Sneezes and Coughs Create Gas Clouds
(Ivanhoe Newswire) – A gas cloud made up of small droplets from a sneeze or cough can travel five to 200 times further than previously thought, according to a new study from MIT.
Researchers used high-speed cameras, lab simulations, and mathematical models to examine how droplets from a sneeze or cough move in the air. Previously it was thought larger droplets would go farther than smaller droplets, but the new research has found the opposite. Instead, smaller droplets are connected in the gas cloud, which can move five to 200 times further than previously believed. Researchers hope their findings can help architects and engineers redesign hospitals, offices, and air circulation on planes.
For more information, go to: http://newsoffice.mit.edu/2014/coughs-and-sneezes-float-farther-you-think
SOURCE: Journal of Fluid Mechanics, April 2014
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