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Reverse Engineering a Real Candle
Two years ago, I spent some time analyzing the algorithm used in a candle flicker LED as commonly found in cheap artificial candles. I reverse engineered the algorithm from the flickering pattern…
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,307 posts.
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Help Make “The Essential Guide to Electronics in Shenzhen” a Reality
Readers of my blog know I’ve been going to Shenzhen for some time now. I’ve taken my past decade of experience and created a tool, in the form of a book, that can help makers, hackers, and entrepreneurs unlock the potential of the electronics markets in Shenzhen. I’m looking for your help to enable a print run of this…
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How to make Slack less bad for you
Slack claim to be in the business of "making your working life simpler, more pleasant, and more productive". We’re about to be cynical, so let’s acknowledge that this claim is probably at least par...
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Which countries are mentioned the most on Hacker News?
As I was walking around Osaka with Sacha , we started talking about Hacker News and how there seem to be a lot of popular stories about Japan.
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Why should children program? A review of Seymour Papert's Mindstorms
This is an essay about what it means to teach a kid to program, using Seymor Paperts groundbreaking book Mindstorms as a reference.
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Understanding the Elm type system
Articles about bootstrapping a business in tech and web development by Adam Waselnuk. I’m a first-time founder who is bootstrapping a software business. Follow along as I learn!
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C++ for Games: Performance, Allocations and Data Locality
Abstract: Allocations and related lack of spatial locality can be DAMN EXPENSIVE Quote: During the times of Ancient Gamers (also known as times of Atari, ZX ...
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To approximate 52! by hand, compute 54! and divide by 3000
Some time ago I gave a talk in which I showed that something unexpected happened with a deck of playing cards. I had some volunteers try it, and while they did so I talked about just how many orderings there are for 52 cards. I computed (an approximation to) $52!$ (52 factorial) by hand. It's not so hard - you just…
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Distributed Systems in Haskell
I recently completed UT Austin's Distributed Computing class, taught by Lorenzo Alvisi. My project partner Pato and I decided to give it a go in Haskell, and ended up using Haskell for all project assignments (Chandy-Lamport, Paxos, and Bayou).
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K-Nearest Neighbors from Scratch
Using JavaScript, we implement the k-Nearest Neighbors algorithm from the bottom up.
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Go Debian: Writing Debian tooling in Go
As some of the world knows full well by now, I’ve been noodling with Go for a few years, working through its pros, its cons, and thinking a lot about how humans use code to express thoughts and ideas. Go’s got a lot of neat use cases, suited to particular problems, and used in the right place, you can see some clear…
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Uber's Failure in Japan
Uber’s disastrous failure in Japan was not caused by local competition, but by a uniquely American strategy that simply could not work in Japan. You see, Uber represents a new kind of startup. The very thing that makes them so successful in America dooms them to failure in Japan.
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Beware of the Silicon Valley cult
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Ansible vs. Chef (2015)
I wrote an earlier post about evaluating Ansible as an alternative to Chef. So after spending many years with Chef, I’ve found that Ansible is a lot easier to manage with startups. It’s easier to train developers, it’s easier to manage inventory and orchestration, and it works reasonably well on the scale of thousands…
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Are closed social networks inevitable? (2010)
This is an archive of an old Google Buzz conversation (circa 2010?) on a variety of topics, including whether or not it's inevetible that a closed platform will dominate social.
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Happy 23rd Birthday, DOOM
It's that time of year again, where we say Happy Birthday to one of my most favorite games, DOOM! Every year I try to reveal something about the game's development that hasn't been documented to death. Believe me, DOOM has been documented more than most games. But never fear, I have so much stuff th
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From web dev to 3D: Learning 3D modeling
A few months ago I set myself the challenge to recreate this photo (shot by Masashi Wakui) By modeling it in 3d! At the end I had this (I promise no IRL cats w…
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Becoming an expert through deliberate practice
How do you become an expert? Here's an interview with the professor who created the 10,000 hours theory of expertise that will teach you how to be the best.