Slashdot is powered by your submissions, so send in your scoop


Forgot your password?

Submission Summary: 0 pending, 43 declined, 9 accepted (52 total, 17.31% accepted)

DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. Check out the new SourceForge HTML5 Internet speed test! ×

Submission + - Wired has a story on the Integrated Space Plan's 100 year view of space planning (

garyebickford writes: Wired Magazine has posted an article about the new 2015 version of the Integrated Space Plan, updated 14 years after the last version and descended directly from the original 1989 version. The original one was printed in the thousands, distributed by Rockwell, and appeared on walls throughout the space industry. One even hung behind the NASA administrator's desk. The new one is prettier, great for dorm room walls and classrooms, and Integrated Space Analytics, the company behind it, promises to expand their website into an up-to-date, live interactive tool. This is a great new beginning after over 30 years.

Submission + - Updating the Integrated Space Plan (

garyebickford writes: Space Finance Group (in which I'm a partner) has launched a Kickstarter to fund updating the "famous Integrated Space Plan", created by Ron Jones at Rockwell International in the late 1980s and early 1990s, and can be found on walls in the industry even today. The new Plan will be a poster, but also will provide the initial core data for a new website. The permanent link will be As additional resources become available the website will be able to contain much more information, with (eventually) advanced data management (possibly including sources like Linked Data) and visualization tools to become a resource for education, research, entertainment, and business analytics. The group also hopes to support curated crowdsourcing of some data, and is talking to Space Development companies about providing data about themselves. They hope to be able to construct new timelines and show the relations between events and entities — companies, agencies, people, etc.

Submission + - How 'private' is TOR, really? ('hidden network', indeed!) (

garyebickford writes: I have a suspicion that TOR is nowhere near as private as is generally assumed. We can assume that some fraction of all the nodes out there are run by what I'll term 'spies' — entities who want to know things about whoever's using TOR. The question is, what fraction is sufficient to be able to reconstruct missing pieces, and figure out with a high degree of reliabillity what the 'real' source and destination are, assuming those 'spy' nodes can all talk to each other? There is some good math for doing such reconstructions of networks where most of the nodes are unknown. I suspect that the necessary fraction is somewhere near 10%. It's quite possible that your friendly neighborhood 3-letter spook shop knows a lot more about what's going through the TOR network than any of us, the great unwashed, realizes. So, how much of the TOR network needs to be 'cooperating' to significantly compromise privacy?

Submission + - Would you support National Space Society videos on the importance of space? ( 1

garyebickford writes: "I didn't know where to put this (it's not really science, where most space stuff goes), but I think it's important so I'm asking Slashdot: how important is space development in your opinion? How would you tell people about it? National Space Society wants to produce several videos about the importance, and the potential, of commercial space development.

I think space development could be the most important subject today. The potential of space industry for relieving various resource issues on Earth (including even possible 'climate change' and other ecological concerns) could make many of the contentious issues of the day moot. Just as the 'discovery' of the New World and sudden availability of large amounts of various resources disrupted the economic and political systems of the entire world, so also space could completely change the game on Earth again. I think this is not only overall a good thing, I think it is inevitable and we should be planning for it"


Submission + - An open peer-to-peer replacement for Facebook?

garyebickford writes: "I'm not a big Facebook user (and I keep the privacy settings tight). I also don't like the fundamental model, where storage of one's life history is dependent on a single for-profit company whose interests do not coincide with mine. It's as if my shoebox of old pictures had a Facebook gateway on it.

So, what would be the complications involved in making a peer-to-peer, server agnostic tool with some of the features of Facebook and a possibility of achieving the necessary network effect? Obviously there are costs and security questions, so I don't think it means pure peer-to-peer as in BitTorrent. I'm thinking more like a network of Jabber servers run by many vendors. I can choose a company that I trust to retain my data, at a cost that I am willing to pay (whether in advertising or cash or whatever). Since there would be no technical barriers, the vendor market could remain competitive and vendors would tend to provide better service and support.

The key is probably the protocol for finding 'friends' and transferring the proper amount of data. Could it be based on jabber's networking model? I would think that for privacy all the data would have to be transferred directly from each vendor's server to the browser, unless it is passed through intermediary vendors in encrypted form. IMHO this could be a very cool project."

Submission + - Multilingual programming languages - why or why not?

garyebickford writes: "I've thought about this a few times. With all multilingual work on web pages, maybe it is time to make programming languages multilingual. I think it would be relatively easy for the core language — just as in web pages, provide a set of translation files for each 'human' language, and at the top of the source file have a directive to use whichever human language is the default. Then editors could pick up that directive, and display the source code in that language or any other.

Handling source code libraries could be done in a similar manner, although it would be significantly more complicated. And comments — well those might be problematical. And it might be necessary for the programmers to include translation files for variable names. But using this method, someone programming in French and someone programming in English, for example, could both work on the same code base in the language they are most comfortable with, and the code would make sense to both."

Submission + - Swiss to build orbital cleaning satellite (

garyebickford writes: "As The ETH Lausanne says:

The proliferation of debris orbiting the Earth – primarily jettisoned rocket and satellite components – is an increasingly pressing problem for spacecraft, and it can generate huge costs. To combat this scourge, the Swiss Space Center at EPFL is announcing today the launch of CleanSpace One, a project to develop and build the first installment of a family of satellites specially designed to clean up space debris.

This looks like a reasonable method, although I think that at some future point it might be useful to just put at least the smaller stuff in a higher 'parking orbit' for later destruction or recycling. This way you wouldn't lose one vacuum cleaner for each satellite retrieved. And much later down the road, it might be useful to collect bigger units — expended boosters, for example — as raw materials and/or containers. The cost of getting the mass into space has already been spent. I optimistically foresee a future where much of the stuff sent into orbital space has a recycling function built into the design."

Submission + - Is there a use for tablets for geeks? 2

garyebickford writes: "I'm just wondering — is there any real use for a fondleslab for a programmer or sysadmin? I just don't see what the use of these things is, even for the great unwashed. I have on occasion used my cell phone to log in to a server and do minor maintenance, but I would not use the phone for programming or editing beyond some triviality like a hosts file except in extreme circumstances. Touchpads are too big to fit in a pocket, with resolution too low to do any useful work (for biz types maybe a small spreadsheet or something, but that's a different group), and without a cover they seem to me to be too vulnerable to scratching and breakage.

So, please enlighten me with all your collective wisdom, and warm me with your flames."

Submission + - Training materials - Mercurial, Trac, dotProject? (

garyebickford writes: "My company looks like it's going to adopt the dev environment I've been using for a while, which is based on integrating Mercurial, Trac and dotProject. So I'm thinking that they are soon going to want to know how to do things. I can't be the first one in this position, so I'm wondering if someone else has made up some slides etc. that would be useful in training my fellow geeks (and that they are willing to share.)"

Submission + - Today is Ockham's birthday (

garyebickford writes: "Today is Ockham's birthday. Time to read about what he actually said.

Although he is commonly known for Occam's razor, the methodological principle that bears his name, William of Ockham also produced significant works on logic, physics, and theology.

He is also considered the father of epistemology. One notable aspect of his life is that he apparently did not fit into the normal schooling process, leaving before achieving his master's degree (equivalent to high school diploma) and got in trouble with the Church due to his original thought, but was widely admired for his creative and far-reaching ideas. Sounds like me! :) (and a lot of /.ers)"

Submission + - Why so few attacks on non-Microsoft servers?

garyebickford writes: Reading the story Experts-Closing-In-On-Google-Attack-Coders, I was again struck by the fact that (as far as I know), there have been few attacks on non-Microsoft servers.

I've realized for years now that it would not be difficult for a motivated group to get malware code built into any of dozens of open source projects. For security reasons I won't go into methods here, but it's true. And the fact is, that fewer and fewer *nix users or administrators ever see, much less review, much MUCH less, really understand the code. Most of us don't have time or motivation to do so — we just install binaries using yum, apt-get, ports, or whatever.

While the total number of servers is tiny compared to the number of Microsoft boxes, their potential impact is much greater, while vulnerabilities are discovered quite often. So it seems to me that there are high value targets of opportunity. So why are we not seeing such attacks? Are the bad guys (whoever they are) saving their attacks for when they need them, such as the start of an international conflict?

Submission + - Use FreeBSD ports system for local app?

garyebickford writes: "I construct fairly complex applications. I'd like to know others' approach to makeing installable packages for local installation in a FreeBSD environment. Should I build a port?

Our applications generally use a mix of software including shell scripts that call programs that are themselves in the BSD ports system, including PHP with some important non-core modules (also in ports), Apache, plus very rarely non-ported third party software that has to be compiled and installed. The systems commonly require creation of directory trees and crontab entries.

In order to make life simpler for the production IT folks, I'd like to have an automated installer. I've built installers using shell scripts. I haven't used Make for much in the past (so there is a learning curve) but I wonder if that would be appropriate here. If so, then perhaps I should go all the way and build a BSD port package. However it doesn't appear that there is a 'local ports' section that would be appropriate for this usage. I've glanced at the Porters Handbook but not read it thoroughly.

We use Mercurial for version control, and I'd like to finally end with a package that can be built automatically from the repository."

Submission + - Polarized LED - key to polarization 3D displays? (

garyebickford writes: "(This article is from March 2008. I searched Slashdot for polarized LED and did not find anything, so I'm submitting now.)

This article is about "Ultra-efficient LED, Developed By Student, Will Vastly Improve LCD Screens, Conserve Energy" but I think they missed the boat. The most cost-effective and easy-to-use 3D systems at this point use polarized glasses and polarized screens.

There are several other systems in the works, including some that don't require any glasses — see Philips WOWvx, etc. However, all those without glasses are only 3D in the horizontal axis, requiring the viewer to maintain something like an upright position — not good for watching in bed.

This student noted that the light emitting part of an LED is already polarized, but the packaging doesn't maintain that. So he worked out how to preserve the natural polarization. This leads me to think that this could be used by OLED displays to provide an excellent 3D display experience, regardless of one's orientation (as long as the glasses stay on.)

[Rensselaer Polytechnic Institute student Martin] Schubert's polarized LED advances current LED technology in its ability to better control the direction and polarization of the light being emitted. With better control over the light, less energy is wasted producing scattered light, allowing more light to reach its desired location. This makes the polarized LED perfectly suited as a backlighting unit for any kind of LCD, according to Schubert. Its focused light will produce images on the display that are more colorful, vibrant, and lifelike, with no motion artifacts.



Submission + - Coming soon - super baby with laser diapers (

garyebickford writes: "

Duke University and United States Army scientists have found that a cheap and nontoxic sunburn and diaper rash preventative can be made to produce brilliant light best suited to the human eye.

Duke adjunct physics professor Henry Everitt, chemistry professor Jie Liu and their graduate student John Foreman have discovered that adding sulfur to ultra-fine powders of commonplace zinc oxide at about 1,000 degrees centigrade allows the preparation to convert invisible ultraviolet light into a remarkably bright and natural form of white light.

I can see the comic books now... "Super Baby defends the planet against the aliens! Shooting intense beams of light from his diaper, he attacks! The aliens put up their defensive shields in vain! Hot beams of sulfur-zinc-light fry them in their flying saucers!"

The researchers said they are producing white light centered in the green part of the spectrum by forming the sulfur-doped preparation into a material called a phosphor. The phosphor converts the excited frequencies from an ultraviolet light emitting diode (LED) into glowing white light.

Zinc oxide would be both a less-toxic and cheaper light source than the combinations used in today's commercial LEDs — gallium nitride and cerium-doped yttrium oxide, they said. Cerium-doped yttrium oxide is also used in today's mercury-containing fluorescent bulbs, Everitt added.

Liu's lab originally stumbled on to the light emitting potential of sulfur-doped zinc oxide while studying its electronic conductivity. "We just lit it up with an ultraviolet laser and — whammo — there was a lot of white light coming out," Everitt said.



Submission + - Linux antivirus? 3

garyebickford writes: "Does an actually useful antivirus software package for Linux exist — either FOSS or commercial?

Today's article cited in Slashdot's Apple section discusses Apple's recommendation for its users to install antivirus software. I think that Linux users who think viruses won't attack their machines are increasingly whistling in the dark. Depending on its lack of market penetration will eventually be a failing strategy, as Linux becomes more popular in servers, appliances and especially desktops and laptops.

Considering the widely distributed development process and vast number of applications developed by (largely altruistic) independent teams all over the world, preventing viruses permanently is an intractable problem. I have personally come up with at least a few motives and methods for evil baddies to incorporate evil software into essential Linux applications in such a way that the exploit might not become known until triggered some time in the future. If you think about it, it is not a substantially different problem than a 'mole' infiltrating a high tech company or government body.

I confess that I sometimes do not exercise sufficient care when installing software. I suspect I am not alone, and even if I do take care, it would be highly difficult for me or anyone, no matter how sophisticated, to catch all possible exploits by reading the code. What if a user is offered a downloaded software package? What if it's my hypothetical grandmother who I have converted to Linux? They might accept the installation, and even provide the root password. No, they shouldn't — but some absolutely will. Or what if the software exploits a hidden flaw in some other software to achieve root access?

Once an exploit is executed and discovered, the community will no doubt be very quick in response, but that is closing the barn door after the horse has been stolen."

Slashdot Top Deals

When Dexter's on the Internet, can Hell be far behind?"