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11,984 BCE
Thermoscan human ear
Fraden Corp invented this device. -
1867 BCE
First practical thermometer
An English physician named Sir Thoman Allbutt invented this and it was portable and was used to measure body temperature. -
1848 BCE
Kelvin scale
Lord Kelvin developed the Kelvin scale -
1742 BCE
Centigrade scale
Anders celsius invented the centigrade scale (centigrade scale) -
1724 BCE
Fahrenheit scale
measured temperatures more accurately. -
1714 BCE
mercury thermometer
Daniel Fahrenheit developed the mercury thermometer. -
1709 BCE
alcohol thermometer
In 1709, Daniel Gabriel Fahrenheit invented the alcohol thermometer. -
1612 BCE
Mouth Thermometer
Santorio Santorio invented the first oral thermometer. However it was considered more of an unsuccessful invention due to it's bulkiness.