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Physics is a natural science concerned with the study of matter and energy applying laws that govern natural phenomena. It encompasses the study of the universe from the largest galaxies to subatomic particles, covering mechanics, radiation, heat, electricity, sound, magnetism and the structure of atoms.

First of all, I’d like to point out this article doesn’t include full-fledged IDEs, I’ll leave those for another article. So in conclusion you won’t find here Emacs, nor Vim or Eclipse and so on. This article overviews text editors, which may or may have not features belonging to a programming environment, like indentation or syntax highlighting, but aren’t full-blown development environments.

I use iptables by many years and used it also for complex solutions and only recently i’ve discovered ufw (Uncomplicated Firewall), the ubuntu version, or better developed to ease iptables firewall configuration, ufw provides a user friendly way to create an IPv4 or IPv6 host-based firewall. By default UFW is disabled.

Microsoft has attacked the Khronos Group's WebGL, a cross-platform 3D graphics API for the web found in Firefox and Chrome, as being & harmful& and & not a technology ... (we) ... can endorse from a security perspective.& Hostile websites could use WebGL to steal the contents of a user's screen or freeze or reboot systems at will, the company charges.

Sakai: Free as in Freedom, written by Charles Severance (the first Executive Director of the Sakai Foundation) is a personal view of the history of Sakai. The book is a thorough description of how the project and its software evolved. This is not a book about software configuration; it is a book that describes how a community emerged from the actions of individuals. Sakai CLE is a popular Learning Management System composed of more than a million lines of Java code.

Read the review at Free Software Magazine.

An Ubuntu user has started a project to gather community ideas for Unity with the intent to present it to the Unity design team. But before doing that, he wants some feedback from you.

Qi Hardware, the company responsible for the Ben Nanonote, has created a USB dongle offering wireless networking on open-sourced hardware conforming to the 6LoWPAN standard from as little as £25 assuming you can get driver software and don't mind being unable to talk to anyone else. 6LoWPAN isn't as fast as Wi-Fi, or as ubiquitous as Bluetooth, but it is free from royalty payments.

Do you think that artists are still people who use easels, brushes and chalk? Or they still use pianos and violins? Sure, some of them do. But in modern era some of them became electronic-based artists. Those who use computers as their tools.

This document covers setup of a Squid Proxy which will seamlessly integrate with Active Directory for authentication using Kerberos with LDAP as a backup for users not authenticated via Kerberos. Authorisation is managed by Groups in Active Directory. This is especially useful for Windows 7 clients which no longer support NTLMv2 without changing the local computer policy. It is capable of using white lists and black lists for site access and restrictions.

To celebrate its 100th anniversary IBM threw itself a party and, oh, what a bash it was. It's IBM's culture that has kept it going, CEO Sam Palmisano told an audience of thousands.

This week we look at 7 Agile programming sins, why programmers need to get out more and why mobile is at odds with IT.

Colin Watson announced recently that starting with June 16th, 2011, all daily builds and final releases of the Ubuntu operating system will be distributed as hybrid CD and USB ISO images.

The Software Freedom Conservancy (SFC) has added another organization — the Evergreen project joins the SFC as the 27th member project. Since we're halfway through 2011, I took the opportunity to check in with Conservancy executive director Bradley Kuhn to see how things are going with the organization.

Unless you’ve been hiding in a cave for the last few years, you probably know about the free multimedia codecs with the fishy-sounding names from Xiph.org: Ogg Vorbis (for sound) and Ogg Theora (for video). You might be less familiar with other family and friends, including FLAC (lossless audio), Skeleton (metadata stream), and Kate (subtitles). However, together this collection of codecs can be used with the Ogg container format to provide all of the functionality of a DVD video file — multiple soundtracks, full surround sound, high definition, and selectable subtitles. Having created the various streams for a prototype release of “Sintel” in my last few columns, I’m now going to integrate them into a single video file and test it with some players.

Ubuntu Unleashed 2011 Edition: Covering 10.10 and 11.04 (6th Edition) is a book written by Matthew Helmke, Andrew Hudson and Paul Hudson. With over 700 pages, The 2011 Edition is the perfect Ubuntu manual and it covers Ubuntu 10.10 and 11.04 from A to Z, including installing, configuring, desktop applications, system administration, games, Ubuntu as a server, programming in Ubuntu.

Large Internet Service Providers are trying to force us into Usage Based Billing. This is a serious issue that concerns everyone who uses the Internet.

Oracle is seeking "billions of dollars" in damages from Google with its sweeping copyright and patent infringement lawsuit over the use of Java on Android. According to an Oracle court filing released on Thursday, Google attempted to hide the scope of Oracle's damages claims and other related information from public view. But Larry Ellison and company want this out in the open. "Oracle’s damages claims in this case are in the billions of dollars,” the Oracle filing reads, and these claims, it says, are "based on both accepted methodology and a wealth of concrete evidence.”

First of all I’d like to thank TuxArena’s readers for giving good feedback in the first part of this series, which overviews 15 of the tools I consider particularly useful in a console. This article overviews 10 more such tools, and most of them were suggested by you. Screenshots included.

Microsoft seems to have a tough ride ahead, they seem to have lost the patent case for its Office suite. Now open source tools from Open Office.Org and LibreOffice Suites are competing aggressively with MS Office for market share. The main reason is the Open Source tag associated with the first two choices. It is inexpensive and enjoys backing from a large community of developers. Today let us take a look at the latest release from the LibreOffice Suite- the LibreOffice 3.4.

On my site I had a small problems with feeds, I’ve them managed with feedburner and I have one feed for every language, so you can choose to have the feeds in English or in Italian. The problem is that I would like that when a user types http://linuxaria.com/feed it land on my feedburner page for English while typing http://linuxaria.com/feed?lang=it, should land on the Italian feed page. I’ve tried with the wordpress plugin for feedburner, but that it’s good only if you have 1 feed, because it blindly redirect everything to 1 feedburner address, so it’s not a good solution for my 2 bilingual feeds. And so I’ve done it with a rewrite in Nginx.