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Tag archives for Observational Astronomy
Before Telescopes A History of Astronomy series by John Dillon. Exploring what early astronomers learned without telescopes—just sharp eyes and sharp …5450
This video is sponsored by XE.com Streamed live on Oct 7, 2013 Sometimes you can do science by watching patiently, and sometimes you’ve just got to get …2921
A brief overview of some of the basic properties of light including the particle and wave nature of light, wavelength, frequency, and the spectrum of light.737