Atmosculator is a freeware Mac OS X application, written using Cocoa & Objective-C, that calculates key properties of the Earth’s atmosphere as a function of altitude using the 1976 Standard Atmosphere Model. It can be used to determine the pressure, temperature, density, viscosity and other parameters up to an altitude of 278,385 feet (84.852 km). The 1976 model is the latest of a number of versions developed jointly by NOAA, NASA and the USAF. The complete model includes properties at even higher altitudes, but these regions are more complex and are not included here.

Atmosculator also provides the option of calculating properties under non-standard conditions - i.e. when the temperature differs from that of the standard model.  

Although the values provided by Atmosculator have been carefully checked against the original U.S. Government source, their accuracy cannot be guaranteed, so please use this tool at your own risk.

Atmosculator includes extensive Help on the basis of the model and a mathematical derivation showing how the properties are calculated. For your online convenince, this description of the Standard Atmosphere Model is reproduced here.

 

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Transmission has been built from the ground up to be a lightweight yet powerful BitTorrent client. Its simple, intuitive interface is designed to integrate tightly with whatever computing environment you choose to use. Transmission strikes a balance between providing useful functionality without feature bloat. Furthermore, it is free for anyone to use or modify. Transmission is open source (MIT license).

These days, bandwidth is a precious commodity. Transmission allows you to ration this commodity efficiently. You might want to queue your torrents for maximum performance. Or throttle their speed during peak periods. Transmission easily lets you do both, and thus only works its hardest when you want it to.

Support for Growl notifications and dock badging keep you updated with what’s going on so you can get back to doing more important things.

If you are interested in helping out the Transmission project in any way, we encourage you to head over to our development page. The current developers welcome anybody who is interested in implementing new features, documentation, or translations.
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Portable Sunbird is the Sunbird Project cross platform standalone calendar and task manager application, packaged as portable application so you can carry around with you on any portable device, USB thumb drive, iPod, portable hard drive, memory card, other portable device (also on your internal hard disk) as long as it has 45 MB of free space and use on any Mac OS X computer, taking your calendar and task list with you.
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OpenLaszlo is an open source platform for creating zero-install web applications with the user interface capabilities of desktop client software.

OpenLaszlo programs are written in XML and JavaScript and transparently compiled to Flash and soon DHTML. The OpenLaszlo APIs provide animation, layout, data binding, server communication, and declarative UI. An OpenLaszlo application can be as short as a single source file, or factored into multiple files that define reusable classes and libraries.

OpenLaszlo is “write once, run everywhere”. An OpenLaszlo application developed on one machine will run on all leading Web browsers on all leading desktop operating systems.
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Docker… Tired of your dock? Spice things up a little with Docker. Access dock settings from a simple interface, and Leopard users can customise the style and color of their dock too!

Docker allows Leopard users to switch between 2D or 3D dock, or customize the Dock further by individually changing the color of and style of Dock parts. If you are feeling creative, you can easily select your own images, or a vast array of styles from the internet

Docker also lets users of OS X 10.2 to 10.5 access settings normally hidden out of sight. Choose from a larger range of dock sizes, extra animation options and more. Docker now also includes options to prevent users altering Dock settings and contents.
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X3Watch is accountability software designed to help with online integrity. When you browse the internet and access a site which may contain questionable material, the program will record the site name. A person of your choice (an accountability partner) will receive an email containing all questionable sites you may have visited. This information is meant to encourage open and honest conversation between friends and help you be more accountable to your online adventures.
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What’s Joost? It’s video - more than 15,000 shows, with more added daily. It’s online - all you need is a broadband internet connection. And it’s free. So what are you waiting for?
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G*Power is a statistical power analysis program. It is a major extension of, and improvement over, the previous version, covering many different statistical tests of the F, t, chi-square, and z test families as well as some exact tests. G*Power 3 provides improved effect size calculators and graphics options, it supports both a distribution-based and a design-based input mode, and it offers five different types of power analyses. Like its predecessors, G*Power 3 is free.
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Turkey or Not Widget… You’re the critic, you rate the movies!

A widget which feeds you movies from turkeyornot.com. Rate them either ‘turkey’ or ‘not’ and see the overall rating. Click on the poster and you’ll be take to the turkeyornot.com comments page where you can see what others are saying and add your own comments.
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SizzlingKeys lets you control iTunes without leaving your current application. Control all aspects of iTunes with hot keys that are fully-customizable via an intuitive Preference Pane plug-in.
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