Category Archives: Animation

Building dances to an earthquake’s beat

Posted on May 28, 2020 by dougaj4

Adam Pascale from the Seismology Research Centre recently shared this animation (click on controls bottom right for High Quality and Full Screen views): … it’s from a building in the Philippines about 130km (hypocentral distance) from a magnitude 6.1 earthquake … Continue reading →

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Dancing Pendulums Revisited

Posted on April 12, 2020 by dougaj4

I have previously posted on Dynamically Defined Dancing Pendulums, using the Strand7 FEA program to generate the motion of a series of pendulums of varying length.  I have now updated that video using the latest Beta version of the program (Rel … Continue reading →

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Arcs and arc-splines

Posted on August 17, 2018 by dougaj4

I have added two user defined functions (UDFs) to the IP2 spreadsheet to generate coordinates for a single  arc, or a series of arcs connected (if necessary) by straight lines.  The new version may be downloaded from: IP2.zip As an example … Continue reading →

Posted in Animation, Charts, Charts, Coordinate Geometry, Drawing, Excel, Maths, UDFs, VBA | Tagged , , , , , , | 1 Comment

A Loopy Link (and three more)

Posted on August 23, 2015 by dougaj4

For some reason Doug Glancy’s Excel Blog has escaped my attention up till now, but having a browse today, I discovered this loopy animation: which would not have been out of place in Douglas Hofstadter’s “I am a Strange Loop” I really … Continue reading →

Posted in Animation, Computing - general, Excel, Maths, Newton, VBA | Tagged , , , , , | 2 Comments

Two viewers

Posted on December 17, 2013 by dougaj4

I have previously looked at using Excel for generation of images from data listing  3D coordinates of points and lists of connections (see  https://newtonexcelbach.wordpress.com/2012/09/27/daily-download-11-perspective-projection/ for instance), but this approach is limited in what can be done: It will only generate a “wire-frame” … Continue reading →

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