People people.... This has nothing to do with McAfee's charges. Did anyone notice that a new book will soon be up for sale? What could help more but some publicity to generate interest in an otherwise worn out subject?
On March 1, NIST said it will no longer provide calibration services for mercury thermometers. The cessation of the mercury thermometer calibration program marks the end of an era at NIST, which has provided the service since the doors opened in 1901. In fact NIST itself at one point had a stockpile of more than 8,000 industrial-use mercury thermometers hidden away in drawers."
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How serious about this are you? My jawbone headset works pretty well in noisy environments on one ear but you just can't beat an aviation bluetooth headset for active noise cancellation and two ear sound. See the ones from Lightspeed. I have not tried them but have used other ANR aviation headsets in small airplanes which are so noisy you can't hear yourself shout and they are amazing. I looked around at their website and the Zulu seems to be the bomb for the low low low price of $850. See it at http://www.lightspeedaviation.com/content.cfm/Products/Zulu They have others. Who knows the others might be cheaper. There are also other brands of aviation ANR headsets which support bluetooth. It seems the latest generation of bluetooth chips are quite a bit better for this kind of thing than even a year or so ago. I ride a motorcycle and just tried the Sena SMH10 which integrates into a helmet and it's also impressive how clear and noise free it is + the interface design is very natural and the controls just work.