Multiple choice general knowledge Gabriel Daniel Fahrenheit was? A German Physicist Developed the mercury thermometer in 1714 Devised temperature scale All of the above Reveal answer Fill a bubble to check yourself D Correct answer Explanation Gabriel Daniel Fahrenheit (1686-1736) was a German physicist who invented the mercury thermometer in 1714 and devised the temperature scale that bears his name (the Fahrenheit scale). Option D is correct as it encompasses all these facts.