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Decreasing muscle temperature results in a substantial decline of muscle performance such that a 10 degree Celsius temperature decrease results in at least a 50% decline in muscle performance. [4] Persons who have fallen into icy water may gradually lose the ability to swim or grasp safety lines due to this effect, although other effects such ...
A shortcut method for degrees Celsius is to count the number of chirps in 8 seconds (N 8) and add 5 (this is fairly accurate between 5 and 30 °C): T C = 5 + N 8 {\displaystyle \,T_{C}=5+N_{8}} The above formulae are expressed in terms of integers to make them easier to remember—they are not intended to be exact.
The concepts of degrees, minutes, and seconds—as they relate to the measure of both angles and time—derive from Babylonian astronomy and time-keeping. Influenced by the Sumerians, the ancient Babylonians divided the Sun's perceived motion across the sky over the course of one full day into 360 degrees.
This is a collection of temperature conversion formulas and comparisons among eight different temperature scales, several of which have long been obsolete.. Temperatures on scales that either do not share a numeric zero or are nonlinearly related cannot correctly be mathematically equated (related using the symbol =), and thus temperatures on different scales are more correctly described as ...
A minimum detectable signal is a signal at the input of a system whose power allows it to be detected over the background electronic noise of the detector system. It can alternately be defined as a signal that produces a signal-to-noise ratio of a given value m at the output.
To achieve the best sensitivity, they must be cooled to a fraction of a degree above absolute zero (typically from 50 mK to 300 mK [9]). Notable examples of bolometers employed in submillimeter astronomy include the Herschel Space Observatory , the James Clerk Maxwell Telescope , and the Stratospheric Observatory for Infrared Astronomy (SOFIA).
Although changes to the mercury's volume are slight — about .018% for each degree Celsius [2] — the small volume of the bore compared to the bulb's volume visually amplifies the change. This design feature results in clearly visible movement of the mercury up or down the scale, enabling precise temperature readings.
An example for which it cannot be used is the conversion between the Celsius scale and the Kelvin scale (or the Fahrenheit scale). Between degrees Celsius and kelvins, there is a constant difference rather than a constant ratio, while between degrees Celsius and degrees Fahrenheit there is neither a constant difference nor a constant ratio.