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Programmable Logic DesignLine Blog
Content posted in December 2006
Vegetal FPGAs (only eight Euros each)
Programmable Logic DesignLine Blog  
12/29/2006   Post a comment
New open source form of logic runs on water, oxygen, and biomaterial; is environmentally friendly; and is reputed to smell good.
Matthias Wandel's Magic Marble Machine
Programmable Logic DesignLine Blog  
12/27/2006   Post a comment
I just ran across the website of one Matthias Wandel, who has an eclectic range of interests, including some really cool marble machines.
Struggling with FPGA "gate" equivalents
Programmable Logic DesignLine Blog  
12/22/2006   Post a comment
A reader explains how he calculates FPGA equivalent gates and compares today's devices to the TTL technology of yesteryear.
In which we discover the steam-powered origin of the Internet
Programmable Logic DesignLine Blog  
12/20/2006   Post a comment
It is a little known fact that, even today, the Internet still relies on some steam-driven sections, mostly for little trodden routes to some of the more obscure domains.
More information regarding Gray codes is flooding in
Programmable Logic DesignLine Blog  
12/18/2006   Post a comment
I'm learning all sorts of information on Gray codes and Gray code counters, such as the fact that they consume half the average power of a binary counter.
We now have BCD math routines for the virtual DIY Calculator
Programmable Logic DesignLine Blog  
12/13/2006   Post a comment
I'm a "happy camper" because we now have a suite of binary-coded decimal (BCD) math routines for the DIY Calculator (plus I have some ferrite cores on the way).
Where can we find ferromagnetic cores to make a magnetic core store memory?
Programmable Logic DesignLine Blog  
12/4/2006   Post a comment
A reader asks if normal ferrite beads will work, or if they have the wrong hysteresis (and if so, where can we obtain some cores that will work?).


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Max Maxfield

Analog Faceplate Design Decisions: Art or Science?
Max Maxfield
50 comments
My degree is in Control Engineering -- a core of math with "surrounding subjects" of electronics, mechanics, and hydraulics and fluidics. The only official programming I did as part of ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
2 comments
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

latest comment kfield Some good recommendations here!
Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
3 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...