{"ok":true,"trend":{"id":528757,"platform":"hn","region":"global","key":"bologna bottle","title":"Bologna Bottle","url":"https://en.wikipedia.org/wiki/Bologna_bottle","first_seen":"2026-09-30T21:16:05.352165Z","last_seen":"2026-10-01T21:55:15.008787Z","last_rank":9,"peak_rank":7,"last_volume":20,"peak_volume":20,"seen_count":19,"score":73.71,"category_hint":"biology","section":"science","category":"biology","summary":"A Bologna bottle is a glass bottle with unusual properties: it can withstand being filled with water or used as a hammer, yet a small drop of material inside makes it shatter instantly. The glass is rapidly cooled during manufacture, leaving surface compression that holds it together until disturbed. It is often cited as a classic demonstration of tempered glass behaviour.","why":"The odd physics of a bottle that can hammer nails yet shatter from a small internal impact makes it a popular curiosity to share and discuss.","tone":"neutral","entities":["Bologna","Bologna bottle"],"summarized_at":"2026-10-01T21:23:33.039811Z","meta":{"via":"scan","lang":"en","link":"https://en.wikipedia.org/wiki/Bologna_bottle","term":"biology","comments":0},"nw":null,"promo":null,"kind":null,"importance":null,"hidden":false,"hide_reason":null,"judged_at":null,"title_en":"What is a Bologna bottle?","section_name":"Science","category_name":"Biology","timeline":[{"captured_at":"2026-09-30T21:16:05.352165Z","rank":10,"volume":9},{"captured_at":"2026-09-30T22:38:05.276344Z","rank":8,"volume":10},{"captured_at":"2026-10-01T00:00:19.914405Z","rank":9,"volume":12},{"captured_at":"2026-10-01T01:22:05.690519Z","rank":8,"volume":17},{"captured_at":"2026-10-01T02:44:05.673617Z","rank":7,"volume":18},{"captured_at":"2026-10-01T04:06:06.527256Z","rank":7,"volume":20},{"captured_at":"2026-10-01T05:28:46.090258Z","rank":7,"volume":20},{"captured_at":"2026-10-01T06:50:46.033290Z","rank":7,"volume":20},{"captured_at":"2026-10-01T08:13:11.709206Z","rank":7,"volume":20},{"captured_at":"2026-10-01T09:35:25.363971Z","rank":7,"volume":20},{"captured_at":"2026-10-01T10:57:25.804627Z","rank":7,"volume":20},{"captured_at":"2026-10-01T12:19:49.858187Z","rank":8,"volume":20},{"captured_at":"2026-10-01T13:42:10.237064Z","rank":8,"volume":20},{"captured_at":"2026-10-01T15:04:10.257142Z","rank":9,"volume":20},{"captured_at":"2026-10-01T16:26:10.643065Z","rank":9,"volume":20},{"captured_at":"2026-10-01T17:48:10.475084Z","rank":9,"volume":20},{"captured_at":"2026-10-01T19:10:32.860431Z","rank":9,"volume":20},{"captured_at":"2026-10-01T20:33:14.727928Z","rank":9,"volume":20},{"captured_at":"2026-10-01T21:55:15.008787Z","rank":9,"volume":20}],"posts":[{"platform":"hn","url":"https://news.ycombinator.com/item?id=49913331","author":"_josh_meyer_","title":"Bologna Bottle","snippet":null,"posted_at":"2026-09-30T19:42:24Z","likes":20}],"elsewhere":[],"window":"7d"}}