Category Archives: Newton

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

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

Yet more pendulums

Posted on 24/06/2011 by dougaj4

Following Dynamically Defined Dancing Pendulums, another three versions of the dancing pendulum theme.  First a POV-RAY version by PM 2Ring, complete with reflections and shadows: POV-Ray Pendulums (click to open in a new window) and an interactive Javascript version: Javascript pendulums by PM2Ring (click … Continue reading →

Posted in Animation, Excel, Newton, Ray Tracing | Tagged , , , , | 1 Comment

Dynamic Maps

Posted on 15/06/2011 by dougaj4

Some sites providing information about the world in the form of regularly updated maps: NASA Earth Observatory Includes regularly updated satellite images and maps of satellite obeservations: USGS Earthquake Maps: Planefinder: Locate planes equipped with satellite identification equipment, including flight … Continue reading →

Posted in Newton | Tagged , , , , | 1 Comment

Dynamically Defined Dancing Pendulums

Posted on 30/05/2011 by dougaj4

Following the previous post, I have re-created the animation using a non-linear dynamic analysis inside Strand7, rather than by feeding in the positions of each ball at each time step.  The input using this approach is much simpler; just set … Continue reading →

Posted in Finite Element Analysis, Newton | Tagged , , | 2 Comments