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Overdue Account
"Dear Jane, I do not have any money so I am sending you this drawing I did of a spider instead."
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 228 posts.
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PHYS771 Quantum Computing Since Democritus
University of Waterloo, Fall 2006 Tuesdays and Thursdays, 1:00-2:30pm BFG Building, 2nd floor seminar room (BFG2125)
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State "keep right" laws
All states allow drivers to use the left lane (when there is more than one in the same direction) to pass. Most states restrict use of the left lane by slow-moving traffic that is not passing. The table below describes the law in effect in each state.
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Regular Expression Matching: the Virtual Machine Approach
Name the most widely used bytecode interpreter or virtual machine. Sun's JVM? Adobe's Flash? .NET and Mono? Perl? Python? PHP? These are all certainly popular, but there's one more widely used than all those combined. That bytecode interpreter is Henry Spencer's regular expression library and its many descendants.
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A full TCP/IP stack in under 200 LoC (and the power of DSLs)
(Note: This is the third and final part of a series. Part one appeared Monday and part two appeared yesterday.)
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The Simple Truth
“I remember this paper I wrote on existentialism. My teacher gave it back with an F. She’d underlined true and truth wherever it appeared in the essay, probably about twenty times, with a question mark beside each. She wanted to know what I meant by truth.”
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LOOP for Black Belts
In Chapter 7 I briefly discussed the extended LOOP macro. As I mentioned then, LOOP provides what is essentially a special-purpose language just for writing iteration constructs.
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Verizon doesn't know Dollars from Cents
Click here for Audio (27 minutes - PutFile is reporting the time wrong) Here's the background: I have a Verizon unlimited data plan in the ...
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The Duct Tape Programmer
Jamie Zawinski is what I would call a duct-tape programmer. And I say that with a great deal of respect. He is the kind of programmer who is hard at work building the future, and making useful thin…
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Tail Recursion Elimination
I recently posted an entry in my Python History blog on the origins of Python's functional features . A side remark about not supporting ta...
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Partmaps.org
All hotels in Mallorca. The best selection of Mallorca hotels with reviews and maps. Book in advance and save.
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Cryptographic Right Answers
Encrypting data: Use AES in CTR (Counter) mode, and append an HMAC . AES is about as standard as you can get, and has done a good job of resisting cryptologic attacks over the past decade. Using CTR mode avoids the weakness of ECB mode, the complex (and bug-prone) process of padding and unpadding of partial blocks (or…
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Erik Naggum — A Long, Painful History of Time
ABSTRACT The programming language Common Lisp offers a few functions to support the concept of time as humans experience it, including GET-UNIVERSAL-TIME , ENCODE-UNIVERSAL-TIME , DECODE-UNIVERSAL-TIME , and GET-DECODED-TIME . These functions assume the existence of a timezone and a daylight saving time regime, such…
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JSONPath - XPath for JSON
A frequently emphasized advantage of XML is the availability of plenty tools to analyse, transform and selectively extract data out of XML documents. XPath is one of these powerful tools.
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Undergraduation
March 2005 (Parts of this essay began as replies to students who wrote to me with questions.) Recently I've had several emails from computer science undergrads asking what to do in college. I might not be the best source of advice, because I was a philosophy major in college. But I took so many CS classes that most CS…
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Why I gave away my company to charity
Derek Sivers official site. Thoughts on philosophy, culture, self-improvement. Author of Useful Not True, How to Live, Hell Yeah or No, Anything You Want.
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The Most Unusual (and Best) Computer Language Book I've Ever Seen.
Why's (Poignant) Guide to Ruby, from Why's (Poignant) Guide to Ruby by _why the lucky stiff. CC BY-SA 2.5.
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ha ha only serious
[from SF fandom, orig. as mutation of HHOK, ‘Ha Ha Only Kidding’] A phrase (often seen abbreviated as HHOS) that aptly captures the flavor of much hacker discourse. Applied especially to parodies, absurdities, and ironic jokes that are both intended and perceived to contain a possibly disquieting amount of truth, or…
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Minimum Viable Product: a guide
One of the most important lean startup techniques is called the minimum viable product . Its power is matched only by the amount of confusi...