https://unknownportal.com/videos/watch/1dd04634-6e43-483d-84f1-ba25e1357d57 Strange and loud noises before collapse of the South Tower. High-pitch sounds (0:19, 0:42, 1:53) and two low frequency "booms" (0:16 & 0:23) around 9:55 a.m. (see the link below, WCBS Dub1 clip 23) (0:25) Dramatic increase of smoke density at the north face of the South Tower, after the "booms" have occured. No molten substance observable until 1:07. (2:02) Collapse starts with similar low-frequency sound (initiation partially missed). Video Source: 911datasets.org, NIST FOIA 09-42, Release #25, Folder: 42A0115 - G25D25 (WCBS NIST Dub #1 - Damas Home Video). Parts of the audio are overdubbed, taken from Cumulus clips because of the better stereo. (Audio from full tape copy from NIST in R #25 is lacking of right channel sound). Cumulus clips available here for direct download: http://wtcdata.nist.gov/gallery2/v/Collected+Materials/Organized+Photos+and+Video+Clips/VideoClips/WCBS+NIST+Dub+%231_Damas+home+video/?g2_page=3 View from: Church and Reade Streets. Tue, 10 Nov 2026 00:42:54 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/1dd04634-6e43-483d-84f1-ba25e1357d57 All rights reserved, unless otherwise specified in the terms specified at https://unknownportal.com/about and potential licenses granted by each content's rightholder.