Author Archives: dougaj4

ELASTIC SOLUTIONS FOR SOIL AND ROCK MECHANICS

Found on the Web: Edit 26 Feb 2023:  Link no longer active ELASTIC SOLUTIONS FOR SOIL AND ROCK MECHANICS “Professor Harry Poulos, Emeritus Professor from the University of Sydney and a Senior Principal Consultant with Coffey & Partners, has graciously … Continue reading →

Posted in Newton | Tagged , , , | 3 Comments

ImageMagick – Update and add IrfanView link

The picture indexing spreadsheet presented in the previous post has been updated: Comments can now be added adjacent to the file names, and these will be copied along with the Exif data The routine to copy the exif data to … Continue reading →

Posted in Drawing, Excel, VBA | Tagged , , , , , | 4 Comments

ImageMagick and Excel

Back from my holidays, with a hard disk full of holiday snaps, and looking for a program to extract the image data saved on the camera, and add comments.  Not liking the offerings provided with the cameras, or any of … Continue reading →

Posted in Drawing, Excel, VBA | Tagged , , , | 9 Comments

The Willoughby Choir in Austria

The wonderful Willoughby Symphony Choir give an impromptu performance of Motzart’s Ave Verum at the Dom Cathedral in Salzburg.  Use headphones or good external speakers to get the full effect!

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Will it Fall Over?

Is the arch in the picture below stable, or has it been created in Photoshop, or perhaps with the assistance of some glue or external straps? A simple analysis suggests that tension will be generated at the bottom of the … Continue reading →

Posted in Arch structures, Finite Element Analysis, Newton, Ray Tracing | Tagged , | 2 Comments