Open Knowledge

links for 2009-07-08

Wed, 08 Jul 2009 10:01:47 GMT

$ cheat rdebug

general Informations and Key shortcuts for Kent Sibilev's great ruby-debug gem. http://www.datanoise.com/ruby-debug/, http://rubyforge.org/projects/ruby-debug/ A reference manual for version 0.10.0 is at http://bashdb.sf.net/ruby-debug.html

(tags: tutorials ruby-debug)

Does Medicare have lower administrative costs?

Tue, 07 Jul 2009 16:58:41 GMT

…only an extremely small portion of administrative costs are related to the dollar value of health care benefit claims. Expressing these costs as a percentage of benefit claims gives a misleading picture of the relative efficiency of government and private health plans.Medicare beneficiaries are by definition elderly, disabled, or patients with end-stage renal disease. Private insurance beneficiaries may include a small percentage of people in those categories, but they consist primarily of people are who under age 65 and not disabled. Naturally, Medicare beneficiaries need, on average, more health care services than those who are privately insured. Yet the bulk of administrative costs are incurred on a fixed program-level or a per-beneficiary basis. Expressing administrative costs as a percentage of total costs makes Medicare’s administrative costs appear lower not because Medicare is necessarily more efficient but merely because its administrative costs are spread over a larger base of actual health care costs. When administrative costs are compared on a per-person basis, the picture changes. In 2005, Medicare’s administrative costs were $509 per primary beneficiary, compared to private-sector administrative costs of $453.

Via Greg Mankiw

Original: craschworks - comments

Best books on design/aesthetics?

Tue, 07 Jul 2009 16:47:06 GMT

What books on design or aesthetics do y’all like? The one that comes immediately to mind for me is Edward Tufte’s Visual Display of Quantitative Information. I also liked Design of Everyday Things.

What else is good? What’s the graphic designer’s bible? Specialist titles (for example, design of typography) are also welcome.

Original: craschworks - comments

links for 2009-07-07

Tue, 07 Jul 2009 10:01:41 GMT

Cprogramming.com - Tutorials - Debugging Segmentation Faults and Pointer Problems

For new programmers, debugging errors associated with pointers can be a nightmare. "Segmentation Fault (core dumped)" is a pretty vague error message, and it's even worse when strange bugs start appearing that don't cause segmentation faults — but that result in things like memory getting overwritten in unexpected ways.
But finding problems with pointers is easier than you'd think. Those segfaults often turn out to be among the easiest bugs to find, and using special tools such as Valgrind, even finding buffer overflows is simplified.

(tags: debugging segfaults)
Mac Developer Tips » Objective-C: Messaging

This post introduces messaging within Objective-C. Messaging is the terminology for invoking methods on an object. The format for a message expression is as follows (the brackets are required):
[object method]

or in Objective-C parlance

[receiver message]

(tags: objective-c tutorials messaging)
Objective-C Strings Are Not C Strings | Joey Gibson's Blog

I got bitten today by the fact that Objective-C strings in Cocoa programming are not the same things as plain old C strings. The problem is that Objective-C is essentially an object-oriented veneer on top of plain old C; sometimes it matters that you remember this, and other times it doesn’t. This was one of the times it mattered.

(tags: strings objective-c)
How do I profile how long a piece of code takes to execute in Objective-C/Cocoa for optimization purposes - Stack Overflow

Profile Objective-C code with Shark

(tags: objective-c profiler)
Speed your code with the GNU profiler

It is therefore vital that you have accurate information on exactly where the time is being spent within your applications — and for real input data — if you hope to have a chance of optimizing it effectively. This activity is called code profiling. This article introduces a profiling tool provided with the GNU compiler tool chain, the imaginatively named GNU profiler (gprof), for those who are relatively new to open source development tools.

(tags: programming profiler gprof)
Objective-C FAQ

(tags: programming objective-c)
Nobody learns if nothing is brok3n: September 2006 Archives

Warning: This post is longer than my usual. You may want coffee. The focus of this post is how to make a DMG image with a background in an automated fashion.
About DMG
For those who are reading this who are not aware of it, DMG (Disk Image) is the format commonly used to distribute software on OS X. There are other formats, the more traditional like tar.gz/zip/.sit. For more information specifically about how to distribute software as a DMG, you'll want to read Peter Hosey's how to distribute your software (and his semi-in-depth overview of compression format usage on OS X).

(tags: programming objective-c)
Benjamin Francisoud - Https, Ssl and Ruby

So you want to get/post to an https url using ssl, certificates, pem and ruby ?

(tags: ruby ssl https httpwatch)

Original: craschworks - comments

links for 2009-07-06

Mon, 06 Jul 2009 11:02:19 GMT

A whole month dedicated to Cocoa, iPhone and Mac OS X at Big Nerd Ranch Europe, February 2009

Big Nerd Ranch Europe, premier provider of intensive classes for programmers, is pleased to announce three of its flagship courses on Mac OS X. The whole month of February is dedicate to learning Cocoa programming for Mac OS X, developing applications for the iPhone and leveraging the powerful Unix foundation of Mac OS X along with learning advanced Cocoa programming techniques for professional developers.

(tags: programming cocoa objective-c training)
InformIT: Objective-C for C++ Programmers, Part 3 > Introspection

In part 1 and part 2 of this series, we looked at the core of the Objective-C language, defining classes, creating objects, and sending messages to them. This final article covers the more advanced parts of the language.

(tags: programming objective-c introspection)
Bert's Hair Design - San Mateo, CA

5 star barber on Yelp

(tags: hair barber)
Saturn 4.5 User Guide: Overview

After completing the first stages of program development, like design and debugging, you can use performance tools such as Saturn to help optimize your program. Saturn helps you understand your program’s function-calling structure and how much time was spent in each function. Saturn consists of two parts: a graphical front-end and a dynamic library back-end. The Saturn back-end library leverages the instrumentation infrastructure in gcc to generate an output file that summarizes how much time your program spends in various functions. The Saturn front-end can then read this file and present a representation of the function calling patterns and a function tree view.
Saturn allows you to visualize the data in two ways: a traditional call-tree view and a graphical call-stack timeline. Using this information, you can eliminate expensive calling behavior (for example, deep call stacks which do not last long) as well as understand which functions take up the greatest portion of execution time

(tags: programming optimization profiler)
On Cocoa Bindings – “Let Us Break Their Bonds Asunder” | Blog @ Tim Isted

Chances are, if you’ve developed any kind of Cocoa application, you’ve probably made use of Cocoa Bindings in one way or another, particularly when it comes to Core Data. The technology is ‘key’ to so many of the underlying frameworks but it is a technology that tends to be often-used but frequently not fully understood.
If you are someone who happily binds Array Controllers and View objects together using Interface Builder but have always wondered discretely exactly how the magic behind the scenes happens, or if you just don’t quite comprehend the difference between ‘KVC’ and ‘KVO’ (or perhaps can never quite remember what they stand for…), this article might help you out. In it, I’ll attempt to demonstrate a ‘faux-bindings’ methodology that connects a value from one object with a value from another object, but without using the actual Apple Cocoa Bindings technology. The bare-bones of how the ‘faux binding’ works will be there for all to see; while the internal workings of Cocoa Bin

(tags: programming cocoa bindings)
Optimizing your Application with Shark 4

If your application could benefit from improved performance—and let's be honest, most can—you need to know about Shark 4, the latest update to Apple's remarkable performance optimization tool. Shark enables you to very quickly identify where your application's performance problems lie, down to the specific functions on which you should concentrate your optimization efforts. You can then focus on the fixes that will yield the maximum benefits. Developers using earlier versions of Shark have found and fixed problems that improved performance dramatically, in a matter of hours.

(tags: programming profiler shark)
Lupe, der Satire-Blog: Autofahrer aufgepasst: Junge Igel! (5 Fotos)

Cutest hedgehog ever.

(tags: cute hedgehog)

Original: craschworks - comments

Why particle physicists make terrible biologists

Sun, 05 Jul 2009 19:34:39 GMT

Original: craschworks - comments

links for 2009-07-05

Sun, 05 Jul 2009 10:01:18 GMT

FAQ - TinEye

TinEye is a reverse image search engine. You can submit an image to TinEye to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions. TinEye is the first image search engine on the web to use image identification technology rather than keywords, metadata or watermarks. For some real TinEye search examples, check out our Cool Searches page.

(tags: tools photography images search reverse_search)
New Museum

This provocative 14-piece porcelain coffee set was made in Spain exclusivley for the New Museum. The crimson handprints and smears are an almost Baroque reflection on the act of consuming a meal. Edition of 15.
$500.00

(tags: art tea teapot bloody handprint)

Original: craschworks - comments

Nova Science Now: Auto-Tune, Photoshop for Singers

Sat, 04 Jul 2009 21:41:34 GMT

Original: craschworks - comments

links for 2009-07-04

Sat, 04 Jul 2009 10:01:19 GMT

The QandO Online Magazine: Free Markets, Free People

(tags: politics, medicare)

Original: craschworks - comments

Hair stylist/barber?

Sat, 04 Jul 2009 02:13:45 GMT

I’m looking for a hair stylist/barber located somewhere between San Mateo and Mountain View (preferably in either San Mateo or Mountain View). Any suggestions?

Original: craschworks - comments

Homeopathy - The Series

Fri, 03 Jul 2009 20:29:35 GMT

Original: craschworks - comments

links for 2009-07-03

Fri, 03 Jul 2009 10:01:46 GMT

Tekfoil™ Room Divider Curtain - FarmTek

Finally, an Insulated Room Divider/Curtain that keeps the heat in and the cold out. Save money on your heating costs. Material can be cut in the field with scissors.
â¢ TekFoilâ¢ Room Dividers stop radiant heat flow by reflecting 97% of radiant energy.
â¢ Room dividers can be installed permanently with a variety of roll-up options.
â¢ Room dividers are so low in cost that they can be suspended temporarily in construction projects, warehouse applications and offices.
â¢ Insulated room dividers reduce noise and keep dust out of the protected area.
â¢ These room dividers can be made to fit any area.
â¢ Bottom of the room divider has a 4" hem which accommodates up to a 1.66" OD pipe.

(tags: architecture divider, tekfoil, insulation)
Custom Hand-Forged Bronze Interior Railing | ArtMetal

Custom Hand-Forged Bronze Interior Railing: , hand-forged bronze railing with wood rail cap.This was the last large project I've produced, and will be my last large project forever. Custom Hand-forged bronze throughout.

(tags: architecture bronze, wrought_iron,)
Custom Hand-Forged Interior Iron Peacock Gate | ArtMetal

Custom interior gate hand-forged for my home. It blocks off the first floor and opens down to the basement. The peacocks were hand-forged also and very detailed. I do not have a close-up detailed photo of this gate.

(tags: architecture peacock, iron, gate)
Laying Ceramic Floor Tiles In A Small Room

This article explains the procedure of installing floor tile in a simple room, in this case a closet. In our old house remodeling project we earlier laid marble tiles on the floor in two bathrooms. The smaller of those baths had a 3'x3' closet. Since we did not have enough spare marble tile to do that small additional area, we decided to use inexpensive ceramic tile.

(tags: microhousing tile, flooring)
Moroccan tile: Moorish tile - Zillij - Moroccan tiles - Zellige - Islamic tile

Saint Tropez Boutique is a great source for handmade Moroccan tiles known as Zillij tile, zellige, zellij, zellidj, Moroccan tile, Moorish tile, Andalusian tile, Islamic tile. Zillij tile consists of individualy handmade, hand-glazed, hand-cut geometrical clay mosaics forming intricate Arabian geometric patterns.

(tags: microhousing tiles, flooring)
History of Encaustic Cement Tiles, Sources

encaustic cement tiles

(tags: microhousing tile)
Granada Tiles

Encaustic cement tiles — very pretty.

(tags: housing tiles)

Original: craschworks - comments

Tubifex worms in Cameron Villiage

Fri, 03 Jul 2009 03:58:37 GMT

Not for the squeamish. I’ve been to Cameron Village, and it’s a little freaky to think that such creatures were living in the sewers below.

Original: craschworks - comments

links for 2009-07-01

Wed, 01 Jul 2009 10:01:45 GMT

Welcome to Chorder [chorder.cs.vassar.edu]

his website contains information on building and using a home made 7 key chording keyboard.
I have been using this device or one of its predecessors since the mid 1980âs, by 1995 it has been a full function chorder and my primary keyboard with both Herbert, my wearable computer and conventional desktop machines.1) With the current version the chorder is now a usb keyboard and detected as a usb keyboard by the host computer. This change has been made possible as a result of work done by Mikkel Holm Olsen on the SpiffChorder. As a result of this change, any device that can support a standard usb keyboard should be able to use this alternative keyboard by just plugging it in.

(tags: tools spiffchorder, keyboard)

Original: craschworks - comments

links for 2009-06-30

Tue, 30 Jun 2009 10:01:51 GMT

Strobist: Yuri Arcurs: Mr. Microstock

I have to admit that when I first started watching this I thought it was one of those parody videos. But then I realized that Yuri (a nom de photo used by Jacob Wackerhausen) has basically beaten the microstock equivalent of the Kobayashi Maru by creating an entire facility based around the needs of microstock.

(tags: photography/blogs photography, stock)
Amazon.com: Rational Choice in an Uncertain World: The Psychology of Judgement and Decision Making: Professor Reid Hastie, Dr. Robyn M. Dawes: Books

When faced with an important decision, we are often on our own to think through what we might do and what the probable consequences of out behaviors are. As we make these judgments, it is important that we be able to communicate precisely and fluently with one another. In Rational Choice in an Uncertain World, renowned authors Hastie and Dawes compare the basic principles of rationality with actual behavior in making decisions. They describe theories and research finding from the field of judgment and decision making in a non-technical manner, using anecdotes as a teaching device. Intended as an introductory textbook for advanced undergraduate and graduate students, the material not only is of scholarly interest but is practical as well.

(tags: books selfhelp)
About | Atlas Obscura

Welcome to the Atlas Obscura, a compendium of this age's wonders, curiosities, and esoterica. The Atlas Obscura is a collaborative project with the goal of cataloging all of the singular, eccentric, bizarre, fantastical, and strange out-of-the-way places that get left out of traditional travel guidebooks and are ignored by the average tourist. If you're looking for miniature cities, glass flowers, books bound in human skin, gigantic flaming holes in the ground, phallological museums, bone churches, balancing pagodas, or homes built entirely out of paper, the Atlas Obscura is where you'll find them.
The Atlas Obscura depends on our community of far-flung explorers to find and report back about the world's wonders and curiosities. If you have been to, know of, or have heard about a place that belongs in the Atlas Obscura, we want you to tell us about it. Anyone and everyone is welcome and encouraged to nominate places for inclusion, and to edit content already in the Atlas.

(tags: travel)

Original: craschworks - comments

links for 2009-06-29

Mon, 29 Jun 2009 10:01:46 GMT

Randolph Austin - Peristaltic Pumps

Pump for portable shower?

(tags: tools pump, microhousing)

Original: craschworks - comments

Ricky Gervais and Elmo

Mon, 29 Jun 2009 05:01:17 GMT

Original: craschworks - comments

Star Wars Gnarls Barkley

Mon, 29 Jun 2009 04:18:58 GMT

This one’s pretty good too…(Note: not for the squeamish.)

Original: craschworks - comments

links for 2009-06-28

Sun, 28 Jun 2009 10:01:35 GMT

ARToolKit Home Page

videos de realidadARToolKit is a software library for building Augmented Reality (AR) applications. These are applications that involve the overlay of virtual imagery on the real world. For example, in the image to the right a three-dimensional virtual character appears standing on a real card. It can be seen by the user in the head set display they are wearing. When the user moves the card, the virtual character moves with it and appears attached to the real object. aumentada en PC

(tags: programming tools, ar, art)
How to be a Programmer: A Short, Comprehensive, and Personal Summary

To be a good programmer is difficult and noble. The hardest part of making real a collective vision of a software project is dealing with one's coworkers and customers. Writing computer programs is important and takes great intelligence and skill. But it is really child's play compared to everything else that a good programmer must do to make a software system that succeeds for both the customer and myriad colleagues for whom she is partially responsible. In this essay I attempt to summarize as concisely as possible those things that I wish someone had explained to me when I was twenty-one.
This is very subjective and, therefore, this essay is doomed to be personal and somewhat opinionated. I confine myself to problems that a programmer is very likely to have to face in her work. Many of these problems and their solutions are so general to the human condition that I will probably seem preachy. I hope in spite of this that this essay will be useful.

(tags: programming programming, selfhelp)
NORRØNA

NORRÃNA has a burning desire to develop, construct and produce the most innovative products on one hand, and the passion and love for nature on the other. Our company was started in 1929 and has been in the same family for four generations. See our outdoor and freeride clothing and backpacks here online.

(tags: travel backpacks, preparedness, gear, tools)
Technical Q&A QA1405: Variable arguments in Objective-C methods

(tags: programming/objective-c variadic, arguments)
Valgrind Home

memory leak detection

(tags: programming/gdb valgrind, gdb, profiling)
Custom fiberglass without a mold

Sometimes it's desireable to build something out of fiberglass, without the use of a mold. This is often true in car audio, where you are building a single structure, such as a dashboard, or a speaker box.
Many articles cover building a speakerbox into a stange cove, by fiberglassing into a corner or hole, but what they don't show you how to do, is to build a completely custom object, such as a speakerbox with a curving exterior shape.

(tags: art fiberglass, mold)
MiniMan

To pay homage to this ideal, Camp Apokiliptika decided to build a symbolic icon. After serious consideration between camp founder Kernul Killbuck and No. 1 acolyte, Jellyfish, the Spawn of Burning Man came into being. The Spawn is a 12-foot-plus recreation, the progeny, if you will, of the real Man. Miniman is mounted on a backpack and becomes an extension of his handler's movements. Though conceived by Jellyfish, Jelly insists Miniman is the creation of Larry Harvey, as it is made in the image of the original Burning Man.

(tags: burning_man)
Microfilmmaker Magazine - Tips & Tricks - Building the $60 Portable Greenscreen, Pg. 1 of 2

As these are the necessities for greenscreening, we chatted with a few different greenscreen technicians and came up with a pretty simple how-to guide for building your own portable greenscreen for $60. This is larger than most of the portable screens on the market (as well as being much easier to set up and collapse) and it allows a soft curve to meet the floor so you donât have harsh shadows.

(tags: photography tools, greenscreen, backdrop)
Gear Factor - Flying Solutions for events and advertising

Blimps that look like cars other products.

(tags: airship airship, blimp)

Original: craschworks - comments

Is “gay face” real?

Sat, 27 Jun 2009 20:29:51 GMT

People can identify pictures of gay men at a rate above chance:

The January 2008 study investigated people’s ability to identify homosexual men from pictures of their faces alone. In an initial experiment, researchers Nicholas Rule and Nalini Ambady from Tufts University perused online dating sites and carefully selected 45 straight male faces and 45 gay male faces. All of these photos were matched for orientation (only faces shown looking forward were used) and facial alterations (none of the images contained jewelry, glasses or facial hair). To control for context, the faces were also cut and pasted onto a white background for the study. These 90 faces were then shown to 90 participants in random order, who were asked simply to judge the target’s “probable sexual orientation” (gay or straight) by pressing a button. Surprisingly, all participants (both men and women) scored above chance on this gaydar task, correctly identifying the gay faces. Even more surprisingly, accuracy rate was just as good when the images were exposed at a rapid rate of only 50 milliseconds, which offered participants no opportunity to consciously process the photo.

Original: craschworks - comments

links for 2009-06-27

Sat, 27 Jun 2009 10:01:32 GMT

Alcoholic Humor: Best Response From Drunk Screwing Pumpkin

An urban legend, unfortunately.

(tags: humor humor, jokes)
Chris Hanson - Xcode: Unit Testing Cocoa frameworks

It's straightforward to write unit tests for Objective-C Cocoa frameworks with Xcode 2.1 and later.
First, turn off ZeroLink when building your framework. ZeroLink is a great technology, but you can't link against something that's built with ZeroLink, and that's exactly what your unit tests are going to do. Note: You only need to do this for Xcode 2.1 through Xcode 2.5. Xcode 3.0 removed support for ZeroLink, since the linker is now sufficiently fast as to obviate it.

(tags: programming/objective-c objective-c, xcode)
Chris Hanson - Xcode: Debugging Cocoa framework unit tests

So you've set up unit testing for your Objective-C Cocoa framework and it's been working great. But now you've written a test and it fails, and you can't figure out why. It's time to break out the debugger, but how, exactly, do you do that? Your unit tests are built as a bundle, and you can't run a bundle.
It's simple. All you have to do is set up an appropriate Executable in Xcode to run the test rig that runs your bundle, and then debug that. To get started, choose the Project > New Custom Executable menu item. For its name, specify otest â this is the name of the test rig used by OCUnit. Specify /Developer/Tools/otest as the path to your tool.

(tags: programming/objective-c ocunit, debugging, cocoa, gdb)
Strings in Cocoa: Part I - O'Reilly Media

In the next two columns we will delve into the fundamentals of the classes NSString and NSMutableString; these two classes make up the majority of Cocoa's string-handling ability.
We'll start today by dealing with the various ways to create strings, and the basic manipulation methods that allow us to extract substrings, and search and compare strings too. However, before I get into that, I want to start with a mini-lesson about another concept of object-oriented programming: class clusters.

(tags: programming/objective-c cocoa, objective-c, strings)
mikeash.com: Friday Q&A 2009-05-22: Objective-C Class Loading and Initialization

How classes actually get loaded into memory in Objective-C aren't anything that you, the programmer, need to worry about most of the time. It's a bunch of complicated stuff that's handled by the runtime linker and is long done before your code ever starts to run.
For most classes, that's all you need to worry about. But some classes need to do more, and actually run some code in order to perform some kind of setup. A class may need to initialize a global table, cache values from user defaults, or do any number of other tasks.

The Objective-C runtime uses two methods to provide this functionality: +initialize and +load.

(tags: programming/objective-c)
Mac Developer Tips » iPhone Developer

Looking to learn how to develop applications for the iPhone? On this page youâll find examples, tips/tricks and best practices for developing iPhone applications. Click the Xcode icon to download the project source code.

(tags: programming/iphone iphone, xcode, cocoa)
Mac OS X's Preferences System (and More!) - O'Reilly Media

Today, we will tie up some loose ends from the previous column. This will involve a discussion of several ways we can save the address book data between launches, and then go on to touch upon some memory management issues. In this process, we'll also learn about Mac OS X's preferences system.

(tags: programming/xcode xcode, cocoa)
Technical Note TN2124: Mac OS X Debugging Magic

This technote describes a number of 'secret' debugging facilities in Mac OS X, including environment variables, preferences, routines callable from GDB, special files, and so on. If you're developing for Mac OS X, you should look through this list to see if you're missing out on something that will make your life easier.

(tags: programming/gdb gdb, xcode, debugging)
Peter's gdb Tutorial: Memory Layout And The Stack

To effectively learn how to use GDB, you must understand frames, which are also called stack frames because they're the frames that comprise the stack. To learn about the stack, we need to learn about the memory layout of an executing program. The discussion will mainly be theoretical, but to keep things interesting we'll conclude the chapter with an example of the stack and stack frames using GDB.

(tags: programming/gdb gdb, debugging)
Instacalc Online Calculator | Instant Results

It's called InstaCalc for a reason: answers appear as you type. Your time is important, the computer's time is not. Spend less time waiting, more time doing.

(tags: tools/software calculator)
Debugging with GDB | BetterExplained

A debugger lets you pause a program, examine and change variables, and step through code. Spend a few hours to learn one so you can avoid dozens of hours of frustration in the future. This is a quick guide, more information here:
* Official Page - Documentation
* Sample session - Short Tutorial - Long Tutorial

(tags: programming/gdb gdb, debugging)
GDB Tutorial

A debugger is a program that runs other programs, allowing the user to exercise control over these programs, and to examine variables when problems arise. The most popular debugger for UNIX systems is gdb, the GNU debugger. gdb has tons of features, however, you only need to use a few for it to be useful. There is complete documentation for gdb online, or you can read the man page (type "man gdb" at the unix command prompt), and the quick reference card is very handy.

(tags: programming/gdb)
Debugging with GDB: Sample Session

A Sample GDB Session
You can use this manual at your leisure to read all about GDB. However, a handful of commands are enough to get started using the debugger. This chapter illustrates those commands.

(tags: programming/gdb gdb, debugging)
Debugging with gdb - Examining Source Files

GDB can print parts of your program's source, since the debugging information recorded in the program tells GDB what source files were used to build it. When your program stops, GDB spontaneously prints the line where it stopped. Likewise, when you select a stack frame (see section Selecting a frame), GDB prints the line where execution in that frame has stopped. You can print other portions of source files by explicit command.

(tags: programming/gdb gdb, spurl)
GDB Tutorial

This tutorial gives an overview on basic features of GDB. It is assumed that audience is familiar with GCC and "GNU Make". It is also assumed that user has some prior experience with some Debugging Environment.

(tags: programming/gdb gdb, debugging)
CS193E: Debugging Objective-C with gdb

When using Xcode on Mac OS X, the debugger underneath the covers is the GNU gdb
debugger. There are a number of extensions to gdb to support debugging Objective-C
applications. Here are a few tips that may be helpful.

(tags: programming/xcode gdb, debugging)
CocoaDev: ZeroLink

ZeroLink is a new feature to speed up turn around times for applications. This feature can be turned off if you are linking against a static library. It's easy to get confused as to weither or not ZeroLink is enabled when using a target inspector because the project settings will override target settings (for ZeroLink). You have to turn ZeroLink off in the project inspector (see BuildStyles) if a static library is not linking properly. Please note that ZeroLink is gone with XCode 3!

(tags: programming/xcode zerolink, xcode)
Xcode Tools Tips

(tags: programming/xcode xcode, tips)
Max 5

In use for over twenty years by performers, composers, artists, scientists, teachers, and students, Max is the way to make your computer do things that reflect your individual ideas and dreams. Version 5 is a dramatic transformation of Max that begins a new chapter in the program's history.

(tags: music)
Optimization in GCC

In this article, we explore the optimization levels provided by the GCC compiler toolchain, including the specific optimizations provided in each. We also identify optimizations that require explicit specifications, including some with architecture dependencies. This discussion focuses on the 3.2.2 version of gcc (released February 2003), but it also applies to the current release, 3.3.2.

(tags: programming/gcc gcc, optimization)

Original: craschworks - comments

Floating fire lantern festival

Sat, 27 Jun 2009 00:49:02 GMT

Loy Kratong festival in Chiang Mai Thailand. Music: Lokrev Aaraaki by Org Lounge. Lanterns can be purchased at www.skylanterns.com

“Loy” means to float in Thai. Alongside the floating vessels, decorative lanterns (Kome) also became part of this tradition. There are four different purposes for the Northern Thais to hang lanterns. They are for beauty, to pay respect to Buddha images, to make one’s home brighter, and for propitious reasons. The four main northern traditional Komes are: (1) Kome thuea (carrying lantern) or Kome gratai; (2) Kome kwaen (hanging lantern); (3) Kome paad (revolving lantern); and (4) Kome Loy (hot air floating lantern).

The Kome Loy is a drum-size lantern similar to a hot-air-balloon. It is made of lightweight rice paper to be able to float in the air, and in order to send it up, a method to heat the air is included by tying a small receptacle underneath the open section of the lantern. Oil is then placed with a cotton cloth. As the oil catches fire and burns, hot air quickly fills the lantern and it soon rises into the air.”

This would make a great event at a future Ephemerisle.

Original: craschworks - comments

links for 2009-06-26

Fri, 26 Jun 2009 10:01:37 GMT

McMurdo Fast-Find 210 - Change In The Way You Think About EPIRBS

A few months ago we received a press release from McMurdo on a revolutionary product, the Fast-Find 210 PLB, a portable version of an EPIRB, The revolutionary part was not a change in the way distress signals are sent from the device but rather the size (very small) and price point ($299 list) of the device. Subscribing to the theory of Too Good To Be True, we have held off on writing about the product until we had confirmation on the quality of the unit from a trusted source. Today that verification came, via Panbo, from friend of gCaptain and survival expert Doug Ritter.

(tags: preparedness survivalism, epirb)
Unix Screen Utility - How do I use that? - AssistProgramming.com - Programming Tips & Tricks

Gnu screen tutorial

(tags: programming/screen screen)
W3 Style » Blog Archive » Compiling Objective-C without XCode in OS X

Iâm new to Objective-C and programming for OS X in general, but I get frustrated when all articles, books and tutorials narrow themselves down to just one IDE and push you away from the glory of the command line. So how do you compile a simple âHello World!â application in objective-C on a Mac?

(tags: programming/objective-c compiler, objective-c, hello, tutorial)
How To Build a Green Screen Chroma Key Set DIY

27
Feb
How To Build a Green Screen Chroma Key Set DIY
Posted by Dave Dugdale Published in Video

greenscreen.jpg

The lower lights in the picture above are two 250 watts (500w total) to light the green screen (one stand cost $24), the one in the upper right is the back light (kicker) and the one in the middle is my spot light - but the spot is not working well so I am going to build another softbox for this location.

(tags: photography greenscreen, film, photography, backdrop)
henname - User Profile

My name is Kristina and I have been a henna artist since 1998 in the Cleveland, OH area. Aside from my henna excursions, my art background includes a Bachelor in Studio Art from Cleveland State University.
I use only natural henna directly imported from Middle Eastern manufacturers. I do not use "black henna" or any substance containing PPD.

My home made henna paste contains all natural ingredients like lemon juice, honey and essential oi

(tags: photography henna, body_art, photography, blog)
Andrew Seltz: The Go-To Guy! » Gadgets and Toys

This is not the right way to shoot a green screen, but I needed to work in a hurry.
I found an opportunity to convince some business folks on the benefits of an in-house studio space with a built-in pre-lit green screen. I wanted to make sure the execs knew that we already had the technical capacity to shoot and composite green screen work and that we only needed dedicated space to make an efficient system.

The first photo shows my basic screen setup inside the office used for my editing/equipment storage room. The main screen is a Photoflex Flexdrop collapsible blue/green screen. Since I needed to grab a full body shot, I clipped on the vinyl green screen that shipped with my copy of Serious Magic Visual Communicator Studio.

(tags: photography greenscreen, film,)
Metal Supermarkets

Metal SupermarketsÂ®, The Convenience Stores Of The Metal IndustryTM, is the Worldâs largest supplier of small quantity metals.
With a network of over 80 stores we carry most standard grades, sizes and shapes of:

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Steel
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If we donât have what you need weâll source the material for you.

Buy Only What You Need
You can buy whatever size or type of metal you need, quickly and easily, with no minimum order size. Orders are cut to size while you wait, or delivered fast!
Thereâs no need to buy full lengths. You simply purchase the size and shape you want.

Not sure what you need? Our friendly, knowledgeable associates are ready to help.

More Than Metal

(tags: photography photography, backdrop, metal, pipe)
MODERN STUDIO EQUIPMENT, INC.™

1 1/4" kee_klamp like pipe fittings

(tags: photography kee_klamp, pipe,)

Original: craschworks - comments

Monk and Nina Conti

Fri, 26 Jun 2009 04:46:46 GMT

Via Newmark’s Door.

Original: craschworks - comments

Self-deprecating humor the way to a woman’s heart?

Thu, 25 Jun 2009 18:43:08 GMT

Yes, according to this article:

The MOST effective way to get a woman into bed is by running yourself down, say scientists
…
His wry, self- deprecating humour is as important as his floppy hair and English charm at ensuring he always wins the heart of his leading lady.

Now scientists have discovered the technique used by Hugh Grant’s film characters can bring the same romantic success offscreen.

Taking the mickey out of yourself works far better than clever jokes, which might be seen as boastful and put women off.

The findings were outlined by anthropologist Gil Greengross, who conducted a two-year study into the role of humour in seduction.

Sweet! Hey ladies! I’m poor! And I have a pot belly.

The report, ‘Dissing Oneself: The Sexual Attractiveness of Self-Dep-Humour’, which will be published next month in the Journal of Evolutionary Psychology, also warns that the technique should not be attempted by those who are already unpopular.

It could make ‘low-status individuals’ appear ‘more pathetic’ than they did before.

Aw, crap….

Original: craschworks - comments