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毁灭一些过期的孤儿:<
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CalculusTouch hits 1.0 version
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==========
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[CalculusTouch](https://launchpad.net/calculustouch) is a handy Ubuntu SDK application incarnating calculus-specific capabilities into a polished worked-on-detail interface.
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Launching CalculusTouch, presents a good-looking mathematical utility featuring a sober-yet-elegant dark background and orange buttons, mix relaxing the eye, while working the brain.
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CalculusTouch divides its capabilities in two main areas:
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- `Symbolic Calculations` where the user is able to utilize `Evaluate, Derive, Integrate, Taylor Expansion`, etc, as applied to the editable `Expression` field
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- `Function Plot` rendering written-by-user expression as accurate visual constructions
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CalculusTouch has reached **version 1.0**, strengthening its previously-introduced features into a more stable version, while adding various minor fixes and optimizations.
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The 1.0 version comes to meet the user's needs in calculus operations with a more solid feel.
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CalculusTouch's usage has a built-in quality of user-friendliness, (for example) performing a symbolic calculation is as simple as typing an expression in the `Expression` field and hitting a desired button (such as `Derive`, etc), action that renders the result with a fancy look & feel into a dedicated white-ish area.
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CalculusTouch's code is available on [https://code.launchpad.net/~dinko-metalac/calculustouch/trunk](https://code.launchpad.net/~dinko-metalac/calculustouch/trunk)
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via:http://iloveubuntu.net/calculustouch-hits-10-version
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本文由 [LCTT][] 原创翻译，[Linux中国][] 荣誉推出
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译者：[译者ID][] 校对：[校对者ID][]
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[LCTT]:https://github.com/LCTT/TranslateProject
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[Linux中国]:http://linux.cn/portal.php
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[译者ID]:http://linux.cn/space/译者ID
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[校对者ID]:http://linux.cn/space/校对者ID
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[1]:http://iloveubuntu.net/calculustouch-hits-10-version
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[2]:https://launchpad.net/calculustouch
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[3]:https://code.launchpad.net/~dinko-metalac/calculustouch/trunk
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@ -1,29 +0,0 @@
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Editable pack of Ubuntu SDK visuals, GUI Toolkit 04.1, released with improvements
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================================================================================
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The year 2013 is the witness of the exciting emergence of Canonical as the bringer of the next-generation Ubuntu in the open, next generation of software ranging from buttons, dialogs, programming languages, interactions, density of official designs per app, etc, essentially, a sea of beauty aimed at 20 million users.
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**GUI Toolkit** is an interesting **third-party** gathering of Ubuntu SDK pieces, permitting to users, designers and artists to use categorized and clearly-exposed Ubuntu SDK pieces into custom mockups, expressions of concepts, creation of how-tos, etc.
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Basically, the GUI Toolkit is an **editable SVG** file that can be opened with (for example) [Inkscape][1], then harnessed accordingly (the within elements can be dragged, resized, added text to, etc).
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GUI Toolkit has been [updated][2] to version 04.1, refining the now-old recently-released version with friendly descriptions, as well as fixing several faulty elements (lacking proper backgrounds).
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GUI Toolkit 04.1 is available for download on [http://ubuntuone.com/67Ne2uIzyMy0WoiEOgsTFJ][3]
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via: http://iloveubuntu.net/editable-pack-ubuntu-sdk-visuals-gui-toolkit-041-released-improvements
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本文由 [LCTT][] 原创翻译，[Linux中国][] 荣誉推出
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译者：[译者ID][] 校对：[校对者ID][]
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[LCTT]:https://github.com/LCTT/TranslateProject
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[Linux中国]:http://linux.cn/portal.php
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[译者ID]:http://linux.cn/space/译者ID
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[校对者ID]:http://linux.cn/space/校对者ID
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[1]:apt://inkscape
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[2]:https://plus.google.com/104438618743851678614/posts/WTsuZmSZ1oW
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[3]:http://ubuntuone.com/67Ne2uIzyMy0WoiEOgsTFJ
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@ -1,52 +0,0 @@
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Indicator-Synapse Brings Spotlight-Like Search Bar to Linux
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===========================================================
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**Take a semantic Zeitgeist-powered application/file launcher and bind it to the panel. What do you get? Something worth putting in the spotlight, that’s what.**
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_Indicator-Synapse_ is a new attempt at presenting results from the [powerful application/file launcher Synapse][1].
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Comparisons with Apple’s Spotlight search feature are somewhat valid. Both are menu based search tools that show a ‘top hit’ and results from files, applications and the web.
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But you don’t need to be running a Mac-themed Linux distro to use it (though I’m sure it looks great on Pear OS, where it’ll be rocking up as default). It runs just fine on Ubuntu and its siblings.
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###Unity Dash Does The Same, Right?
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The need for such a tool on the Unity desktop is lessened somewhat given the versatility of the Dash, but some of you might like it anyway.
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Drawback being that you can’t open it with a keyboard shortcut (not least one that I can find). That makes it a little less useful; being able to tap a key combo and start searching without needing to use the mouse is what makes Spotlight on OS X (and the Unity Dash) so handy.
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But still, early days.
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###Install Indicator Synapse in Ubuntu
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Indicator-Search is currently in development so only install it if you’re okay with bugs, crashes and unexpected behaviour.
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Installing it requires adding two PPAs to your software sources. The first contains builds of Indicator Synapse for Ubuntu 12.04 & 13.04. The second has a dependency needed by the app that isn’t present in its own PPA.
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Open a new Terminal window and enter:
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sudo add-apt-repository ppa:elementary-os/unstable-upstream
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sudo add-apt-repository ppa:birdie-team/stable
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sudo apt-get update && sudo apt-get install indicator-synapse libkeybinder-3.0-0
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Now search for Indicator-Synapse in the Dash and launch.
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To remove the application simply search for ‘indicator synapse’ in the Ubuntu Software Center, click on its listing, then the ‘remove’ button
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via: http://www.omgubuntu.co.uk/2013/09/spotlight-like-tool-coming-to-pear-os-other-distros
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本文由 [LCTT][] 原创翻译，[Linux中国][] 荣誉推出
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译者：[译者ID][] 校对：[校对者ID][]
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[LCTT]:https://github.com/LCTT/TranslateProject
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[Linux中国]:http://linux.cn/portal.php
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[译者ID]:http://linux.cn/space/译者ID
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[校对者ID]:http://linux.cn/space/校对者ID
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[1]:https://apps.ubuntu.com/cat/applications/synapse/
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@ -1,69 +0,0 @@
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JUST IN: BlackBerry confirms 4,500 jobs cut, slashes device portfolio
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================================================================================
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> Summary: No, Planetary Resource isn't kidding. It’s working on using Linux, open-source software, and commercial off-the-shelf hardware to build the first robotic asteroid miners.
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When I was a kid in the 60s, books such as Miss Pickerell on the Moon, On the Trail of the Space Pirates, and Robert A. Heinlein's The Rolling Stones had me dreaming of flying rockets to asteroids with my trusty Geiger counter and pick-axe in hand. It was science fiction then. [Planetary Resources][1] is on its way to making it science-fact within the next few years.
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*By 2014, Planetary Resources first Linux-powered asteroid prospecting robots will be in orbit. (Credit: Planetary Resources)*
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At a [LinuxCon][2] session in New Orleans, Planetary Resources' Marc Allen, a Senior Embedded Systems Engineer, and Ray Ramadorai, Principal Avionics Engineer, explained that the company is dead serious about making asteroid mining real. The company’s principals include [X-Prize Foundation][3] founder Peter Diamandis; former NASA Flight Director Chris Lewicki; [Virgin Galactic's][4] Sir Richard Branson, and Google's Eric Schmidt and Larry Page. The staff includes numerous folks from NASA and JPL. In short, the company has real expertise and financial backing. The group is also using crowdsourcing both for resources and to drum up support for its plans.
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At the same time, Planetary Resources wants to mine asteroids on the cheap. So according to Allen, the company plans to use commercial off-the-shelf (COTS) hardware to make low cost, highly reliable spacecraft. Once these spacecraft become commodities, they can rapidly be modified to keep pace with modern technology. In addition, the failure of any one spacecraft will not be catastrophic. Ramadorai explained, "This approach is crucial to commercial space exploration and development, and is a key part of the Planetary Resources strategy."
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A COTS spaceship's computer is also much cheaper. Today, a standard space probe uses a 133Mz PowerPC RAD750 with 128MBS of RAM, and 256K of EEPROM memory. At a cost of $20,000, this radiation- hardened computer is "insanely expensive." Allen believes that "We can use something like an 1.6GHz Intel Atom Z530processor at 1/200th [of] the cost."
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Linux and open-source software fits in because it saves the company the costs of reinventing the wheel in many basic system functions and is much cheaper than traditional spacecraft software. "Traditional missions cost millions," said Allen. They're very risk conservative. They use VxWorks or other commercial RTOS (real-time operating systems) to create a unique operating system for each space vehicle."
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With Linux, however, Planetary Resource can build a common spaceship operating system more cheaply and much more easily. Almost all software used in the current generation of spacecraft is custom made and manually coded. That's expensive.
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In addition, the company considers virtualization is very important for their spacecraft, since decoupling the software and hardware virtualization will make security and fault isolation much easier.
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Planetary Resources won't be using Linux only in space. "Linux can be everywhere in our stack, said Allen. "There will be a single board computer running Linux on the spacecraft and on the ground station, a single board virtual machine clone." This will better enable engineers to troubleshoot problems harmlessly on the ground rather than address them dangerously in space.
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## Hubble snaps amazing Comet ISON speeding toward Earth encounter (Gallery) ##
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In addition, Planetary Resources will use Linux and other open-source programs, such as [Git][5] and [Jenkins][6] to manage its software projects. The company will also be using [Monte-Carlo simulations][7] on open-source-based cloud using [QEMU][8] to work out the best, and most affordable, asteroids to mine.
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Affordable in this case means how easy they'll be to intercept. According to the pair from Planetary Resources, we’re currently aware of at almost 600,000 asteroids today, and there may be as many as 1.5-million of them.
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Most of these, of course, are in the [asteroid belt][9] between Mars and Jupiter. But, there are over 20,000 near-Earth asteroids that are larger than 100-meters in diameter. Of these, 17 percent, 3,400 are energetically closer than the moon. It's these relatively close asteroids that Planetary Resources will be "prospecting."
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The company will do this with its ARKYD series of robot spaceships. The first of the [ARKYD 100 Series][10], should be in orbit in 2014. These are microwave-oven-sized commercial space telescopes that will look for asteroids that may be likely sources of water or valuable minerals.
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Promising asteroids will be followed by ARKYD 200 Series fly-by missions for a closer look. Then, once the most valuable asteroids have been spotted, the 300 ARKYD series will land—dock, actually—and get to work mining the asteroid.
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Why is Planetary Resources doing this? For the money.
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A 140-meter long asteroid, like 2011 AG5, which will approach Earth in 2040, could contain more platinum than all the platinum mined on Earth to date. The price for platinum, by the by, is currently about $1,427 per ounce.
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It’s possible, then, that a single asteroid could be worth tens of billions of dollars. So if you could mine it for even a a billion or two, you'd still have enough to buy your own private island.
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In addition, Planetary Resources is mining for water, to be used to fuel both other near-Earth orbit and deep space robot asteroid mining spaceships.
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Sound interesting? Allen concluded by saying that "[We're looking for a few good asteroid miners.][11]" In particular, the company is looking for software and electrical engineers. If you love space and open-source software, this may be the job for you.
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via: http://www.zdnet.com/penguins-in-space-asteroid-mining-and-linux-7000020989/
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本文由 [LCTT][] 原创翻译，[Linux中国][] 荣誉推出
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译者：[译者ID][] 校对：[校对者ID][]
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[LCTT]:https://github.com/LCTT/TranslateProject
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[Linux中国]:http://linux.cn/portal.php
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[译者ID]:http://linux.cn/space/译者ID
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[校对者ID]:http://linux.cn/space/校对者ID
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[1]:http://www.planetaryresources.com/
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[2]:http://events.linuxfoundation.org/events/linuxcon-north-america
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[3]:http://www.xprize.org/
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[4]:http://www.virgingalactic.com/
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[5]:http://git-scm.com/
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[6]:http://jenkins-ci.org/
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[7]:http://www.palisade.com/risk/monte_carlo_simulation.asp
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[8]:http://wiki.qemu.org/Main_Page
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[9]:http://www.space.com/16105-asteroid-belt.html
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[10]:http://www.planetaryresources.com/products/
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[11]:http://www.planetaryresources.com/careers/
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@ -1,37 +0,0 @@
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Sigil successfully moved to GitHub, searches for new to-contribute-to coders
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================================================================================
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Sigil is a free open-source EPUB editor, containing a significant amount of features related to ebook editing, permitting a reliable in-depth EPUB editing via a single application.
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As functionalities, Sigil features:
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- full EPUB 2 and UTF-16 support
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- WYSIWYG editor
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- multiple handy views, including `Book`, `Code` and `Preview` views
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- ability to generate table of contents
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- more than 200 entries for its advanced metadata editor
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- spell checking
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- direct editing experience
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Recently, **Sigil's John Schember** [announced][1] the migration of Sigil's development from Google Code to GitHub, [approach][2] aimed at **increasing** the number of **participants** in the development of the handy editing tool.
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Sigil has been completely moved to GitHub, yet, the project is still searching for active code contributors, in order to shift Sigil from an uncertain-future ground (on which it presently stands) to an active project where other developers submit code, features and ideas.
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Sigil is fully open for participation on [https://github.com/user-none/Sigil][3]
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via: http://iloveubuntu.net/sigil-successfully-moved-github-searches-new-contribute-coders
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本文由 [LCTT][] 原创翻译，[Linux中国][] 荣誉推出
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译者：[译者ID][] 校对：[校对者ID][]
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||||
[LCTT]:https://github.com/LCTT/TranslateProject
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||||
[Linux中国]:http://linux.cn/portal.php
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[译者ID]:http://linux.cn/space/译者ID
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[校对者ID]:http://linux.cn/space/校对者ID
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[1]:http://sigildev.blogspot.ro/2013/09/sigil-status.html
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[2]:http://iloveubuntu.net/powerful-ebook-editor-sigil-moved-new-development-area-looking-code-contributions-and-active
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[3]:https://github.com/user-none/Sigil
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