Curated OER
Sirtf
View the entire spectrum of electromagnetic radiation and get information on telescopes especially designed to view different wavelengths of the spectrum.
Curated OER
Unidentified Woman and Edward Dorris Mc Alister (B. 1901)
An unidentified woman and Edward Dorris McAlister (b. 1901) are shown working at the Smithsonian Institution's Division of Radiation and Organisms in Cambridge, Massachusetts. The apparatus shown was being used to measure the strength of...