Sputnik-1 Telemetry Signal (audio)
Why the open web links it
Recreation of the original radio signal from the first artificial satellite, Sputnik 1.
Linked by 7 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including wikidot.com, popsci.com, babylonlurker.dk, como.vn, lareopage.com.