Author Archives: dougaj4

High Speed Blog …

Posted on 07/06/2011 by dougaj4

… brought to you via Smurf on Spreadsheets If you want your spreadsheets to go faster, Charles Williams is the man to tell you how to do it.  Charles has recently started a blog on the subject: FastExcel Well worth … Continue reading →

Posted in Excel, VBA | Tagged , , | Leave a comment

Jaqui Mcshee

Posted on 01/06/2011 by dougaj4

Usually when I’m searching YouTube to see what new old stuff has come up I type in Jansch or Renbourn or Thompson, but today just for a change I typed Mcshee, and this is what came up: which lead to: … Continue reading →

Posted in Bach | Tagged , , , | 4 Comments

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

Dancing Pendulums

Posted on 25/05/2011 by dougaj4

This animation was produced in response to a video of real pendulums performing similar tricks: Not having an animation program I thought I’d use the finite element program Strand7.  Modelling the pendulums was easy, just 15 beam elements with a … Continue reading →

Posted in Animation, Excel, Finite Element Analysis, Newton | Tagged , , , | 5 Comments

Android apps

Posted on 19/05/2011 by dougaj4

Following yesterday’s post about my new toy, this one is about some of the applications to make it go. It will be fairly brief because I haven’t had a lot of time to explore, but the main aim is to … Continue reading →

Posted in Computing - general | Tagged | 6 Comments