Results for "Allegheny Observatory"

     
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    1. Samuel Pierpont Langley and the Personal Equation Problem

      • Date: April 12, 2018
      • Description: The term “personal equation” came into use in the 19th century as scientists found that observers have inherent biases: some anticipate events, and some report events after they have occurred. Recognition of the problem led to a spate of personal equation instruments: some measured biases of this sort, and some reduced the effect of personal errors. Most of these

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    Showing results 1 - 1 of 1 for Allegheny Observatory