News
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TechTechnique senses damage before it hurts
A new technique for automatically detecting damage to aircraft, buildings, and other structures may lead to practical damage-monitoring systems by reducing false alarms that make today's laboratory prototypes unsuitable for real-world use.
By Peter Weiss -
AnimalsBirds with a criminal past hide food well
Scrub jays that have stolen food from other bird's caches hide their own with extra care.
By Susan Milius -
Health & MedicineFragile X protein reveals its RNA partners
The master gene behind fragile X syndrome—the most common inherited form of mental retardation—encodes a protein that binds to strands of messenger RNA.
By John Travis -
EarthRipples Spread Wide from Ground Zero
Seismic vibrations produced by the collapse of the twin towers of the World Trade Center in lower Manhattan were recorded by seismometers scattered across the Northeast, some more than 425 kilometers away.