Editing Thermistor (section)

==History==
The first NTC thermistor was discovered in 1833 by [[Michael Faraday]], who reported on the semiconducting behavior of [[silver sulfide]]. Faraday noticed that the resistance of silver sulfide decreased dramatically as temperature increased. This was also the first documented observation of a [[semiconductor|semiconducting material]].<ref name=CHM-semicon>{{cite web|title=1833 - First Semiconductor Effect is Recorded|url=http://www.computerhistory.org/semiconductor/timeline/1833-first.html|website=Computer History Museum|access-date=24 June 2014}}</ref>

Because early thermistors were difficult to produce and applications for the technology were limited, commercial production of thermistors did not begin until the 1930s.<ref>{{cite book |first=Thomas |last=McGee |year=1988 |title=Principles and Methods of Temperature Measurement |chapter=Chapter 9 |page=203 |publisher=John Wiley & Sons |isbn=9780471627678 |chapter-url=https://books.google.com/books?id=qfmS7g4JzjwC&pg=PA203}}</ref> A commercially viable thermistor was invented by [[Samuel Ruben]] in 1930.<ref>{{cite book |title=Biomedical Sensors |editor=Jones, Deric P. |year=2009 |publisher=Momentum Press |page=12|isbn=9781606500569 | url=https://books.google.com/books?id=7cI83YOIUTkC&q=Samuel+Ruben+and+Thermistor&pg=PA12}}</ref>