FAHRENHEIT
Gabriel Fahrenheit was born in Danzig, now Gdansk, Poland.
Gabriel Daniel Fahrenheit (1686-1736) went to Holland at an early age to study physics and
instrument making. After completing his studies, he settled there as a maker of
meteorological instruments and spent a great deal of his time working with
thermometer, trying to improve their standard. In 1709, he developed the
alcohol-filled thermometer which he made more accurate five years later by
replacing the alcohol with mercury.
Fahrenheit also advised a new
temperature scale based on fixed points that he had observed: the temperature
of melting ice at 32 Fahrenheit and the normal temperature of the human body at
96 F (later covered to 98.6 F). He found that water boiled at 212 F according
to his scale and this later became the fixed upper point of the Fahrenheit
thermometer. The Fahrenheit temperature scale was in common use in English
speaking countries for many years until 1960s. Most of these countries with
this exception of the United
States have now changed to the more
convenient and widespread Celsius (centigrade scale).
(Adapted from
encyclopedia)
Use your
dictionary to find the meaning of these words.
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A.
Answer these
questions correctly!
1.
Who
found Fahrenheit thermometer?
2.
Where
was Fahrenheit born?
3.
What
subject did he study in Holland?
4.
What
did he do as a meteorological instrument?
5.
When
did he develop the alcohol-filled thermometer?
6.
How
did he make thermometer more accurate five years later?
7.
What
point is the temperature of melting ice?
8.
What
point is the temperature of boiled water?
9.
Where
was the Fahrenheit temperature scale used commonly?
10.
Why
have most English – Speaking countries with the exception of the United States
changed the Fahrenheit temperature to Celsius?
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