Peter Dow
@peter-dow-2pfGj0 Member
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Replied #Threads
Analysis of Florida International University pedestrian bridge collapse
Now considering member 2, which survived intact, member 2's "SECTION C-C" - - has 12 x size 8 (diameter 1", area 0.785 sq-in) reinforcing bars and...
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Analysis of Florida International University pedestrian bridge collapse
As I have noted in the next image, W Denney Pate's drawings don't draw a section through member 11 with only 2 P.T. bars, only section...
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Posted #Threads
Analysis of Florida International University pedestrian bridge collapse
<a href="https://en.wikipedia.org/wiki/Florida_International_University_pedestrian_bridge_collapse" target="_blank" rel="nofollow noopener noreferrer">Florida International Univers...
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Replied #Threads
Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
BEWARE BAD LINKS ABOVE! I lost my website hosting in January. I was not "hacked" but the gcehosting administrator seems to have gone out of business...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
#-Link-Snipped-# My trispokedovetile CAD-CAM webpage now offers an (X,Y,Z) option for router cutting using rotary tool paths between spaced out tiles - I've simulated the CNC...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
HOLES! Now #-Link-Snipped-#
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
For Computer-Aided Manufacturing of trispokedovetiles, I'm publishing today my new Javascript web-page - #-Link-Snipped-# - which generates Computer Numerical Control (CNC) code...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
Now to consider the important issue of interlocking trispokedovetiles against movement in the direction normal to the tiled plane, which for the application of tiled armour...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
Tutorial on how to produce 3D images from #-Link-Snipped-# Step 1. Create a line image using my webpage, this is for CIRCLE = 120. Right click...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
A.V.Ramani<a href="https://www.shutterstock.com/search/tetrapod?image_type=vector" target="_blank" rel="nofollow noopener noreferrer">196 Tetrapod Stock Vectors, Images & Vector Ar...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
A.V.Ramani<a href="https://www.shutterstock.com/search/tetrapod?image_type=vector" target="_blank" rel="nofollow noopener noreferrer">196 Tetrapod Stock Vectors, Images & Vector Ar...
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Replied #Threads
Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
Peter DowThe only people "trying" here would appear to be the company Mozilla who are trying to offer a browser called "Firefox" which is trying to...
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Replied #Threads
Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
[Prototype]Interesting.Thanks. [Prototype]What exactly is the above animation trying to illustrate?What part of - Peter Dow#-Link-Snipped-# I've programmed a webpage using Javascri...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
[Prototype]I've absolute zero knowledge about mechanical engineering so it might be a dumb question, but can you tell what exactly is the significance of this? I...
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Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
#-Link-Snipped-# I've programmed a webpage using Javascript to display an animation which shows a range of different trispokedovetiles, each of which can be specified by a...
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Posted #Threads
Geometry. Three-spoke dovetailing tile tessellation. "Trispokedovetile"?
I've posted this image which I've described as a "Three-spoke dovetailing tile tessellation". #-Link-Snipped-# by <a href="https://www.flickr.com/photos/peterdow/" target="_blank"...
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Mathematics of the Wankel Engine shapes
I also use Wolfram Alfa quite a bit for routine calculations. Their search engine is also amazing.Well the Wolfram Mathematica package looks even more amazing but...
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Mathematics of the Wankel Engine shapes
Regarding the mathematics of the unusual shape and profile of the Wankel engine triangular rotor and combustion chamber housing, I'm reviewing a mathematics demonstration I have...
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Posted #Threads
FREEZERBATON - Freezer-baton for basic cryosurgery on a budget!
I'm describing here my design and construction project of a simple tool for basic cryosurgery - limited to freezing superficial skin lesions such as verrucas and...
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Tessellated I - my simple technical drawing, coloured artfully
<a href="https://www.youtube.com/watch?v=CRV9iuX8vSs" target="_blank" rel="nofollow noopener noreferrer">HI-BRICKS & DOWELS demonstration video by Peter Dow - YouTube</a> Transcr...
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Replied #Threads
Tessellated I - my simple technical drawing, coloured artfully
bioramaniSince they dovetail or interlock to form structures an obvious name can be Dowtail.Well the pins and tails of a "dovetail" joint are trapezoidal in shape,...
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Tessellated I - my simple technical drawing, coloured artfully
Someone on another forum produced an image - which I have uploaded here - "tiles cracked.jpg" which shows how the simple 2-D shape can be pulled...
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Tessellated I - my simple technical drawing, coloured artfully
bioramaniI was considering the pattern of the interlocked tiles that you mentioned;So was I. I was just pointing out that the interlocking of simple tessellated I-tiles...
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Replied #Threads
Tessellated I - my simple technical drawing, coloured artfully
bioramaniThis structure will have some flexibility in two dimensions. The interlocking 'I's will give excellent tensile strength.Of course a real structure always has 3 dimensions...
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