Scientists have discovered that a type of hard mineral called zeolite can provide a high rate of gas flow in a micro-scale gas pump. Because the pump is based simply on temperature differences and has no moving parts, it could provide reliable and precise control of gas flow for a variety of applications, such as gas-sensing breath analyzers and warfare agent detectors. Mechanical engineers Naveen Gupta and Yogesh Gianchandani from the University of Michigan have published their study. (source: physorg.com)
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