Older Than deck / Events and discoveries
Antiproton
Sources and checks
Checked 2026-11-01: Researched by Codex (two independent publishers, verbatim quotes); every counted quote re-found on its page by the server check (content-verify, or content-verify-pdf for PDFs); scope and plausibility reviewed by Claude (AI build agent). Quotes are short passages from each source; for dates the quote is the year as printed, read in context.
“The team announced this momentous discovery at a press conference on October 19, 1955”American Physical Society — APS News original physics history by Rachel Gaal: source, retrieved 2026-10-28; quote re-found by the server check
“In 1955 he participated with Clyde Wiegand, Emilo Segrè, and Thomas Ypsilantis in the discovery of the antiproton.”Lawrence Berkeley National Laboratory — Physics Division original Owen Chamberlain biography: source, retrieved 2026-10-28; quote re-found by the server check
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