https://unknownportal.com/videos/watch/7f2539e7-952a-4c5e-b07a-4f00236a0838 8:24 - Cut to the "pause" of ~6 sec between WTC7 local collapse and total collapse at ~5:20:48pm (+/- 1 sec). East penthouse is already gone. It remains unknown, if the local collapse sequence starting at ~5:20:46pm with east penthouse falling through, was either missed by the camera person or was removed from the video subsequently. 8:27 - Total collapse starts 3 seconds later after the cut, actually at 5:20:52pm (+/- 1 sec), with the downward movement of remaining ~3/2 of core dragging down the rest of roof structures, closely followed by the four perimeter walls. Videographer: Unknown/WNBC-TV or NBC News. View from north. POV = West Broadway near Leonard Street. NIST version with the cleanest audio so far, despite the missing audiotrack on the right channel. The video tape "NIST DV #4" was originally copied by NIST on to a mini-DV cassette from the FEMA BPAT's "NBC Restricted Tape #2" on VHS at the offices of Gilsanz-Murray-Steficek, LLP, structural engineers who have participated both in FEMA and NIST WTC investigations. Link to the enhanced version: https://youtu.be/EWL31llW_78 As-released video quality from DVD Video, created from the mini-DV tape by NIST for FOIA release. Like many full-length videos released by NIST, the entire video tape is lacking of the audiotrack on the right channel. The video has been only deinterlaced and anaphormically corrected from 3:2 DAR (720 x 480 px) to 4:3 DAR (640 x 480 px), and was recompressed by lossless video/audio encoders before the upload on YouTube. DAR = Display Aspect Ratio. Source of DVD Video: 911datasets.org, Folder: International_Center_for_911_Studies_NIST_FOIA [a.k.a. NIST FOIA #09-42], 1st Lv. subfolder: Release_28, 2nd Lv. subfolder: Release 28, 3rd Lv. subfolder: 42A0293 - G27D23, 4th Lv. subfolder: VIDEO_TS, 4 x DVD video files: VTS_01_1.VOB through VTS_01_4.VOB, Total file size: 3.47 GB. Segment taken from between 00mn:39s.773ms and 09mn:18s.291ms. Tue, 10 Nov 2026 00:42:32 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/7f2539e7-952a-4c5e-b07a-4f00236a0838 All rights reserved, unless otherwise specified in the terms specified at https://unknownportal.com/about and potential licenses granted by each content's rightholder.