Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!



Boeing Unveils Cabin Design For Commercial Spaceliner

Karellen Re:Boeing is going to put people in space? (74 comments)

Although... the VolksRocket project wasn't started until after Evel Knievel's Snake River Canyon jump in Sep '74, making it at least a decade after the GP's "50 years ago" cut-off. If you've got anything else from '64 or earlier, I'd love to see that too.

about 4 months ago

Boeing Unveils Cabin Design For Commercial Spaceliner

Karellen Re:Boeing is going to put people in space? (74 comments)

Cool! Thanks.

The Volksrocket project does look really fascinating, but there's not much about it. The Wikipedia entry calls it a "planned project", as cited in the linked "Great Mambo Chicken and the Transhuman Condition"(!) article, and says (uncited) that it was tested through 1991, and reached 34km altitude at burnout (citation Omni article, which is not online, bah!) with no hint that it was capable of in-flight relight or that controlled descent was tested.

Googling for more info is a bit all over the place. The VolksRocket Project claims 3 successful flights, but has no information on the flights, and says it was powered by 1 AJ-10, contradicting the Wikipedia article which says it used 4 LR101s.

Are you aware of a better/more direct link to how far they got with the controlled-descent stage of testing?

about 4 months ago

Boeing Unveils Cabin Design For Commercial Spaceliner

Karellen Re:Boeing is going to put people in space? (74 comments)

Really? Wow. Could you please provide a link or reference citation to the extraordinarily detailed documents describing the data obtained from the 50+ year-old R&D in flying rocket booster stages back to sea-level for a controlled powered landing, so they can be refuelled and reused with minimal-to-none teardown/rebuilding? Or the 50+ year-old R&D into combining a capsule launch escape system with a means of powered descent and soft-landing on land, removing the need for parachutes (except as emergency backup) or ocean recovery, which could also be used to land on Luna or Mars?

about 4 months ago

Closing Surgical Incisions With a Paintbrush and Nanoparticles

Karellen "The Power of Nanoparticles"? (56 comments)

Really? As if all nano-scale particles have some kind of magical properties? (On top of those relating to branding and getting hits on your press-release?)

From TFA:

Silica nanoparticles (SiO2NP) with radius of about 50 nm (Supporting Information, Figure S3) were synthesized by the Stöber method and applied as a solution in deionized water at concentration of 30 wt% (pH 8.5) or, when indicated, as a powder. Iron oxide Fe2O3 nanoparticles (Fe2O3NP) were purchased from Alfa Aeser, stabilized by citric acid, peptized, and used in aqueous solution in milli-Q water at 42 gL-1

That's not nanotech, that's fucking chemistry.

I doubt that should even count as your basic type-IV nanomaterials or type-V biopolymer nanotech. There's nothing "nano" to see here except for the 18th-century tech known as "molecules", and it's certainly not worthy of 61 separate uses of "nano-" words in the paper.

No wonder any discussion around "real" nanotechnology (i.e. atomically precise manufacturing - the technology the word was invented to describe) is so damn confusing.

about 5 months ago

Should Microsoft Be Required To Extend Support For Windows XP?

Karellen Re:Define Support (650 comments)

(closed source binary only commercial application)

Well, there's your problem.

about 5 months ago

Ford Dumping Windows For QNX In New Vehicles

Karellen Re:Obligatory (314 comments)

The oil, water temperature, and alternator warning lights would all be replaced by a single "This Car Has Performed An Illegal Operation" warning light.

If only! Then Microsoft would finally start catching up with Unix, which got there first (as always):

Ken Thompson has an automobile which he helped design. Unlike most automobiles, it has neither speedometer, nor gas gauge, nor any of the other numerous idiot lights which plague the modern driver. Rather, if the driver makes a mistake, a giant “?” lights up in the center of the dashboard. “The experienced driver,” says Thompson, “will usually know what’s wrong.”

-- The Unix Haters Handbook, Chapter 2 (p.17)

about 7 months ago

20% of Neanderthal Genome Survives In Humans

Karellen Re:Why so low a commonality? (202 comments)

Yup, given that I've read elsewhere that we share about 90% of our genome with fricking cows - all that data for building animal cells, and vertebras, and hearts, and livers, and kidneys, and mammary glands, and hair, and eyes, and nerves, and skin, etc..., having only 20% of the Neanderthal genome in common with us is setting off my bullshit alarm big time.

about 8 months ago

UK Government May Switch from MS Office to Open Source

Karellen Re:Wrong answer. Switch file formats first, then a (273 comments)

Actually, now I've read the article, that's what the Minister is saying. Move to open formats first.

That will make it possible to switch software later, if they choose to. But even if the government doesn't, it will allow the people they work with to use their own choice of software, and prevents lock-in. Using MS Office becomes a choice, and can be selected (or dropped) on its merits, rather than being suffered out of necessity.

It's the BBC article and the /. summary which try to make it look like this is purely about switching software.

about 8 months ago

UK Government May Switch from MS Office to Open Source

Karellen Wrong answer. Switch file formats first, then apps (273 comments)

I want to see a greater range of software used, so civil servants have access to the information they need and can get their work done without having to buy a particular brand of software.

In that case, you want to first switch your mandated file format from MS's doc(x)/xls(x) to ODF's odt/ods. Then you can use MS Office, or switch to a new (possibly open-source, possibly even Free Software) office suite as you prefer.

about 8 months ago

Ask Slashdot: Configuring Development Environment On a Shared Workstation?

Karellen Re:Lots of services? Why? (158 comments)

By having separate services, they're kept in their own process memory space, so no memory-surfing hackery can jump into another database instance.

So SQL Server is so badly written that an application - already in a separate process - causing the DB to perform unexpected memory accesses and read/write random memory is an expected exploitable attack? Fuuuuuuuu.....

You might install a 2000, 2005, 2008, 2008 R2, and 2012 instance all on the same machine.

Hmmmmm....., I can see how this might be useful on a beefy test server that does automatic builds and regression tests of your entire source tree across your entire range of supported dependencies. I think it's a pretty rare use-case, and probably not that likely to apply to the original poster, but OK.

each instance generates three separate folders

The datadir is a (possibly junctioned/redirected) subdirectory of the binary installation directory? That's... interesting. And the pathname includes the SQL server version? Doesn't that make upgrading even more of a pain?

about 8 months ago

Ask Slashdot: Configuring Development Environment On a Shared Workstation?

Karellen Re:Lots of services? Why? (158 comments)

SQL Server alone is 10 services.


Bloody "enterprise" software! So, install a DB server with a reasonable footprint instead. Like PostgreSQL, or even MySQL. They are available for Windows, you know. Also, if IIS is anything like that, then ditto Apache. If no-one's making any connections to it, Apache will happily sit there in the background using almost no resources.

5 of them are per-instance, which means that installing multiple instances of SQL Server will add more installations of this same service to your system.

Why would you install multiple instances of SQL server? What's the point? And where would you install them to? "c:\program files\SQL Server 1", "c:\program files\SQL Server 2", etc...? Or...?

about 8 months ago

Ask Slashdot: Configuring Development Environment On a Shared Workstation?

Karellen Lots of services? Why? (158 comments)

I'll be needing to install all of your basic Microsoft developer suites, IIS, SQl Server, ANdroid SDK, Java SDK, device emulators, etc. etc. Plus AMP and finally GIS software. There will obviously be a lot of services running, long build times, and so on.


Why will there be "a lot" of services running? Yes, you'll have IIS and SQL server, but that's only two services - and if you've only got a small test database and a couple of dev websites, they'll hardly take any resources at all if you're not actually using them. So, if you're not sat in front of the computer actually doing development, and someone else is logged in instead, it shouldn't really affect them at all. Ditto "long build times" - what sort of things are you planning on writing that are going to take so long to build that you'll have to walk away from the computer for long enough that someone else will want to use it concurrently?

Visual Studio, the SDKs, and the emulators will put extra entries in other people's start menus, but so what? If they don't run them themselves, they won't do anything or get in the way. Presumably not all these other users run your music production and photo editing software either, and that's not hurting them, is it?

To wit, I wouldn't be able to use my desktop for my other purposes like the music editing.

Why on earth not?

about 8 months ago

Mediterranean Sea To Possibly Become Site of Chemical Weapons Dump

Karellen Re:Send them to mars (174 comments)

That's only the case if you want to go into a controlled orbit very close to the sun. But we don't want to do that.

To crash something into the sun, we'd be happy with any orbit which is elliptical enough such that the perihelion is inside the sun's radius. We don't care what velocity we have at that point, even if it's theoretically high enough to send us back out to the orbit of Earth (or even Neptune) on the other side of the orbit, because the act of hitting the surface of the sun will remove any problems there.

So, we don't actually need to change our speed very much. We "just" need to change direction. Or any combination of direction and speed which gets us within 1 solar radius somehow. As another commenter has noted, we can use slingshots off other bodies in the solar system to change our delta-v in a large number of ways. We should be find a suitable slingshot *somewhere* to get us on a suitable orbit for impacting the sun without needing too much extra propellant.

about 9 months ago

Microsoft: the 'Scroogled' Show Must Go On

Karellen Hang on... (286 comments)

See also Scroogled by Cory Doctorow (translations)

Wow, Microsoft appropriating the name of someone else's pre-existing work in a particular domain, particularly when that domain is the criticism and commentary on a near-monopolist, and the original author is one of the most vocal and prominent proponents of copyright and other IP-related reform. I think my irony meter just exploded.

about a year and a half ago

UW Imposes 20-Tweet Limit On Live Events

Karellen Re:Then sit in the crowd (196 comments)

Are you seriously implying that "real journalists" (i.e. those employed by a corporate news organisation) would never spread misinformation while claiming to be reporting facts?

about 2 years ago

Black Sheep Blackberry Blackballed By Business

Karellen Re:So fucking what? (349 comments)

Maybe once the market share gets low enough, these asshats can just don some thick-rimmed glasses and claim to be hipsters using thier BBs ironically.


about 2 years ago

You Can't Print a Gun If You Have No 3D Printer

Karellen Re:the message is clear: MAKE IT !!! (632 comments)

Still not fixed. If the US has X guns/capita, and France has (X - 2.5X) guns/capita, then France has -1.5X guns/captia (i.e. negative guns/capita) which is clearly absurd.

If the US has 2.5 times more guns per capita than France, that does not mean that France has 2.5 times fewer than the US, it means that France has 72% fewer, or 0.7 times fewer.

(On the other hand, if the US has 2.5 times as many guns per capita than France, then France has 60% fewer, or 0.6 times fewer.)

If Y is 100% more than X, it does not mean that X is 100% less than Y, it is 50% less than Y. In the first instance, you're measuring % of X, and in the other you're measuring % of Y. As X and Y are different, N% of X and Y are different, even for the same N.

about 2 years ago

Shuttleworth: Trust Us, We're Trying to Make Shopping Better

Karellen Re:Trust us, we have root (255 comments)

How are they going to install a security update to your kernel, or to the security update system, if they don't have the ability to run arbitrary code as root?

about 2 years ago

Debian Changes Default Desktop From GNOME To XFCE

Karellen Re:The what? (328 comments)

Well, we had it tough.

cfdisk /dev/hda && mkfs.xfs /dev/hda1 && mount /dev/hda1 /mnt/gentoo/ && chroot /mnt/gentoo/ && env-update && . /etc/profile && emerge sync && cd /usr/portage && scripts/ && emerge system && emerge vim && vi /etc/fstab && emerge gentoo-dev-sources && cd /usr/src/linux && make menuconfig && make install modules_install && emerge gnome mozilla-firefox openoffice && emerge grub && cp /boot/grub/grub.conf.sample /boot/grub/grub.conf && vi /boot/grub/grub.conf && grub && init 6


more than 2 years ago


Karellen hasn't submitted any stories.


Karellen has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>