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New
The latest blog posts to take off on Hacker News. 3,400 posts.
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Selection bias and bombers (2008)
During WWII, statistician Abraham Wald told the RAF to add armor where it didn't seem planes needed it. But he was right.
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The new X-Men movie explained in Git
I went to see X-Men: Days of Future Past last weekend. While having a heated discussion about the logic behind the time travel in the movie with fellow Rocketeer Lucas Galego, we realized that Git provides a great analogy for time travel. So here you have it, the new X-Men movie explained in Git. SPOILER ALERT If you…
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At
I recently appeared with John Gruber on The Talk Show. During the episode, the following exchange took place: @gruber: “How do you pronounce the ‘at’ symbol?” @chockenberry: “At” @gruber: “Right” Another @thetalkshow gem. — Jim Lipsey (@Jim_Lipsey) March 24, 2014 When it comes to naming characters, the Unicode…
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Can I drop a pacemaker 0day?
Can I drop a pacemaker 0day at DefCon that is capable of killing people? Computers now run our cars. It's now possible for a hacker to i...
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Running OS X Mavericks under QEMU with KVM
This domain name is available, own it today. Affordable payment options. Fast and professional service.
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The Decline and Fall of IBM
Bob's new eBook, The Decline and Fall of IBM, is finally available on Amazon.com.
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We Need Hardware Traps for Integer Overflow
How many problem domains require wrapping signed integers or non-wrapping unsigned integers? Can the current undefined case be replaced with a trap and everything else be left intact?
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NFL players: height and weight over time
An animated look at just how much bigger NFL players have gotten over time.
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Peek Inside a Professional Carding Shop
Over the past year, I’ve spent a great deal of time trolling a variety of underground stores that sell “dumps” — street slang for stolen credit card data that buyers can use to counterfeit new cards and go shopping in big-box stores for high-dollar merchandise that can be resold quickly for cash. By way of explaining…
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PostgreSQL columnar store benchmarks on SSDs
Citus gives you all the greatness of Postgres plus the superpowers of distributed tables. By distributing your data and queries, your application gets high performance—at any scale. The Citus database is available as open source and as a managed service on Azure.
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"We need a pony. And the moon on a stick. By next Thursday."
So, the US Secret Service has issued a requirement for software that can detect sarcasm in tweets . And lo, there was much rejoicing in the land, especially among post-doc researchers looking for grant money to pursue research in algorithmic applications of semiotics with a side-line in heuristic knowledge processing…
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Gittip, Year Two
Gittip Works! But not yet for Gittip
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Judge Releases Information about Police Use of Stingray Cell Phone Trackers
A Florida judge has sided with the ACLU to order release of information about police use of “stingrays,” which are invasive surveillance devices that send out powerful signals to trick cell phones into transmitting their locations and identifying information. The Tallahassee judge’s pro-transparency decision stands in…
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Raycasting
deltaDistX = sqrt(1 + (rayDirY * rayDirY) / (rayDirX * rayDirX)) deltaDistY = sqrt(1 + (rayDirX * rayDirX) / (rayDirY * rayDirY))
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Devcards – Taking Interactivity to the Next Level
Devcards is a ClojureScript library that helps developers interactively lift code examples out of their source files into an organized set of cards in the browser.
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I Build Supercomputers in My Spare Time
Brian Guarraci is a software engineer at Twitter and in his spare time he’s building a Parallella cluster with a design that was inspired by two of the most iconic supercomputers ever made.
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Why and how to avoid hamburger menus
The issues of this pattern are now widely recognized, but what’s the real solution?
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Letting go
Finding focus by opting out of distractions and negative experiences.