John August Anderson

7 Aug 1876 – 2 Dec 1959

John August Anderson (August 7, 1876 – December 2, 1959) was an American astronomer who made significant contributions to improving astronomical instruments in the early 20th century, especially diffraction gratings. -Wikipedia

• A method of investigating the Stark effect for metals
• Absorption and emission spectra of neodymium and erbium compounds ..
• Application of Michelson's interferometer method to the measurement of close double stars
• General characteristics of electrically exploded wires
• On the effect of the groove form on the distribution of light by a grating
• Ronchi's method of optical testing
• The spectrum of electrically exploded wires
• The vacuum spark spectrum of calcium
• The wave-length in astronomical interferometer measurements