Author Archives: dougaj4

Buckling of Tubes – 2

Posted on 06/07/2011 by dougaj4

Following on from yesterday’s post, today we’ll look at the buckling of the cylindrical tubes: The tube in this analysis was defined to have a small (0.01 mm) asymmetric bulge at mid height, to initiate buckling.  The video shows that … Continue reading →

Posted in Newton | Tagged , , , | Leave a comment

Buckling of Tubes

Posted on 05/07/2011 by dougaj4

The video here The Surfing Scientist shows a rough and ready experiment demonstrating the superior strength under axial load of cylindrical tubes, compared with square tubes (skip to 1:30 if you are not interested in the chat). The conclusion about … Continue reading →

Posted in Finite Element Analysis, Newton | Tagged , , , , | 4 Comments

The Rough Island Band

Posted on 29/06/2011 by dougaj4

Some more from John Elliot (who appeared under the name “the little unsaid” in the previous post), here performing with an aptly named group from the Scilly Isles called The Rough Island Band.  First performing Paul Simon’s “Call me Al”, … Continue reading →

Posted in Bach | Tagged , , | 1 Comment

Fine as a Bee’s wing

Posted on 26/06/2011 by dougaj4

Beeswing is song by Richard Thompson, said to be about, or at least inspired by Anne Briggs.  Here is what the man himself says about it: “RICHARD THOMPSON: I wrote the song Beeswing kind of about her. There was a … Continue reading →

Posted in Bach | Tagged , , , | 3 Comments

Rotating Hypercubes

Posted on 25/06/2011 by dougaj4

The discussion of dancing pendulums in javascript at SSSF led onto Rotating Hypercubes, which resulted in this javascript animation by forum regular mollwollfumble: 4D Rotations (click to view in a new window, right click to download javascript file) See the SSSF thread for discussion on … Continue reading →

Posted in Animation, Maths, Newton | Tagged , , , | 5 Comments