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The e-Stewards Initiative is an electronics waste recycling standard created by the Basel Action Network . The program and the organization that created it grew out of the concern that electronic waste generated in wealthy countries was being dismantled in poor countries, often by underage workers. The young workers were being exposed to toxic ...
The data below tabulates standard electrode potentials ( E °), in volts relative to the standard hydrogen electrode, at: Absolute partial pressure 101.325 kPa (1.00000 atm; 1.01325 bar) for each gaseous reagent — the convention in most literature data but not the current standard state (100 kPa). The Nernst equation adjusts for general ...
The number e is a mathematical constant approximately equal to 2.71828 that can be characterized in many ways. It is the base of the natural logarithm function. It is the limit of as n tends to infinity, an expression that arises in the computation of compound interest. It is the value at 1 of the (natural) exponential function, commonly ...
Standard tuning (listen) Guitar tunings are the assignment of pitches to the open strings of guitars, including classical guitars, acoustic guitars, and electric guitars. Tunings are described by the particular pitches that are made by notes in Western music. By convention, the notes are ordered and arranged from the lowest-pitched string (i.e ...
Leica Standard chrome (serial number 244297), 1937, front view Leica Standard chrome (serial number 244297), 1937, top view. The Leica Standard, Model E was the fourth version of the original 35 mm Leica camera to be launched from Ernst Leitz in Wetzlar, Germany. The concept was conceived by their employee Oskar Barnack in 1913. Production of ...
where we've approximated the standard deviations, i.e., the uncertainties, of the measurements themselves with the best value for the standard deviation of the population. The mean of these measurements x ¯ {\displaystyle {\bar {x}}} is given by