The Pod Bay

Undo

00:43

@Tildal You got called out in an edit suggestion :) space.stackexchange.com/review/suggested-edits/1163

Hash

02:33

can anyone tell me name of best java book please ?

Realz Slaw

@Hash

amazon.com/Coffee-Love-Ways-Drink-Your/dp/0470289376

I had to :P

Hash

@Realz thanks a lot...:-):-):-):-):-)

Stack Exchange

05:04

Merge branch 'asdfasjkfdlas/alkdjf' into sdkjfls-final

TildalWave

08:30

@Undo OMG the end of the world!

Anyway, good morning! :D

Everyone

14:25

Just how hard is S1 accelerating? Anybody?

trots off to feed the puppies

TildalWave

@Everyone S1?

Lotus Elise?

Audi?

Donald.McLean

14:55

@Hash amazon.com/Beginning-Scala-Experts-Voice-Source/dp/1430219890

Undo

15:38

I awaken.

Realz Slaw

@Undo not a problem, just press ctrl-z :P

Undo

You'd think that people would get tired of the ctrl-z thing eventually...

Realz Slaw

maybe we need someone nicked Redo and a $\underline{\rm Y}$

Everyone

15:59

@TildalWave Nevski, I mean (+:

trots off to sup

Everyone

16:49

Anybody awake?

Undo

I is!

David Freitag

@Everyone Correction, Everyone is awake.

Everyone

'o @Undo @DavidFreitag

Undo

'o

David Freitag

'q

Everyone

16:51

Got a hypothetical question I'd like to run past here first

Stack Exchange

NASA Image of the Day: Comet ISON Streams Toward the Sun

posted on November 27, 2013

In the early hours of Nov. 27, 2013, Comet ISON entered the field of view of the European Space Agency/NASA Solar and Heliospheric Observatory. In this picture, called a coronagraph, the bright light of the sun itself is blocked so the structures around it are visible. The comet is seen in the lower right; a giant cloud of solar material, called a coronal mass ejection or CME, is seen billowing…

Everyone

Assuming we're able to get up to relativistic distances ... where would the craft aim it's antenna? Would the antenna be aimed in a straight-line?

Realz Slaw

behind it ?

lol

Everyone

Dunno. That's why I asked (+:

TildalWave

@Everyone ISON?

Everyone

16:58

@TildalWave Yep

TildalWave

@Everyone dunno looks rather weak

Everyone

@TildalWave It's gone up from < 100K kmph yesterday to over double that figure today

and expected to increase more than 3 times that in the next 24

TildalWave

@Everyone Ah you mean what's its expected speed during perihelion? There should be plenty of quotes for that figure online

I don't think it's accelerating tho, at least not by its own will :P

Everyone

Nope. I'm looking for acceleration aka increase in velocity due to Sol's gravity

TildalWave

Google for "NASA ISON stereo" there's trajectory calculator there for it

Everyone

17:03

cometison2013 says 845000mph .... and some other websites have put a figure as high as 1.6M Kph

that would be like 1M mph

TildalWave

stereo-ssc.nascom.nasa.gov/comet_ison

Realz Slaw

gah too much noise :(

Everyone

eyes @RealzSlaw auspiciously

TildalWave

this one actually ... it's in Java tho secchi.nrl.navy.mil/STEREOorbit/C2012_S1_ISON.html

Everyone

What're you doing with your nose?

Realz Slaw

17:05

lol

fixed :D

Everyone

j/k (+: no offence

Realz Slaw

now I am totally offended

TildalWave

@RealzSlaw speak more quietly then :P

Everyone

type more quietly, you mean

TildalWave

well that

Realz Slaw

17:07

you guys are too talkative :P

TildalWave

I have no idea what we're talking about actually

Everyone

it's quieter when one types with one's nose. Fingering the keyboard is actually a very noisy affair.

TildalWave

so what's new?

Everyone

Just wondering about these carbon credit thingies ((+:

How many carbon credits can nations earn by sending Solar Powered spacecraft into space? ((+:

Btw, how long does that applet take to load?

Realz Slaw

racket

Everyone

17:11

@RealzSlaw What've you gotten yourself into this time?

TildalWave

@Everyone Sell those carbon credits now they'll be worthless once I answer one question here, I'll explain why we're saving the planet with our carbon emissions and we should perhaps even increase them ;)

Realz Slaw

lol

@Everyone I meant carbon credits are a racket

Everyone

@RealzSlaw Actually, they are a racket

Realz Slaw

looks back

thats what I just said!

lol

Everyone

Not far unlike those multi-level-marketing schemes that used to go

Of course, just because we're both in agreement doesn't mean we may not be wrong

Realz Slaw

17:16

right, you could be wrong and I could be right :P

Everyone

zigzactly

TildalWave

You know when I studied literature to answer one @PearsonArtPhoto's question about how well Martian atmosphere stops radiation, I realized we need not worry about the geomagnetic reversal at all, the results have incredible consequences... turns out the atmosphere is pretty good at lowering GCR and SPE on its own... and the more we pollute, the more we heat it up... and more water vapour in the atmosphere stops it even better.

Everyone

et tu Brute?

TildalWave

and during magnetic low, we'd lose some of the upper layers of the atmosphere, blowing the excess carbon emissions away from us ... so we in a sense need more of it

especially, since we now started appreciating that the geomagnetic reversal is a slow process

Everyone

Slow process? Isn't the jury still out on that one?

TildalWave

17:20

@Everyone I just think we humans take too much credit for how fast the world is turning to hell

@Everyone not really, there's records of past magnetic reversals in layered sedimentary rock all around the world and they all point to slow reversal

Everyone

@Tilda There used to be this program on BBC back around 2005/2006 I think "The great global warming swindle"

TildalWave

@Everyone IIRC that's about the pole glaciers melting, stopping the Atlantic stream and bringing about new ice age, no?

Everyone

Not quite that, but close

Wouldn't a polarity reversal generate a current in mineral seams/veins?

Realz Slaw

ice age sounds cool

TildalWave

Well I think we take too much credit for recent history increase in greenhouse gases really ... I mean, has anyone even calculated emissions from natural causes like volcanoes and such? And they now found out that there's an active volcano under Antarctica even

So yeah... let's tax us more for the fact that Antarctica is melting faster. That will sure solve it. ::D

Everyone

17:24

Yeh. I heard of that one. It's supposed to be a huge one too

TildalWave

indeed

Everyone

Reminds me ... didn't they have a huge part of Baffin Bay calve from the main continent earlier this week?

TildalWave

and they estimate it's been active for quite awhile now, we're talking about decades here, perhaps longer

Everyone

longer than decades I read

TildalWave

I read up to 100 years by some estimates

So yeah,... us puny humans really count :D

Everyone

17:28

sigh Alright. I admit it. I set that volcano off - but it was an accident.

TildalWave

@Everyone I read about a big chunk of ice separating off Antarctica recently... I'll find it, give me 2 sec

Everyone

That's the one

TildalWave

> Pine Island Glacier, Antarctica
An iceberg estimated to be 35 by 20 kilometers (22 by 12 miles) separated from Antarctica's Pine Island Glacier between November 9 and 11, 2013. Such events happen about every five or six years but this iceberg, designated "B-31," is about 50 percent larger than its predecessors in this area. A team of scientists from Sheffield and Southampton universities will track the 700 square-kilometer chunk of ice and try to predict its path using satellite data.

Everyone

Heh. 35/20km would be one iceberg nobody could miss

TildalWave

did the last one that coasted towards Australia even melt yet?

Everyone

17:32

That one got carried into the Atlantic, iirc

TildalWave

I heard they had some plans to exploit it for tourism, build a temporary ski resort on it or something like that LOL

Donald.McLean

Pull that puppy ashore and create a nice fresh water lake.

TildalWave

that's an idea

Realz Slaw

lol

Everyone

glares @Donald What?! No. Test the Europa landers on it

Donald.McLean

17:33

Where is anti-grav technology when you really need it.

Everyone

'o @C2V

Realz Slaw

whats the point of using the @ if you not gonna do the nick

gosh can't get no work done when in this channel

called2voyage

@Everyone Hi!

TildalWave

@Everyone In Europe, they'll just tax us more for it, even if it's got nothing to do with us. Rhetorics don't come cheap here

Realz Slaw

you guys need to learn how to idle more :P

called2voyage

17:34

Just dropping in and checking out the chatter.

Realz Slaw

they chattering like birds :P

Everyone

Europa. Not EuropE

Birds don't chatter.

Birds Twitter

Monkeys chatter.

TildalWave

@Everyone I know ... but I can't miss an opportunity to rant now, can I?

Everyone

ah. sorry.

@Tilda You do know the solution to taxes now, don't you?

TildalWave

you're saying we twitter like monkeys?

Everyone

17:36

me?

@RealzSlaw said it. Not I!

Realz Slaw

@Everyone rofl

TildalWave

do flying fish school or flock?

Realz Slaw

@Everyone to die?

@TildalWave flool ofc :P

Everyone

blah. Why do I always find myself surrounded by nut-cases? q+:

TildalWave

@RealzSlaw or schlock

Everyone

17:38

j/k (+:

Realz Slaw

@Everyone I asked myself the very same thing :P

Everyone

@called2voyage One from the physics forum I posted awhile ago. Wouldn't a polarity reversal generate a current in mineral seams/veins?

@RealzSlaw Luck of the draw?

Btw, do comets spin on their axis?

TildalWave

aye

ISON is a slow spinner tho

Realz Slaw

gosh are there stats on how much text runs through this chat

its like 5 msgs/minute

TildalWave

@RealzSlaw chat.stackexchange.com/rooms/info/9682/the-pod-bay

Everyone

17:41

Wonder how ISON got pelted out of Kuiper/Oort in the first place

Alright people. Time to shut-up (+; give @RealzSlaw time to focus on what the pretty teacher at school is trying to teach him

TildalWave

wheey I'm the chattiest man

Everyone

Heh

Realz Slaw

lol, I am actually programming

or trying

TildalWave

Everyone

You're very trying q+:

Realz Slaw

17:44

lol

I am being productive! really!

Everyone

Don't say that twice.

If you do, you'll likely be re-productive!

Realz Slaw

lol

TildalWave

2

Everyone

If at work though, you really ought not keep the chat window open - these things can be distracting

Realz Slaw

@TildalWave lol is that real

Everyone

17:48

@TildalWave Heh

Realz Slaw

@Everyone I am not at work, but anyway, I usually keep chat windows open without issue; most ppl don't talk this much :P

TildalWave

@RealzSlaw No idea, but it's hysterical

Realz Slaw

@TildalWave I've heard it before, as a joke

Everyone

@RealzSlaw If real, it is not only hysterical but also historical

Realz Slaw

lool

Everyone

17:50

OK. How does this sound?
_"Your migration software will not let me drink coffee" quoth A. His bitterness, stronger than chicoried coffee, carried plainly over the telephone lines. Bad enough that he should have to forgo coffee - to add insult to injury it was his favoured application that had developed such temperament. It was clear a fix was in urgent demand._

I'm writing me memoirs

TildalWave

You're writing it "noir"?

Everyone

noir?

TildalWave

you know, film noir

Everyone

I don't get it. Explain please?

TildalWave

e.g. Dick Tracy

Everyone

17:59

Huh?

TildalWave

or from newer ones The Man Who Wasn't There

Everyone

googles

TildalWave

or Dark City had a bit of the noir-ish feel to it

Have you read The Maltese Falcon?

Everyone

Nope. It's on my 'to watch' list though.

Hitchcock, wasn't it?

TildalWave

@Everyone No, the book is by Hammett and the movie ... dunno who directed it wait give me a sec

Director: John Huston

Everyone

18:02

directed by Hitchcock, iirc

hmmm

TildalWave

w/ Humphrey Bogart

Everyone

Another falcon then.

TildalWave

imdb.com/title/tt0033870

Everyone

oh right. that was north by north-west

sorry

TildalWave

well the surrealism in it is about there with film noir but I wouldn't really put it in that category

Everyone

18:04

my anecdote is surrealistic?

TildalWave

have you watched Nocturne Indien?

Everyone

Nope )+: Sowwy

TildalWave

it's ... something different

imdb.com/title/tt0098000

Everyone

French language movie then?

TildalWave

and English, and some Hindi I believe, it's been a while since I last watched it

You'll need subtitles either way, there might be some exotic languages in it too

btw, re ISON, NASA made a "toolkit" page on it: solarsystem.nasa.gov/smallworlds/cometison.cfm

I get about 844k MPH relative to Sun in NASA Eyes

max perihelion velocity

that's 377.3 km/s

or 0.126% c

Realz Slaw

18:24

wait

what is going 0.1% c

the comment?

that is fast, woah

TildalWave

yup pretty fast

Donald.McLean

@TildalWave snopes.com/military/lighthouse.asp

Realz Slaw

heh, a minitime machine

just hop a ride on the comet, and you will age slower :P

TildalWave

@Donald.McLean hehe I've seen that exact page too ... I know it's not real, still, doesn't make it any less funny :)

Realz Slaw

how does something so fast stay in orbit

Everyone

18:27

@RealzSlaw It's not that fast throughout it's orbit; this is only at perihelion

Be great if there were some way to preserve that 0.126c heading out of the well

Donald.McLean

@TildalWave Yes, it's still funny. The Snopes page, with the history of the joke is almost funnier though.

Realz Slaw

@Everyone it is still amazing it reaches that speed, and it isn't enough to break away from the sun

does that reflect on how much energy is needed to get out of the solar system?

TildalWave

@RealzSlaw You need to do 617.5 km/s on the surface of the Sun to reach escape velocity ... but since it's going roughly one diameter close to it, I guess it should still be pretty close to reaching it. So it has eccentricity of some 0.9999947 and orbital period at around 400k years

Everyone

@TildalWave Who has an eccentricity of 0.9999947?

TildalWave

@Donald.McLean that's because you're an American and you read that Canadians vs Americans version :P

Realz Slaw

18:32

rofl

TildalWave

@Everyone Comet @Everyone

Realz Slaw

@TildalWave lol I was thinking, the US Navy forswears it, but maybe thats because it happened to the Brits

Everyone

@TildalWave S1, you mean?

TildalWave

@Everyone S1 is just "First in September" but yeah I meant "Comet ISON"

Everyone

Where'd that 0.999947 come from? That isn't hyperbolic

TildalWave

18:34

C/2012 S1

C/2012 S1, also known as Comet ISON or Comet Nevski–Novichonok, is a sungrazing comet discovered on 21 September 2012 by Vitali Nevski (Виталий Невский, Vitebsk, Belarus) and Artyom Novichonok (Артём Новичонок, Kondopoga, Russia). The discovery was made using the reflector of the International Scientific Optical Network (ISON) near Kislovodsk, Russia. Data processing was carried out by automated asteroid-discovery program CoLiTec. Precovery images by the Mount Lemmon Survey from 28 December 2011 and by Pan-STARRS from 28 January 2012 were quickly located. Follow-up observations were mad...

It's fairly updated, I've seen lately some Wiki pages that were nearly newsworthy with updates within minutes

Everyone

Ah. It's > 1.0 @ 2050

Stack Exchange

astrobites: Orbital Decay of X-ray Binaries

posted on November 27, 2013 by Josh Fuchs

In today's paper, the authors study how the periods of two black hole x-ray binaries are changing. They find that the periods are decaying faster than expected based on standard theoretical arguments.

TildalWave

@Everyone that's just looking at it as a two-body problem in keplerian orbits... there's more to the Solar system tho

Everyone

The other way around ...? < 1.0 was for 2-body

(assuming I understood the Wikipedia article that is)

TildalWave

aye that's what I meant

Everyone

18:39

ah. aha

it's still accelerating at a clip though given it's going to more than double it's velocity in the next 24

Why is it blue-green?

TildalWave

green would be carbon no?

and some refraction?

I'm also not sure that's not a RGB composite

Everyone

refraction wouldn't apply to cameras outside earth atmosphere, would it?

Oooh. that might make a question for the site

TildalWave

@Everyone why not? it's mostly water vapor

Everyone

Didn't think of that ... you're prolly right

most of it should dissipate, imo

how do I determine the amount of temperature increase it's front encounters from the acceleration due to Sol's gravity?

< 0.1AU too

Donald.McLean

@TildalWave No. I have absolutely nothing against Canadians. I was talking about how the joke may have come from the 1930's originally.

The version that I first read, probably at least 20 years ago was all Americans.

I was active duty army, and we never missed out on a chance to make fun of the navy. :-)

lego.cuusoo.com/ideas/view/14460

Everyone

18:58

@Donald.McLean Not the air-force? (+:

Donald.McLean

@Everyone Just ask yourself what is the hardest fought football rivalry between the service academies.

Everyone

@Donald I wouldn't know really; not based out of CONUS

Realz Slaw

the problem with a lego hubble

Everyone

Traditionally, I'm told, Army & Navy team up

Realz Slaw

is where do you put it :P

Everyone

19:01

Why you put it ... oh.... a lego hubble. Never mind ...

Realz Slaw

lol

I wonder if someone will one day make a lego rocket that can launch a lego hubble

Everyone

They'd need lego men, and women to orient the 'scope then

Donald.McLean

@RealzSlaw It would require a lego shuttle.

TildalWave

that's so cool

Realz Slaw

@Donald.McLean, sure

I'll take it

Everyone

19:03

Are launch vehicle payload packed in foam, or such to protect them from the high acceleration at launch?

Donald.McLean

The Hubble was specifically designed to exactly fit in the Shuttle bay, making it the largest single object launched by shuttle.

Realz Slaw

just build me a space elevator, someone

Donald.McLean

That's the problem with gracefully deorbiting it - there's nothing big enough to carry it down.

Realz Slaw

those designs are really cool

TildalWave

yesterday, by TildalWave

Although really, the damage was done when the party planners took the hole punch to the elevator ribbon to hang up the sign.

Realz Slaw

19:06

lol

Everyone

heh

TildalWave

or...

If you think space elevators are good, but just too boring and practical, check out the 'space fountain'.

Everyone

Nah. I like the earlier one better; it's easier on the mind

p.s. answer the question!

Realz Slaw

@Everyone ask on the site

get fake internet points

TildalWave

points are real, but the cake is a lie

Everyone

19:10

I'd rather have the cake too

TildalWave

I'd rather eat it

Realz Slaw

I'd rather eat someone else's cake

TildalWave

good thing about cakes is they have a best before date so you have to eat them

Everyone

Sure. What about the one that someone threw at the Sun?

Donald.McLean

Mmmmmm, cake.

The "best before" date for cake is always "as soon as possible".

Everyone

19:15

Ugh. I'm sleepy

'nini

Anyone want to do the acceleration question?

TildalWave

what are we accelerating?

Everyone

payload in a launch vehicle

how is the payload restrained from bouncing around within the craft?

and from damage elsewise due to the acceleration at launch. Most of these spacecraft are doing better than Mach 1 just clearing the gantry

TildalWave

styrofoam peanuts?

if it survives being shipped as a UPS parcel, it'll survive the launch to space too

Everyone

It's not shipped as a UPS parcel, is it?

TildalWave

you could test it that way

bubblewrap?

Everyone

19:21

dunno; prolly no

Donald.McLean

@Everyone Proper tie down should be enough. There isn't any packaging on car transporters.

Everyone

@Donald.McLean Clamps then?

Donald.McLean

Sorry, no idea. I haven't been working on the project that long.

Everyone

No worries. Care to draft the question? I'm just too tired to framethe question tonight

TildalWave

the mirrors for JWST came in boxes I saw same pics of it

Everyone

19:25

Was the JWST assembled in orbit then?

right. 'm off. 'nini

Donald.McLean

@Everyone JWST hasn't even been assembled yet.

But no, it's going up on an Arianne 5. That's one of the key contributions of ESA.

TildalWave

this was in boxes then

Realz Slaw

gimme one

looks like little chocolates

TildalWave

not so little

Realz Slaw

well

scale is hard to tell :P

TildalWave

19:30

there's 3 people shifting one at the bottom

Realz Slaw

oh!

camo :P

oompa loompas anyway, they are

shrunken oompa loompas

Undo

20:02

Cm'on, people! The 10k tools should never look like this!

called2voyage

@Undo In that case I'm proud of Astro today.

Undo

Lucky.

looks through Astro for stuff to migrate to Space

called2voyage

hey now!

Astro needs what it has

Too bad you didn't make a commitment to Astro...oh, wait. ;)

Undo

I fulfilled my Astro commitment!

(And Jon advised me to focus on Space)

called2voyage

rats

probably good advice for you

Undo

20:15

You are doing pretty well, though.

called2voyage

but if you see anyone else, tell them to go to Astro

Realz Slaw

@Undo rofl :P

@Undo how do you fulfill a commitment

called2voyage

Participate actively in the private beta until it goes public

Undo

@RealzSlaw It's an Area 51 thing. You commit that you'll be active on a site during its beta.

Realz Slaw

@called2voyage ah, how is "actively" measured

called2voyage

20:16

post on occasion

Realz Slaw

@Undo I know, I commited to astronomy.SE

called2voyage

or edit or comment

Undo

@called2voyage You have a huge typo on your front page. You shoul... ah, nevermind. I fixed it for you.

called2voyage

Lack of capitalization is not a typo

Undo

@called2voyage A misplaced 'L' is.

called2voyage

20:17

I would have fixed it, but I like to leave things for other users to earn rep

Undo

@called2voyage Umm....

Realz Slaw

lol

called2voyage

oh I see now

missed that one

Undo

One of the biggest problems that Astro has is that they pretty much live in Space's chatroom :P

called2voyage

@Undo That's not without me trying.

Undo

20:19

So we have a huge influence,

called2voyage

I didn't come in here for like a month.

Undo

Making it easy for us to stear Astro,

For no good reason.

called2voyage

The other problem is that @TildalWave likes to pretend he's a mod of Astro too. ;)

I'm just kidding for the record.

I appreciate his help.

TildalWave

huh?

called2voyage

Did I wake you up?

TildalWave

20:21

you rang m'lord?

No, too early for that, but I'm getting ready to go out

called2voyage

I was just poking fun at you.

TildalWave

mentally preparing, it's damn cold out, not yet used to it

called2voyage

It's getting pretty cold here in the Atlanta area.

TildalWave

@called2voyage well done you! :))

called2voyage

I wouldn't call it damn cold yet, but pretty cold.

TildalWave

20:23

I call it damn cold because I'm not used to it yet, it's not really that cold tho, maybe just a degree below zero C

called2voyage

oh ok, about the same here then...at least part of the time

Undo

Oh, @TildalWave and @Called, you should probably look at Space's user page. I kinda broke something.

TildalWave

didn't get my winter stuff out yet so it'll be double sweater

Undo

Turns out MathJax works in the location.

called2voyage

That's a feature.

Realz Slaw

20:24

HAHAHA

TildalWave

@Undo looks nice to me

OK brb

called2voyage

The real question is will mathjax overflow from your location to another person's location.

Undo

That's what I'm working on.

called2voyage

Do you need my help?

Undo

Sure.

called2voyage

20:26

Put only one set of $$ in your location.

I put some $$ in mine.

Undo

Mmm, I wonder if I can make it look like I have 100k rep or something?

Realz Slaw

lol

mathhax

Undo

I'm going to stop before I get whacked with something.

called2voyage

It doesn't look like it breaks anything to me.

besides messing with spacing

which is really an unavoidable problem in web design

Realz Slaw

21:04

lol

@Undo ask on security.SE

> How do I use mathjax to hack my reputation ?

Rory Alsop

21:54

@RealzSlaw Oh dear...

:-)

Transcript for