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1450 questions in 145 tests. Each test contains 10 questions.
Idiom of the Day
get up the nerve to (do something)
to become brave enough to do something
I tried to get up the nerve to ask my friend about his new job.
Benefits of Elderberry
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Precautions while using Laboratory Thermometers
Selection Criteria for Laboratory Thermometers
The GlobalSpec SpecSearch database allows industrial buys to select laboratory thermometers by type, display options, operating environment, and specialty features. Thermometers may be described as empirical or absolute. Absolute thermometers are calibrated numerically by the thermodynamic absolute temperature scale. Empirical thermometers are not in general necessarily in exact agreement with absolute thermometers as to their numerical scale readings, but to qualify as thermometers at all they must agree with absolute thermometers and with each other in the following way: given any two bodies isolated in their separate respective thermodynamic equilibrium states, all thermometers agree as to which of the two has the higher temperature, or that the two have equal temperatures.