Results for "Scientific apparatus and instruments"

     
    Showing results 1 - 3 of 3 for Scientific apparatus and instruments
    1. Blog Post

      The Smithsonian’s First Radiometers

      • Date: April 25, 2019
      • Description: When curators at the Smithsonian National Museum of American History looked at seven radiometers in storage, they learned the instruments had been at the Smithsonian for nearly one hundred fifty years.

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    3. Hypsometer sketch featured in a book.

      Joseph Henry Hypes Hypsometers

      • Date: October 29, 2019
      • Description: Although initially skeptical about the effectiveness of the hypsometer, Secretary Joseph Henry soon recognized the value of the instrument, which he discovered from his colleagues in the scientific field.

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    5. 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 - 3 of 3 for Scientific apparatus and instruments