Root Access - 2013-09-07 (page 3 of 5)

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3:01 PM

@Francesco actually, that depends a lot on how many people find your question relevant, how interesting it is, how well it's asked, how easy it is to answer, who sees it (time of day, day of week, etc.), etc.

all that can change within a single site

though the smaller sites tend to be more consistent, yes

@bob yes, what I was surprised by was that people answered it readily, with relevant and useful answers, but aren't voting on the question. Maybe it's due to the size of the community. But it's not a problem at all, I asked and found an answer, I upvoted those answer which I found useful, so everything's ok :-)

@Francesco sometimes people forget they can upvote questions :P

@JourneymanGeek the speaker did want to be tied to the 5V line, it still pops when the first power comes on.

@JourneymanGeek How's the discourse going?

user image

3:08 PM

someone remind me to set up my blog next week :P

:D

hopefully my laptop'll be repaired by then

I just realised, how to get more flags 101: check the flag queue (10kers)

Journeyman Geek

@Bob: mostly working, other than my mail being sent out from my server rather than mandril, as I had configured it, and using the hostname, rather than the FQDN

I can fix the latter quite easily

@Bob Wordpress ?

Journeyman Geek

discourse itself runs perfectly

3:11 PM

@Braiam Welcome to Root Access chat for Super Users! Please don't ask if you can ask or if anyone's around; just ask your question, and if anyone's free and interested they'll help.

Journeyman Geek

discourse.lupinenet.co.uk

5

not sure what I want to do with it yet ;p

Nice, like IRC @JohnCavil ;)

@JourneymanGeek it's slooow

Journeyman Geek

the facebook and twitter openid wouldn't work yet

of course

@Gowtham: yeah, it is

and it takes up a shitload of ram

It needs too many things to run :/

3:12 PM

hi friends

Journeyman Geek

speeds up after the first time it loads tho

@Braiam github.com/allquixotic/so-chatbot-driver

Journeyman Geek

@Gowtham: heh, most of the 2 hours of installation time was getting things downloaded and installed automatically

@Gowtham ya

afk

3:14 PM

@somequixotic need to change the help link :P

or maybe not

@somequixotic hi!

themeforest.net/item/…

Journeyman Geek

@Gowtham: not that many good alternatives if you are looking for a single person blog thing

awesome theme

@JourneymanGeek The activation link I got throws up a 404

Is the /users location configured properly ?

Journeyman Geek

@Gowtham: hm, what's the activation link?

lupinenet.co.uk/users/activate-account/xxxxxxxxxxxxxxxxxx

Journeyman Geek

3:16 PM

I activated you manually for now ;p

I'll work this out in the morning

I don't think discourse works with sub domains

Journeyman Geek

... it should ;p

there's probably a setting I messed up somewhere

@JourneymanGeek Joomla and Drupal could serve.

Not as well-known and not as blogging-oriented, but they do work.

Actually, Drupal defaults to a blog OOTB

Journeyman Geek

@Bob: joomla is a barely maintainable POC ;p

@JourneymanGeek never used it :P

@Gowtham Why not?

You do realise every domain but a TLD is a subdomain?

Journeyman Geek

3:19 PM

@Gowtham: Its more likely I made a mistake somewhere

The activation link doesn't point to the subdomain

@JourneymanGeek nginx is annoying to configure

@Bob yesss

@Gowtham it actually seems fairly easy

Discourse could be coded to point to the root domain(idk what it's called) or some bad nginx config

Journeyman Geek

@Gowtham: might be a discourse error

probably not ngnix

@Bob seems

3:21 PM

@Gowtham If you set up hosts properly, Discourse would not be care about any level below the current.

@Gowtham the root domain is called .

@somequixotic Eh, TLD's are subdomains too?

I wasn't too sure about that.

In any case, no webapp can have problems running on subdomains and still work.

Journeyman Geek

The problem is with only the activation emails

I'll see if I can fix it in the morning ;p

Just as sub.example.com. is a subdomain of example.com., example.com. is a subcomain of com.

though I do wonder how this happened

are the activation emails for people who don't auth with Google/Yahoo?

Journeyman Geek

3:23 PM

@Bob: my guess would be, I got it wrong in the settings file

@JourneymanGeek did you perhaps enter a wrong name somewhere? maybe put the outgoing email domain in the wrong place? :P

Journeyman Geek

I'm really too tired to check

@Bob: will check in the morning

as I said, some things are broken ;p

I probably got this wrong meta.discourse.org/t/activation-email-url/6409

like the FAQ :P

Journeyman Geek

lol

is there a featureful terminal emulator for windows that supports the same kinda stuff as a Linux/X11 terminal (like gnome-terminal or KDE terminal) and supports SSH?

Journeyman Geek

3:25 PM

the email thing is a different problem ;p

...besides, you know, compiling KDE or Gnome on Cygwin >_>

Journeyman Geek

@somequixotic: mobarxvt

it points to lupinenet.co.uk/faq instad of discourse.lupinenet.co.uk/faq :P

Journeyman Geek

they changed the name mobaxterm.mobatek.net

running something on VMWare Unity? :P

Journeyman Geek

3:26 PM

@tapped-out: yeah, I think I know where the issue is

I'll fix it tommorrow

yea, it's a hack

... mobaxterm.mobatek.net/download.html

Features:

> Installation/Uninstallation support

4

That's a WONDERFUL feature! Wow!

@Bob also, "games removal support" -- as in, it comes with mandatory games (and screensavers) that you can't remove without the professional version?

> Access to plugins development

Waitwaitwait... they want people to pay to be able to develop plugins for it?

Ok.

@somequixotic Ya, that's also rather weird.

ubuntu in vmware it is!

Journeyman Geek

@Bob: it works rather well

its basically a single-exe package of cygwin

3:30 PM

Holy fuck. It's serious.

mobaxterm.mobatek.net/support/documentation.html#4_7_3

> How to disable the penguins screensaver? How to remove the "Games" menu and games entries from MobaXterm?

> The penguins screensaver and the games have been added to bring fun to MobaXterm terminal. Users who use MobaXterm inside a company might want to disable these tools in order to have a more convenient tool for working. That is why the Professional edition of MobaXterm allows you to disable the screensaver and to remove the games and corresponding menu entries from the program.

man, I wonder... they really sell?

@somequixotic The answer to that is, apparently, YES!

> I love the penguins screensaver! Can I subscribe to MobaXterm Professional Edition and keep it?

> We are glad you enjoy this screensaver: we spent a lot of time developing it! Of course, in the Professional Edition of MobaXterm, you can keep the penguins screensaver (and the games) if you want.

Journeyman Geek

ooh

it has a mosh plugin

> we spent a lot of time developing it

@Bob lol

3:32 PM

uhhh... sure, that's great...

i think i'll pass on mobaxterm :P just dist-upgrading my ubuntu

or as jokerdino hates when people say, ubunutu

ubunuto

utnubu?

ubontu

unbuntu

is UBUNTO!

Ununbunututu

3:36 PM

Ununtu?

ununbuntium -- some trans-uranic theoretical element :D

I tell you what, the next huge advancement in chemistry might be the discovery of a production method for a stable isotope of a synthetic element... or so low radioactivity that it's safe for humans and has a half-life of millions of years or more

Selecting a theme for wordpress is hard ...

element 120 maybe, or 121, don't know... but if they can produce it in significant quantities, and if it has useful properties... that would be awesome

@somequixotic and it'll be useful... why?

I just realised that we already have EZO (element zero)

... in neutron stars

3:38 PM

@Bob well, we don't know what properties it'll have yet, but if it's a metal, it could be incredibly strong and dense; if it's a gas, it could be highly unreactive and thus a good substitute for sulfur hexafluoride or whatever they use now; etc

@Gowtham It's easy! Just use a random number generator!

I particularly like this one:

RFC 1149.5 specifies 4 as the standard IEEE-vetted random number.

Must be from a game console

@somequixotic A gas at 120/121? Nawp.

it'd be a huge disappointment if we went through the trouble of synthesizing a significant enough amount of the stuff that we could observe its physical properties, perhaps at the microscopic level but perhaps as much of the stuff as the width of a human hair (seems plausible at least), and then it turns out to have middling characteristics

like, "oh, it's stronger than lead but weaker than steel" or some damn thing -_-

Well, some of the new stuff might be interesting.

Inner shell valence electrons for one

3:42 PM

I wonder if particles that existed right around the time of the Big Bang were actually super high atomic number atoms, with thousands or millions of protons and neutrons in the nucleus

fissioning one of those would produce an unimaginable amount of energy

no

Journeyman Geek

probably the latter.

The force which binds quarks deminishes with heat

So high heat -> quark plasma

And no baryons (like neutrons or protons). And thus no composite particles made of neutrons, protons and leptons

so the heat and/or pressure was too high in that initial condition for protons and neutrons to exist?

Our current guesses seem to point to very high heat in the first nanoseconds.

3:45 PM

does the threshold of heat for quark plasma create an upper bound on how many protons and neutrons you can cram into a single atom? undoubtedly it takes more and more energy the more protons and neutrons you try to fuse together, but is there a limit?

And CERN (in the last decade?) has discovered that binding of quarks (using gluons?) gets less with temperature increse

ah

There is not really a limit that I know, but:

1) Too many protons -> protons degenerate

2) Too many neutron -> neutron changes into a proton (plus electron + neutrino, possibli plus energy)

Also, pure unboud neutrons are not stable. They last about 15 minutes

So there is some form of interaction going on which is not yet fully discovered

Should you have the right atom though (with magic numbers of neutrons and protons) then you might get a very heavy stable element

I know that most trans-uranic elements are increasingly unstable the higher the atomic mass regardless of isotope, but if there is ever found to be any truth to the "island of stability" in the 120 range, might there be further islands of stability later on, too, or is that really the last one?

But you need a lot of energy to create one. And nature seems to favour low energy states

No idea. I am an IT person . Not a physicist.

I just like to read up on stuff.

3:48 PM

me too

I guess you could ask at the H-bar

was just kinda thinking aloud about what kind of physics/chemistry discoveries might help us bring materials science to the next level, for things like better batteries, stable nuclear fusion power plants, stronger metals for structures and starships, etc

our immediate concern seems to be that we need more energy to do anything meaningful with fully synthetic element fabrication

Everything seem to run around energy. If we could just get good solar panels, thorium reactor (ditch all the dirty coal. Stop burning oil) and possible cold fusion (though that might like to use precious HE3)

perhaps a massive fusion based power grid could give us enough energy to experiment with fabrication on a macroscopic scale for higher atomic masses

We would need clean fusion power though

Without neutron surplus

3:53 PM

the neutron surplus irradiates the reactor itself, severely limiting the lifespan of the reactor vessel, doesn't it?

Yes.

It passes though a lot of matter. So shielding is an issue

Lead etc do not help.

they're not just plain old neutrons, they're fast neutrons

You needs lots of material. (with atom cores). Not heavy ones

So water, of parafine.... but lots of it.

And that stuff will capture a neutron now and then and become unstable

So no fission leftover product...but a radioactive reactor after a while

then we'd have to bury the reactors... lots of them :P

Fusion with the very rare He-3 however has no surplus neutrons

Or put them in space

3:55 PM

@ManishEarth Oh no, master is here! Hide the cookies!

E.g. on the moon where we can mine He-3

@JohnCavil O_0

You're a bot

Is that because I'm a mod?

@ManishEarth very observant

yes, it considers you a "room owner" because all mods are room owners everywhere

Ah, I see

@somequixotic Google "islands of stablity"

oh, you're a mod on physics and chem

did someone call you in here? or did you just hear us talking about transuranic elements through the ether?

3:59 PM

There are yet-to-be-synthesized transuranic elements that are relatively stable. When I say relatively I mean that they still have a tiny half life, just not that tiny

@somequixotic The ETHER!!!! :p

in The h Bar, 4 mins ago, by Gowtham

We were having a discussion on weird physics and this room got mentioned :)

Set fire to the ether

oh lol

@Hennes Google "Positronium" or "onium". There are many "element zero"s

Nah. I just sit in a spaceship. LAnd on a neutron star. Get some material (e.g. to coat knoves with). Take off and sell them for a very high price. (To cover fual costs)

@somequixotic damn, I need to clear my name off the visited list :P

4:02 PM

Never mind that neutron matter without high pressure would decay.

It made a good story in a SF book though

@ManishEarth dat luminiferous aether

@somequixotic The size of "particles" (not necessarily fundamental) increased over time. First (not exactly "first", but we're stepping into unknowns here) we had a quark-gluon plasma, then nucleons, then simple atoms like hydrogen, and then muuch later we had larger things

we're having a lot of physics discussions in here today

@somequixotic Oh, you already know what an island of stability is. That's a good question, really, I suggest you ask it on Physics

wow, element "Sg" isotope 268 is "predicted" to have an alpha decay half-life of 3.2 hours... 3.2 hours? first, that's going to be horrendously radioactive and thus not even remotely safe for use outside of a laboratory, and second, if that's all we have to look forward to on the island of stability, it's hard to justify investing money and time into that :/

4:05 PM

@somequixotic The current focus of materials science is making molecules with interesting shapes. Basically nanoscience.

Predicted

unless it's just for science's own sake, in case our calculations are wrong or something, but really... sigh... I was hoping for some kind of super-strong Otterbox Unbilinium case for my smartphone ;-)

@somequixotic seaborgium?

Can only be made in small amounts, and in those amounts it's harmless

harmless in those amounts yes, but if it were a strong metal, we'd want to create lots of it, if it has characteristics that are useful that we can't easily replicate with, you know, iron based stuff

9

A: Why search new elements?

There are multiple reasons: To improve our experimental prowess: There's no single catch-all process to create higher elements. While the basic process is to smash stuff together, once can't get much more specific than that. For each new element, the techniques used differ. And, as with any exp...

4:06 PM

or carbon based stuff

(nanoscience)

nanoscience ain't "easy"

@ManishEarth for a second, you made me check the chat room.

'Because we can' #heh!

@jokerdino Ha!

@jokerdino unbunuto

you're welcome. FEEL THE BURN

4:09 PM

@somequixotic NOO!

@jokerdino ubunutu!

ahhh, it's an invasion by moderators

@ManishEarth can we burn them please?

hide yo @Bob s, hide yo @Hennes , and hide yo doggies cuz they're bannin everybody out there

o.O

4:12 PM

My doggy is made from neutronium. It does not burn.

I'm not there, ignore me :P

O.O

No idea what is in those movies. Trying to open them times out

Evil mood:
http://superuser.com/questions/642287/stop-uploading-to-internet-in-ubuntu -> duplicate of. On ubuntu -> duplicate of SU question.

Lets go circular

bad isp

4:18 PM

Yup.

@Hennes lol :P

i hate cross posters

i second it.

That Brazilian Guy

@JourneymanGeek Oh god, I have been trying to remember this tool's name for ages!

Thinking about is as an alternative for workplace communitcation.

Ah, good. OP deleted on of them.

oooooooh

lowendbox.com/blog/…

4:26 PM

Hmm,. have have the tags [Xeon] and [intel-Xeon]

20x Intel xeon

18x xeon

@Bob ...how many VPSes does one fox need? :P

That Brazilian Guy

@JourneymanGeek Tell me about it. Joomla is my workplace's almost-official-because-everyone-uses-it tool for making websites. There are many sites still using buggy, easily hackable v1.5 released in 2008. When I started there we'd get almost daily defacement alerts.

@tapped-out Foxes need local VPSes.

too bad the port speed sucks and the bandwidth is pretty crap

and it's quite expensive too...

@Bob looks crappy overall :|

@somequixotic ya

doesn't get much better here, though

meanwhile you get stuff like this in the US...

lowendbox.com/blog/urpad-24year-1024mb-openvz-in-houston-texas

4:31 PM

@Bob is that 1000 GB bandwidth per year, or month?

Jumping back to physics: superuser.com/questions/606466/…

Ah good. AskU got cleaned. I no longer need to keep that tab open

4:46 PM

@somequixotic probably month

@Hennes 10µs latency??

1. get a RTOS

2. don't go near consumer hardware

Aye. But I would love to work with those kind of challenges now and them.

Also, SCIENCE!

huh. some interesting attempts at measuring the time taken for a context switch

blog.tsunanet.net/2010/11/…

@Bob do you know if that URPad is oversold significantly? :p

@somequixotic might be :P

$12/yr for 512MB of RAM with 1024MB burst?

Crazy.

@somequixotic commenters on that post don't seem too happy

though, apparently ownership changed too

huh. semoweb is owned by them too? o.O

that makes two vpses I have under them

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Sep '137

Root Access

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