File:Khan Sheikhoun - AMC 0m19s.jpg


 * Source
 * الشهداء الذين قضوا بقصف قوات النظام بالغازات السامة على مدينة خان شيخون بريف إدلب - Aleppo Media Center
 * (Martyrs who were killed by regime forces bombed with poison gas on the Khan Shaikhoun Brive Idlib)
 * Upload Time (UTC): 14:16:09

How wide is the south wall?
The slats on the south wall are lower on the left as on the right. Assuming the the slats are 4 inch board and 100 mm apart the south wall is 2900 mm high and 2934 mm wide. -- Petri Krohn (talk) 17:15, 30 April 2017 (UTC) At 22 seconds into the video the camera passes by the wall, so that it fills the whole screen with about one slat (100 mm) worth of concrete left over on the left. I count to height of the screen to fit 17 slats. 17 * (1920/1080) = 30.222. The wall could thus be 31 slats wide. 30 slats is a conservative estimate. -- Petri Krohn (talk) 00:11, 1 May 2017 (UTC)
 * The eastern edge of the wall is 186 pixels from the left edge of the image. The corner is 1017 pixels from the left, making the image of the wall 831 pixels wide.
 * Using the marking on the western wall with the graffiti: The bottom of slat 3 is at 1017, 5.5 pixels. The bottom of slat 15 is at 1014, 370.5 pixels. Twelve slats are thus 365 pixels high.
 * A simple calculation says the south wall is at least 27,32 slats wide.
 * Compensating for angle of wall
 * The seam under slat 4 can be seen in spots 229.5, 47.5 and 860, 29.
 * Extrapolation gives points 186, 48.776367962 and 1017, 24.39333862.
 * The seam under slat 15 can be seen in spots 610, 376 and 1017, 378.
 * Extrapolation gives point 186, 378.083538084.
 * The 11 slats are 329.307170122 pixels high on the left and 353.60666138 pixels high on the right. This give a 1st order correction factor of 1.073789742.
 * The south wall is 27,32 + 1.073789742 = 29.335935763 slats wide, using the west wall slats as a unit of measure.
 * Another view