Optical fibers that can sense the materials around them

In recent years optical fibers have served as sensors to detect changes in temperature, like a thermometer, and pressure, like an artificial nerve. This technique is particularly useful in structures such as bridges and gas ...

Obama admin blocks seismic surveys in Atlantic Ocean

The Obama administration on Friday rejected requests by energy companies to conduct seismic surveys in the Atlantic Ocean to map potential drilling sites for oil and natural gas.

Computer learns to recognize sounds by watching video

In recent years, computers have gotten remarkably good at recognizing speech and images: Think of the dictation software on most cellphones, or the algorithms that automatically identify people in photos posted to Facebook.

Weighing gas with sound and microwaves

NIST scientists have developed a novel method to rapidly and accurately calibrate gas flow meters, such as those used to measure natural gas flowing in pipelines, by applying a fundamental physical principle: When a sound ...

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