Feature
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EarthPower Harvests
Farmers are finding that commercial wind power is the best new commodity to come along in years, one that can offer substantial year-round income.
By Janet Raloff -
Sticky Situations
Bacteria find strength in numbers as members of huge, mucous-covered communities called biofilms that can stall, equip, and initiate fierce infections.
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EarthThe Silence of the Bams
If a nuclear explosion were set off in a cavity of the right size and shape, even a moderate-sized nuclear bomb might appear at long distances to be no bigger than a routine explosion used in mining.
By Sid Perkins -
Telltale Heart
Genetics is revealing the first steps in building a heart—the organ that is first to develop, subject to the most birth defects, and difficult to heal when damaged later in life.
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Faces of Perception
Scientists who study face perception currently disagree strongly over whether newborn babies innately know what human faces look like and whether certain brain areas are solely responsible for distinguishing one face from another.
By Bruce Bower -
TechDances with Robots
Soldiers, rescue workers, and others may attain superhuman strength, speed, and endurance as a result of a new military program to develop powered robotic exoskeletons contoured to a person's body.
By Peter Weiss -
ChemistryPerfecting Porosity
Researchers are designing novel porous materials that could clean up toxins, store gases, or catalyze difficult chemical reactions.
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AstronomyAn Illuminating Journey
Astronomers are beginning to use the cosmic microwave background, the remnant glow from the Big Bang, in a dramatically different way: Instead of treating it as a snapshot of the early universe, researchers are proposing to employ the radiation as a flashlight that probes the evolution of structure in the universe over its entire 13-billion-year history.
By Ron Cowen -
Health & MedicineComing to Terms with Death
Some newly recognized forms of cell death might be harnessed to aid people with cancer and other serious diseases.
By Janet Raloff -
MathSurprisingly Square
Mathematicians take a fresh look at expressing numbers as the sums of squares.
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PhysicsPitching Science
A new computer model of baseball pitching helps give pitching robots humanlike abilities and may have enabled engineers to solve a half-century-old puzzle of baseball science.
By Peter Weiss -
PaleontologyBeyond Bones
The forensic analysis of trace fossils such as footprints, nests, burrows, and even coprolites—fossilized feces—reveal subtle clues about ancient species, their behavior, and their environment.
By Sid Perkins