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Programmable Logic DesignLine Blog
Content posted in September 2006
I have a question about Venn Diagrams
Programmable Logic DesignLine Blog  
9/29/2006   Post a comment
I know, I know, these representations are intrinsically simple in concept, yet I have a niggling memory of something that, well, I can't quite remember!
The Tertiary Period no longer exists!
Programmable Logic DesignLine Blog  
9/27/2006   Post a comment
Geologists have recently gone through a fairly thorough revision of the time scale; the Tertiary Period (from 65 to 1.8 million years ago) has been given the boot!
The most amazing visual illusion!
Programmable Logic DesignLine Blog  
9/25/2006   Post a comment
Called the "Rotating Turtles" illusion, this static image appears to move in front of your eyes to the extent you can become dizzy looking at it!
A reader responds to 'seeing schematics in color'
Programmable Logic DesignLine Blog  
9/21/2006   Post a comment
I just heard from an electronics engineer who reports experiencing seeing the wires linking logic gates in color (this is in schematics printed in black-and-white).
Fast and free Acrobat document viewer
Programmable Logic DesignLine Blog  
9/20/2006   Post a comment
This free viewer overcomes the two problems that make me rant and rave; the time it takes to open a PDF and the PDFs I can't open.
It's International Talk Like a Pirate Day!
Programmable Logic DesignLine Blog  
9/19/2006   Post a comment
Seriously, September 19 is one of the now-classic geek holidays and ranks right up there with 'Pi Day' (14 March) and 'Pi Approximation Day' (22 July).
Let's surprise Gabe Moretti!
Programmable Logic DesignLine Blog  
9/18/2006   Post a comment
The editor of our sister DesignLine site, EDAdesignline.com, is on vacation - the silly sausage has left me in charge - let's surprise him on his return!
Building a spectrometer from a CD and a cornflakes box
Programmable Logic DesignLine Blog  
9/13/2006   Post a comment
This interesting and easy-to-build home experiment may provide a hint on the path to solving a question I've been pondering (or not as the case might be).
The Khronos 4D projector
Programmable Logic DesignLine Blog  
9/12/2006   Post a comment
Named after the personification of time in ancient Greek Literature, the Khronos Projector provides a new way to manipulate pre-recorded movie content.
The 'box' that broke the Enigma code is rebuilt
Programmable Logic DesignLine Blog  
9/11/2006   Post a comment
Also, I'm more than a little surprised to discover that the 'machine' I'm currently using to as a door stop to keep my office door open may be worth $50,796!
Yet more free graphics programs
Programmable Logic DesignLine Blog  
9/8/2006   Post a comment
Folks continue to recommend really good graphics programs; meanwhile I'm busily looking for (accurate) spectral data on moonlight.
More cool low-cost (or free) graphics programs
Programmable Logic DesignLine Blog  
9/7/2006   Post a comment
How about a virtual easel that mimics oils, chalk, markers, crayons, pencils, and so forth?
A 'senses challenge' plus lots of other cool stuff
Programmable Logic DesignLine Blog  
9/6/2006   Post a comment
Among other things, we find an interactive challenge to our senses (each item comes with a short explanation as to how you can't always trust your perception).
From banana-plant solar panels to 406 MPH in a Peugeot 406
Programmable Logic DesignLine Blog  
9/5/2006   Post a comment
I've just returned from celebrating the Labor Day holiday (and by golly I was ready for it) to discover all sorts of cool stories in my email.


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Max Maxfield

Creating a Vetinari Clock Using Antique Analog Meters
Max Maxfield
33 comments
As you may recall, the Mighty Hamster (a.k.a. Mike Field) graced my humble office with a visit a couple of weeks ago. (See All Hail the Mighty Hamster.) While he was here, Hamster noticed ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
11 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
11 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
45 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

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