computer Hallucinations

Brian Hayes

A peek inside an artificial neural network reveals some pretty freaky images.

Tracking the Eyes to Study the Brain

Indre Viskontas

Despite striving for objectivity, scientists bring their subjective experiences to their work. Collaborations with artists show this is not always a bad thing.

A Story of Serration

Sandra J. Ackerman

How did theropods, the meat-eating dinosaurs, develop their distinctive serrated teeth? High-tech microscopy reveals new clues.

From Lowly Paper Clips to Towering Suspension Bridges

Henry Petroski

Over the course of 150 columns for this magazine, the author has uncovered great engineering lessons all around, in places big and small.

Where the Xingu Bends and Will Soon Break

Mark Sabaj Pérez

A hotly contested megadam threatens an incubator for evolutionary diversity in Brazil.

Making the Cut

Fenella Saunders

Japanese paper arts are inspiring materials scientists with new ways to turn flat sheets into functional devices.

Orion's Path to Liftoff

Fenella Saunders

First Person: Nujoud Merancy

Orion's First Test Flight


Katie L. Burke

In this roundup, associate editor Katie L. Burke summarizes notable recent developments in scientific research, selected from reports compiled in the free electronic newsletter Sigma Xi SmartBrief. Online:

Mantis Shrimp Impact

A Fly-By Mission

The Rising Cost of Resources and Global Indicators of Change

Carey W. King

The turn of this century saw the cheapest-ever energy and food combined, and here’s why we may never return to those historic low numbers.

In Defense of Pure Mathematics

Daniel S. Silver

After 75 years, Godfrey Harold Hardy’s A Mathematician’s Apology still fuels debate over pure versus applied mathematics.

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