By combining the best of two different distance measurement approaches with a super-accurate technology called an optical frequency comb, researchers at the National Institute of Standards and Technology…
DAYTON, OH – SICK STEGMANN, INC. introduces SEK/SEL37 Capacitive Motor Feedback Systems. Just 36mm in diameter, these compact motor feedback systems with HIPERFACE® interface are available in singleturn…
David Herres is the owner and operator of a residential and commercial construction company. He obtained a Journeyman Electrician’s License in 1975, and has certificates in welding and wetland delineation, along with experience with elevators. Beginning in 2001, Mr. Herres has focused primarily on electrical work, upgrading his license to Master status. In 2011, Mr. Herres completed a 425-page book with 45 photos, titled 2011 National
Electrical Code Chapter By Chapter. It was published by McGraw-Hill, released in 2010. He completed a second McGraw-Hill book, Troubleshooting and Repairing
Commercial Electrical Equipment. It was released in 2011. Mr. Herres completed a third McGraw-Hill book, The Electrician’s Trade Demystified. It was released in 2013.His fourth McGraw-Hill book, Homeowner’s DIY Guide to Electrical Wiring, was released the following year.
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