Halleys Comet Orbital Period

vec2orbElem(rs,vs,mus) converts positions (rs) and velocities (vs)of bodies with gravitational parameters (mus) to Keplerian orbital elements.INPUTS: rs: 3n x 1 stacked initial position vectors: [r1(1);r1(2);r1(3);r2(1);r2(2)r2(3);...;rn(1);rn(2);rn(3)] or 3 x n matrix of position vectors. vs: 3n...

CitusCMS is a small, fast and free content management system that is very easy to operate, the CMS is designed especially for operators of small and medium-sized websites,because it doesn't require a long training period in a system. CitusCMS includes all functions that users expect from a CMS,...

popupMsg generates HTML and javascript to show a box with a message that can close and disappear from the page when the user clicks in a button or after a given period of time.CSS styles can be used to configure the presentation of the message box details.


Platforms: PHP

Little PHP Templater is designed to check if a previously processed template output file exists and it was not generated more than a given period of time ago. When this free template is processed, the cache file will be updated if it did not exist or had expired. It can also retrieve the cached...


Platforms: PHP

This plugin automatically closes comments on blog entries after a user- configurable period of time. It has options which allow you to keep the discussion open for longer on older posts which have had recent comments accepted, or to override the timeout on a post-by-post basis.Note: PHP 4 is no...


Platforms: PHP

Gives users the option to be sent a notification if they have been inactive for a set period of time.This was originally developed for the Transformation Team to send people automatic reminders if they have not been doing the lessons in the course for some time.


Platforms: PHP

Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, and the amplitude of the swing. It's easy to measure the period using the photogate timer. You can vary friction and the strength of gravity. Use the...


Platforms: Mac

iPeriod?*A* now runs on your mac! Browse your calendar, view your notes and record symptoms all on one screen! Let iPeriod?*A* keep track! The most customization and more than 80 symptoms and 28 skins (all free)! Now with a Community FORUM! Learn, share, and connect with the global iPeriod...


Platforms: Mac

gorbital is a atomic orbital viewer written using gtkmm (gtk--). gorbital displays a 3d interactive view of a electron orbitals. It is meant to be an open source viewer much like Orbital Viewer by David Manthey (http://www.orbitals.com/orb/).


Platforms: *nix

Reusable Django application that helps you to deliver fresh media files, even if their expiry period is really long. To do this, the application provides a template tag that adds a small hash to the URL of each served file. This hash depends on the file metadata or content, so if it is changed,...


Platforms: *nix

HookBox is a Comet server and message queue library that tightly integrates with your existing web application via web hooks and a REST interface. #md5=71f9a31be42861889ab0cd0ca1955ac9


Platforms: *nix

hd-idle is a utility program for spinning-down external disks after a period of idle time. Since most external IDE disk enclosures don't support setting the IDE idle timer, a program like hd-idle is required to spin down idle disks automatically.


Platforms: *nix

Deltanet has been developed over a period of 10 years and is now used by several companies as their main business software application. Deltanet is an integrated Accounting Software Package that includes: A/R, A/P, Invoicing, Inventory, Payroll and General Ledger. Deltanet emphasizes strong...

IntraSmart allows organizations to set up an Intranet in a short period of time. Our web site is http://www.mindbridge.com Features Include: Easy to Use and Administer Totally Customizable Graphical User Interface Runs on Windows NT/2000, Linux, and Sun Solaris Highly Scalable Database Driven -...

Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides and satellites), play snooker (on a full size table) and experiment with "Laws of Motion" simulations (free worksheets provided for pendulum, Newton's cradle, terminal velocity and Galileo's...


Platforms: Windows

IntraSmart is a suite of software applications that allows organizations to set up an Intranet in a short period of time. The applications include: group calendar, company and departmental announcements, form generator, discussion board, company directory, home page generator and document...


Platforms: Windows, Mac, *nix

Allow for software evaluation period using time, date or usage expiry. Enable the fullversion by password or keyfile. Build different levels of functionality into your product. Protection is provided by a small redistributable COM object for VB, VBScript, VC, Delphi etc. The password creation app...


Platforms: Windows

Winner of Best Business Application Award at the 2003 Shareware Industry Conference Awards. Pay by any pay period; hourly, salaried, commissioned, non-employee workers; prints Checks, 941, W2s, 1099-MISC forms and reports galore! Built-in data backup and restore with file compression. You can pay...


Platforms: Windows

PropertyAnalyzer projects the return on investment (ROI) over a 30 year period for a rental property based on 20 income and expense inputs that you provide. This analysis includes configurable annual income and expense increases. Free 30-day trial.


Platforms: Windows

IntraSmart allows organizations to set up an intranet in a short period of time. Easy to use and administer. A totally customizable graphical user interface runs on Windows NT/2000/XP, Linux, Mac OS X, and UNIX platforms. Highly scalable; database driven - Oracle, Microsoft SQL Server and...


Platforms: Windows, Mac, *nix