素粒子論1

Round-10 hunt: picked; channel-level screens (sellers/exam/re-upload/devotional/vendor/events) and provenance check passed; strict per-title check + final strict pass; oEmbed verified.

A 48-minute video from 小林チャンネル: “素粒子論1”.

Video by 小林チャンネル, played through YouTube's embedded player.