Feature
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The Body Electric
An electric field inside an embryo may tell it whether to place an internal organ on its left or right side.
- Health & Medicine
To Your Health?
Doctors are divided on whether the value of screening the torso with X-rays to find symptomless disease outweighs the costs.
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- Earth
The Making of a Grand Canyon
Carving this beloved hole in the ground may not have been such a long-term project.
- Tech
Memory Enhancers
Engineers take aim at increasing the density of data storage on magnetic media.
