Author Archives: dougaj4

Working with dynamic arrays in Excel

Posted on May 23, 2019

Many of the VBA functions available here return results as arrays, which must be entered by selecting the desired output range, then  pressing Ctrl-Shift-Enter (CSE).  This can be inconvenient (or at least untidy) when the size of the output array varies.  … Continue reading →

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The Barrow Poets

Posted on May 11, 2019

The Barrow Poets  (according to this site) started out selling poems from barrows in the late 1950s, then moved into performing in pubs.  I saw them performing in London, probably in 1972.  In spite of their undoubted originality and creativity, … Continue reading →

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How Reinforced Earth works

Posted on May 8, 2019

“Reinforced Earth” is the name of  a construction system widely used in retaining walls around the World.  Here is a short video demonstrating how the system works, which is both informative and entertaining:

Posted in Newton | Tagged , , , | 1 Comment

RC Design Functions 8_03

Posted on April 30, 2019

The RC Design Functions 8_03 spreadsheet is now available for free download from: RC Design Functions8.zip The main changes are: The NA layer check has been corrected for compression steel in tension The new AS 3600 crack width and curvature … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 9 Comments

The Largest Early World Map …

Posted on April 25, 2019

… is unveiled for the first time: Click image for link to map with pan and zoom: On July 25, 01585, near the end of a century of unprecedented change, four Japanese boys stopped in Milan on their way back … Continue reading →

Posted in Newton | Tagged , | 2 Comments

1952 Vincent Black Lighting

Posted on April 19, 2019

A live performance from Richard Thompson: My favourite comment: “Trying to decide if Suzanne Vega and Louden Wainwright are looking on in awe or thinking “shit we’re next”!”

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3D Frame with zero stiffness hinges

Posted on April 9, 2019

The previous version of 3DFrame allowed for spring releases at beam ends, but if the release stiffness was entered as zero it was treated as a rigid connection for that freedom.  Effectively zero stiffness releases could be modelled by entering … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton | Tagged , , , , , | 3 Comments