https://unknownportal.com/videos/watch/b6acece3-1788-4ba5-b35f-b7151a793276 "Heated drywall eats steel" - A phenomenon never seen in steel structure fires before or since then, but Prof. Sisson of WPI is not surprised by that at all seeing it at WTC steel, asserting that this is expectable in fires - without backing up his reasoning by any data, of course. Also featured is seemingly an early working collapse hypothesis by NIST, vaguely explained here, before its investigators have finally invented by August 2008 the failure sequence of (1) thermal expansion of adjacent beams caused a walk-off failure of a critical girder = (2) = that caused a cascading failure of floors around column 79 (somehow) = (3) = the created void destabilized column 79 up to total failure and that has triggered a domino effect within the core "in a quick succession" (somehow) = (4) = the core column failures overloaded exterior columns, bringing them to failure also (somehow collectively), ignoring and omitting crucial structural features, the visual evidence, observed and measured collapse behavior and common sense. Excerpt taken from TV documentary "Conspiracy Files: 9/11 The Third Tower" (BBC, 2008). Tue, 10 Nov 2026 00:42:43 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://unknownportal.com https://unknownportal.com/lazy-static/avatars/8e1b22ce-9e45-498c-bf3b-05cc77b487a2.gif https://unknownportal.com/videos/watch/b6acece3-1788-4ba5-b35f-b7151a793276 All rights reserved, unless otherwise specified in the terms specified at https://unknownportal.com/about and potential licenses granted by each content's rightholder.