January 9 is the 9th day of the year in the Gregorian Calendar. There are 356 days remaining (357 in leap years).
Holidays and observances
January 8 - January 10 - December 9 - February 9 - Historical anniversaries
... device that works by measuring the voltage produced between conductors placed in hot and cold bodies.
Thermocouples rely on the thermoelectric effect - an ...
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