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Wages adjusted for inflation in the US from 1964 to 2004 Unemployment compared to wages. Wage data (e.g. median wages) for different occupations in the US can be found from the US Department of Labor Bureau of Labor Statistics, [5] broken down into subgroups (e.g. marketing managers, financial managers, etc.) [6] by state, [7] metropolitan areas, [8] and gender.
A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula developed by his professor Franciscus Cornelius Donders .
The Ziegler–Nichols tuning method is a heuristic method of tuning a PID controller.It was developed by John G. Ziegler and Nathaniel B. Nichols.It is performed by setting the I (integral) and D (derivative) gains to zero.