The application of the tendency of electrical conductors to increase their electrical resistance with rising temperature was first described by Sir William Siemens at the Bakerian Lecture of 1871 before the Royal Society of Great Britain. The necessary methods of construction were established by Callendar, Griffiths, Holborn and Wein between 1885 and 1900.
Resistance thermometer was invented by Calender-Van Duesen
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galileo invented it
David Phillips invented the first and best infrared thermometer which to your question is the smallest thermometer therefore the answer is DAVID PHILLIPS;P☻☺☻☺
Various people have credited the invention of the thermometer but the thermometer was not a single invention, however, but a development. Related Link:http://en.wikipedia.org/wiki/Thermometer
Resistance thermometer was invented by Calender-Van Duesen
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What is the physical properties of a resistance thermometer
the thermometer was invented in 1708 .
What country was the Thermometer invented in
It is a thermometer using the platinum wire as sensor (resistance thermometer); the resistance of the wire is proportional to the temperature. This type of thermometer is used under 600 0C.
he invented the thermometer in year 1593
it was more than one person who invented this thermometer
In 1714, Gabriel Fahrenheit invented the first mercury thermometer.
There is an ear thermometer?
platinum resistance thermometer
The mercury thermometer was invented Daniel Gabriel Fahrenheit in 1714.