October 15, 2011 by Chris on Tidbits

In my case they are spot on, t…

In my case they are spot on, they have my age as one bracket lower (I think I like that). I’m not surprised, I think they know more.

October 15, 2011 by Chris on Tidbits

What does Google know about yo…

What does Google know about you? Here’s the tip of the iceberg: http://t.co/1bRyjJvy Is it accurate? Alarming or not surprising to you?

October 12, 2011 by Chris on Tidbits

I just liked “Poussière” on Vimeo: http://t.co/h5Q4QA4M

October 10, 2011 by Chris on Tidbits

Reality, imagination and a fold in the brain: http://t.co/WmzrWSFS Another key to mental illnesses like schizophrenia?

October 9, 2011 by Chris on Tidbits

#Plink is a brilliant bit of multiplayer web audio magic by DinahMoe. Try it out at http://t.co/5kRwT64u via @DinahmoeSTHLM

These are my links for July 20th through July 24th:

Ask HN: Best-architected open-source business applications worth studying? | Hacker News -
Monospaced Programming Fonts with Ligatures | Hacker News -
The language of choice - Propositional logic was discovered by Stoics around 300 B.C., only to be abandoned in later antiquity and rebuilt in the 19th century by George Boole’s successors. One of them, Charles Peirce, saw its significance for what we now call logic circuits, yet that discovery too was forgotten until the 1930s. In the ’50s John McCarthy invented conditional expressions, casting the logic into the form we’ll study here; then in 1986 Randal Bryant repeated one of McCarthy’s constructions with a crucial tweak that made his report “for many years the most cited paper in all of computer science, because it revolutionized the data structures used to represent Boolean functions” (Knuth).1 Let’s explore and code up some of this heritage of millennia, and bring it to bear on a suitable challenge: playing tic-tac-toe.
Then we’ll tackle a task that’s a little more practical: verifying a carry-lookahead adder circuit. Supposedly logic gets used all the time for all kinds of serious work, but for such you’ll have to consult the serious authors; what I can say myself, from working out the code to follow, is that the subject offers a fun playground plus the most primitive form of the pun between meaning and mechanism.

You’re encouraged to read with this article’s code cloned and ready