Temperature mensuration is really in-chief to a total length of areas and activities: science, solid research, manufacturing, drug and wander. Many European, Asian and African profession and tourists often go back and forth to the USA and UK. These countries have not adoptive the use of the up to date metrical regulations of activity i.e. the SI arrangement.
The official remnant SI unit of physical property is the Kelvin. A rework of 1K is the aforementioned as 1 magnitude Celsius. As the point Celsius is a convenient, smooth to stick in every - day - enthusiasm metric linear unit unit, so both units are nearly new in collateral. The Kelvin is used by scientists and engineers and the scope Celsius by all and sundry else universal. There are however, two conspicuous exceptions: the USA and UK who normally use the Fahrenheit clamber.
Daniel, Gabriel Fahrenheit, a German physicist was born in 1686 in Gdansk, Poland. The thought of the measuring system for activity temperature changes is accredited to Galileo. Fahrenheit is agreed for inventing the alcoholic beverage and quicksilver thermometers. His physical property degree is supported on affixing 32º for liquescent tine of ice and 212º for the hot thorn of hose under native part force. The rest involving two appendant points is beingness segmented into 180 correspondent environs (the degrees Fahrenheit). The Fahrenheit scale was largely in use by English speaking countries up until 1970.
Travelers to the USA and UK are frequently janus-faced beside the inhibition of how to neatly mortal the physical property in the magnitude Fahrenheit to the fundamental quantity uttered in the degrees Celsius short production a bungle and next to a ample approximation.
The changeover mathematical statement "Fahrenheit to Celsius" is:
ºC = 5/9 (ºF - 32º); read:
"In direct to speak the physical property in the degrees Celsius, I involve to dissension 5 by 9 and the conclusion figure by the fundamental measure in Fahrenheit down by 32º".
Quite awkward, isn't it?
A by a long chalk simpler way to call to mind and easier style to do spiritually is to learn the 4 tailing steps:
ºF→→→ºC : "Subtract 32, break up by 2, add 10% ( or 1/10) of the phenomenon and add 1% of the total".
Let us see how it works:
E.g. 1: 98 ºF (your median thing fundamental quantity) →→→66 →→→33 →→→36.3 →→→36.7 ºC (rounded off to one quantitative leave).
E.g. 2: 102 ºF (your feasible thing fundamental quantity) →→→70→→→35→→→38.5→→→38.9 ºC
(High, pay a call on to the doctor!).
E.g. 3: 68 ºF (pleasant, refreshing open-air fundamental quantity)→→→36→→→18→→→19.8→→→20 ºC
If you in a keen mood, hum these four staircase earlier the travel: "su-di-a-a", "su-di-a-a", "su-di-a-a"...!
Have a nice lose your footing and keep hold of warm!
Wacek
PS.: Have you read my former article: "The Travelers Temperature Tips"?
If so, you will be competent to brainwave the reply to the stalking puzzle:
FORGETFULNESS
A student resolution a tribulation on conveyance of warmth recovered a precise physical property amend. However, he bestowed the answer lacking a unit. As it reversed out, it did not situation whether he gave the fundamental measure in the degrees Fahrenheit or the degrees Celsius. The statement remained the aforementioned. What physical property was it?