Group items tagged

Overview

Tor is a network of virtual tunnels that allows people and groups to improve their privacy and security on the Internet. It also enables software developers to create new communication tools with built-in privacy features. Tor provides the foundation for a range of applications that allow organizations and individuals to share information over public networks without compromising their privacy. Individuals use Tor to keep websites from tracking them and their family members, or to connect to news sites, instant messaging services, or the like when these are blocked by their local Internet providers. Tor's hidden services let users publish web sites and other services without needing to reveal the location of the site. Individuals also use Tor for socially sensitive communication: chat rooms and web forums for rape and abuse survivors, or people with illnesses.

Share Your Sounds Capture a voice, moment or music in seconds or upload audio you’ve already created. Everyone has sounds to share.Now you can share yours.

A particle carrying a charge of 1 coulomb and passing through a magnetic field of 1 tesla at a speed of 1 meter per second perpendicular to said field experiences a force of 1 newton, according to the Lorentz force law. As an SI derived unit, the tesla can also be expressed as (in SI base units).[3] Units used: A = ampere C = coulomb kg = kilogram m = meter N = newton s = second T = tesla V = volt Wb = weber [edit] Electric vs Magnetic Field

The difference between magnetic field strength (in tesla) vs electric field strength can be confusing.[citation needed] The difference is that a force of magnetic field on a charged particle is generally due to the charged particle's movement[4] while the force imparted by an electric field on a charged particle is not due to the charged particle's movement. This can be seen by looking at the units for each. Electric field is N/C, while magnetic field (in tesla) can be written as N/(C*m/s). The difference between the two is m/s, or velocity. This can further be seen by noting that whether a field is magnetic or electric is dependent on one's relativistic reference frame (that is: one's velocity relative to the field).[5][6] In ferromagnets the movement creating the magnetic field is the electron spin[7] (and to a lesser extent electron orbital angular momentum). In current carrying wire (electromagnets) the movement is due to electrons moving through the wire (whether the wire's straight or circular).

Twitter proposait un flux RSS pour chaque compte Twitter et ne le montre plus désormais. Voici comment le retrouver... Vous pouvez suivre les tweets de n'importe quel compte via votre lecteur de flux RSS, si vous trouvez ça plus simple ou efficace. Il suffit d'aller à l'URL suivante : http://twitter.com/statuses/user_timeline/{username}.rss Par exemple pour mon compte WebRankInfo cela donne : http://twitter.com/statuses/user_timeline/webrankinfo.rss TweetSmarter, qui a proposé cette astuce, donne également un bookmarklet pour vous simplifier la vie. Dans le même genre, voyez l'astuce pour trouver le flux RSS des posts Google+ de n'importe quel compte Google+ (public).

What is My N3RD? My N3RD (Pronounced Nerd) turns your smartphone into a remote control for every gadget, vehicle and appliance you own. It works with the My N3RD app to upgrade ANY switch into a wireless controlled, programmable, and automatic smart switch, updating all of your devices into intelligent connected ones. Connect and control devices directly. No internet connection or router required.   Works with DC and mobile applications such as Cars, RVs, and boats. With My N3RD, you aren’t just limited to home appliances. Connects to any switch, enabling you to upgrade virtually anything— not just simple appliances like fans and lights. Simple setup. You only need to configure functions in the App once, and you can reuse them again and again. My N3RD is equipped with two relays and two inputs that can be used with external switches and physical switches to create a wide variety of uses. My N3RD is smart. You can program My N3RD to act without your intervention. Use the app to set timers for appliances and electronics. Although My N3RD has direct connect capability, it can also be connected through your home WiFi so you can control your devices from anywhere. Upgrade anything to an Internet of Things device.

Public switched telephone network

is the network of the world's public circuit-switched telephone networks. It is a worldwide network of telephone lines, fiberoptic cables, microwave transmission links, cellular networks, communications satellites, and undersea telephone cables connected by switching centers, which allows any telephone in the world to communicate with any other. Originally a network of fixed-line analog telephone systems, the PSTN is now almost entirely digital in its core and includes mobile as well as fixed telephones.

(PSTN)

OpenLeaks

OpenLeaks is a project that aims at making whistleblowing safer and more widespread. This will be done by providing dedicated and generally free services to whistleblowers and organizations interested in transparency. We will also create a Knowledge Base aiming to provide a comprehensive reference to all areas surrounding whistleblowing.

developer site for iGoogle, Google's personalized homepage. Gadgets on iGoogle now support canvas view and OpenSocial, a common set of APIs, HTML, and JavaScript designed to let you easily build social applications. Build and test your gadget in the new sandbox for iGoogle.

iGoogle gadget dashboard to manage gadgets created by you and browse gadgets developed by others.

A HTML DOM parser written in PHP5+ let you manipulate HTML in a very easy way! Require PHP 5+. Supports invalid HTML. Find tags on an HTML page with selectors just like jQuery. Extract contents from HTML in a single line.

// Create DOM from string $html = str_get_html('<div id="hello">Hello</div><div id="world">World</div>'); $html->find('div', 1)->class = 'bar'; $html->find('div[id=hello]', 0)->innertext = 'foo'; echo $html; // Output: <div id="hello">foo</div><div id="world" class="bar">World</div>

Mini-bots

map out building interiors

The rolling droids are being developed by Georgia Institute of Technology, the University of Pennsylvania, and the California Institute of Technology/Jet Propulsion Laboratory (JPL). Equipped with two cameras and laser scanners, they can autonomously explore hallways in an unfamiliar building, detecting doors and windows, and create a map for users such as soldiers or firefighters. The project is part of the Micro Autonomous Systems and Technology (MAST) program and is being sponsored by the Army Research Laboratory. The program is aimed at developing palm-size machines that can hover in place, enter buildings, and perform other insect-like stunts while gathering data and relaying it to human controllers.