wkjagt

#How I built an audio book reader for my nearly blind grandfather

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Last year, when visiting my family back home in Holland, I also stopped by my grand-parents. My grand-father, now 93 years old, had always been a very active man. However, during the presceding couple of months, he'd gone almost completely blind and now spent his days sitting in a chair. Trying to think of something for him to do, I suggested he try out audio books. After finally convincing him -- he said audio books were for sad old people -- that listening to a well performed recording is actually a wonderful experience, I realized the problem of this idea.

####The problem with audio devices and the newly blind. After my first impulse to jump up and go buy him an

kriskowal

var DIR = '/tmp/test',
    FILE_PATTERN = /test/,
    fs = require('q-io/fs');

fs.list(DIR)
.then(function (files) {
    var matched = files.filter(function (item) {
        return item.match(FILE_PATTERN);
    });
    if (matched.length !== 1) {

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

philfreo

#!/usr/bin/perl



use Mysql;
use strict;
use vars qw($school_name);
use vars qw($pass);

require "./cgi-lib.pl";

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

toddwschneider

# you can make a text file of request times (in ms, one number per line) and import it here, or you can use a probability distribution to simulate request times (see below where setting req_durations_in_ms)
# rq = read.table("~/Downloads/request_times.txt", header=FALSE)$V1

# argument notes:
# parallel_router_count is only relevant if router_mode is set to "intelligent"
# choice_of_two, power_of_two, and unicorn_workers_per_dyno are only relevant if router_mode is set to "naive"
# you can only select one of choice_of_two, power_of_two, and unicorn_workers_per_dyno

run_simulation = function(router_mode = "naive",
                          reqs_per_minute = 9000,

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

ndarville

Business Models

Advertising

Models	Examples
Display ads	Yahoo!
Search ads	Google

konklone

Problem: My Node.js processes (drones on Nodejitsu) are repeatedly growing in memory until they crash and get restarted. They are multiple processes responding to websockets connections over socket.io, using socket.io's Redis store to broker messages across connections and broadcast messages.

Conclusion: that socket.io's Redis store's memory usage likely either grows indefinitely, or is just way too high. We also isolated semi-frequent reconnects to the redis client on the part of each node.js process, though this looks unrelated to the overall memory problem.

Possibly related: socketio/socket.io#1040 socketio/socket.io#463

=== edited chat log of #nodejitsu on 25/11/2012 follows ==

nikcub

In August 2007 a hacker found a way to expose the PHP source code on facebook.com. He retrieved two files and then emailed them to me, and I wrote about the issue:

http://techcrunch.com/2007/08/11/facebook-source-code-leaked/

It became a big deal:

http://www.techmeme.com/070812/p1#a070812p1

The two files are index.php (the homepage) and search.php (the search page)