Free in a few seconds software for linux

Light Speed! project is an interactive relativistic simulator.
Light Speed! is an OpenGL-based program which illustrates the effects of special relativity on the appearance of moving objects.
When an object accelerates past a few million meters per second, these effects begin to grow noticeable, becoming more and more pronounced as the speed of light is approached.
These relativistic effects are viewpoint-dependent, and include shifts in length, object hue, brightness and shape.
Main features:
- Real-time interactive viewing
- 3D object importer
- Snapshot exporter
- Special Relativity Scene (SRS) exporter
- Reference geometry
- Independent toggles for the four relativistic effects
- Numerical camera location + target readout and input
- Switchable background color

ASCEND is a flexible modelling environment for solving hard engineering and science problems. It offers:
- an object-oriented model description language for describing your system,
- an interactive user interface that allows you to solve your model and explore the effect of changing the model parameters, and
- a scripting environment that allows you to automate your more complex simulation problems.
The project was originally written at Carnegie Mellon University in the 1980s and includes powerful and reliable solver routines that analyse the structure of your model and can solve thousands of simultaneous nonlinear equations in a few seconds on everyday computer hardware. It is under active development and is licensed under the GNU General Public License ensuring that it is free software and will remain free.

Kickoff QT desktop panel for KDE is the best effort effort to maximize the users experience.
Kicker QT requires less clicking to launch programs because it uses the mouse over effect which is lacking in other menu launchers. it also loads plugins and uses qtcurve which is lacking in other menu launchers for that eye candy we like. The history feature keeps track of recent programs and files/documents in an organized display which is lacking in other menu launchers. Favorites is as nearly as quick as quick launcher which is lacking in other menu launchers in that it required one click.
Note: Other menu launchers includes Vista.
You can also adjust the size of the menu unlike older menu launchers which become cluttered over time and explode all over your desktop. ;^D
WARNING this is a Force install at the time and will mutilate KDEbase, not for the faint of heart! I am working on the entire KDE 3.5.7 KDE QT which will be debugged for personal use with development on mng animation.
Use this at your own risk!!!
Reboot after installing launch button respones slowly the first few seconds.
Enhancements:
- replaced suse button with FedoraBubbles kbfx button

Time::Convert is a Perl interface to converting unix seconds to years, days, hours and minutes.

SYNOPSIS

use Time::Convert;
my $convert = new Time::Convert;

EXAMPLE

use Time::Convert;
my $convert = new Time::Convert;
$REPLY = $convert->ConvertSecs(time);
print($REPLY);

KSniffer is a sniffing application for KDE. KSniffer is in the starting release... Not yet released as stable, not for crashed, but for few feature.
Enhancements:
- add/remove KSniffer in the system tray bar
- added KSniffer option dialog:
- sniffer settings:
- display packets after you stopped capture available
- capture settings:
- stop manually
- stop after X packets
- stop after X bytes/kilobytes/megabyes/gigabytes
- stop after X seconds/minutes/hours/days
- added data for TCP detail display
- added pause/continue capture
- reading ports name from system (file /etc/services)
- quick search added (dependancy from kdelibs >= 3.3)
- better management for loading file
- better management for temporary file
- root privileges dont need anymore for the GUI
- removed sorting feature cause of bad performing for lots of packets
- getting information on IP: can be detected some networking information
- on source or destination selected IP:
- whois
- traceroute
- ping
- dig
- host
- nslookup
- compiling on FreeBSD and some other Linux platform
- fixed boring bugs
Enhancements:
- new icon and splashscreen thanks to Carmine De Rosa
- fixed crash when you click on a captured packet after you tryed to open a file, but you didnt open it
- give the port name to UDP and TCP connections getting them from /etc/services file
- show raw bytes of a selected packet from the list of the captured one
- changed "sniff" application name to "ksniff" to avoid name conflicts with other sniffing applications
- fixed bug that avoid saving sniffed data quitting from the application
- get the list of the network interfaces that have different MAC addresses
- check ksniff permissions to avoid users think KSniffer doesnt work: Debian/*ubuntu/OpenSuSE remove
- the suid bit: a warning dialog will appear in case ksniff ha not found or has not the SUID bit

snmpmondb project can track network traffic usage for local and remote hosts via SNMP. A few simple Web pages are included to show the resultant data in various graphs.

Red-Piranha is an open source search system that can actually learn what you are looking for. It lets you go everywhere , find anything , understand everything.
Because it is open source , it can integrate with any system. Because you can use it as a web page , command line or XML- WebService , it will work with most languages , including Java , Perl , C#/.Net and PHP. As a Java based program , it will run on any platform including Windows , Linux / Unix and Mac.
Main features:
- Personal Search Engine for your Desktop (Windows , Linux and Mac).
- Intranet Search Engine - Search your Company or College Intranet.
- Part of your Development Project - Have search abilities up and running in a few minutes.
- To provide Search facilities on your website.
- As a P2P search engine.
- In conjunction with a wiki, as a knowledge / document management solution.
- Scan a set of websites for the data you want (e.g. Search Job sites on a hourly basis).
- Explore the Semantic web using RDF.
- Search RSS feeds for the information you want.
- Search your Companies systems (including SAP , Oracle or any other Database / Data source).
- Provide a back end for searching in your App (Web , Swing , SWT , Flash, Mozilla-XUL, PHP , Perl or even c#/.Net) .
- Document Management for PDF, Word and other Docs.
- As a Webservice to provide search information
- As a command line tool , to give searching power to your scripts.
- Provide a Search facility for your project documentation.
Using
To use Red-Piranha - open your favourite web browser and point it at http://localhost:8080/RP . Within a few seconds , you should see the Red-Piranha start screen. This will have three items of interest
- A Text box , where we enter the information to add or search
- An add information button - to tell Red-Piranha about new information
- A Search button - to carry out a search.
Before we can search , we must tell Red-Piranha we information we are interested in. This is as easy as putting the piece of information we want to add (e.g. the folder c:temp) in the search box and pressing the Add information button. A message will be displayed saying that your information is being added and will be available to search shortly. For more information , look in the logs at TOMCAT_HOMEWebappsRPlogsrp.log
Examples of things we can add to Red-Piranha are
- A folder (e.g. C:Temp). All files in both this folder and *all* its subfolders will be added.
- An individual file. This file can be text , a web page , a word document , or pdf document. For binary files (like word , which are not plain text) , Red-Piranha will scan the file for recognizable text and add that.
- A Web page. Red-Piranha will add this web page , *and* web pages it links to.
- A Google Search (e.g. http://www.google.com/search?q=some+thing?m=100). Red-Piranha will get the results of the google search , and add information on the pages it links to.
- An XML file (including RSS feeds) , either on disk or over the web.
- Favourites / Bookmarks folders - Red-Piranha will index the web pages that these favourites point to.
Adding information can take anything from a few milliseconds , depending on the amount of information being added. Once added, Red-Piranha will check on a regular basis to see if the information added has changed and re-index if required. Your information is now available to be searched.
To do a search , put the item you want to search for into the textbox and press search. Red-Piranha will show the search results on the screen. Clicking on the link beside the search results will show you the original information (as long as you have access to it).
From version 0.3 onwards , Red-Piranha can learn what search results you are interested in an improve your future searches. To give Red-Piranha feedback and help it learn what you are interested in , click on any of the links on the search results page. Red-Piranha makes a note of your choice , which is used to adjust the search results later.