2026-10-04 PNAS, via Chrome

Langmuir, Irving, "Oscillations in Ionized Gases", Proc. Natl. Acad. Sci. 14(8), 627-637, 15 Aug 1928. DOI 10.1073/pnas.14.8.627 [web] https://www.pnas.org/doi/10.1073/pnas.14.8.627 The landing page was seen (screenshot): the PDF is offered through a "View PDF"/"Download PDF" link, and the open-access marker is shown. Not downloaded (needs the owner's approval). JSTOR also has a copy; the JSTOR snippet reads "In this laboratory we have been studying these phenomena in detail during the last 4-5 years, but the mechanism underlying the ..." [web, Bing snippet]. Bearing: this is Langmuir's own earlier and shorter announcement of the same work, six months before Phys. Rev. 33, 195. [memory, high] It is the paper usually credited with first using "plasma" for the ionized gas. It is priority 1 for claims 1-5 and the history of the term.