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The “agricomb,” an optical frequency comb developed by researchers from the National Institute of Standards and Technology (NIST), is able to measure gas emissions from cow eructation and flatulence. The device may as a result aid in the optimization of agricultural processes to reduce the production of heat-trapping greenhouse gases.
NIST researchers, joined by a team from Kansas State University (KSU), set up the portable device adjacent to a beef cattle feedlot. The two-comb system’s laser light component was amplified and filtered to target specific gases, namely methane, ammonia, carbon dioxide, and water vapor, which it was able to measure simultaneously. The gases are identified based on the precise shades…READ MORE