Search found 64 matches

by thornahawk
Fri Dec 19, 2008 11:46 am UTC
Forum: Science
Topic: Question Re: Giant Hole Through the Earth
Replies: 87
Views: 23831

Re: Question Re: Giant Hole Through the Earth

Senefen wrote:I know there is one, it's a derivative of
PV=nRT (pressure[kPa]*volume[L]=Number of moles[mol]* 8.31*Temperature[K])
R = Ryberg constant


My physics ain't überly good, but the Rydberg constant and the molar gas constant have different units, much less values.

~ Werner
by thornahawk
Fri Dec 19, 2008 5:22 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0519: "11th Grade"
Replies: 204
Views: 43926

Re: "11th Grade" Discussion

Beating people to the punch, I recommend reading John Taylor Gatto's books. "We Need Less School, Not More" is one of his nice essays.

~ Werner
by thornahawk
Fri Dec 19, 2008 5:12 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0519: "11th Grade"
Replies: 204
Views: 43926

Re: "11th Grade" Discussion

"The learning beyond the four walls is more often than not underrated."

~ Werner
by thornahawk
Thu Dec 18, 2008 3:30 pm UTC
Forum: General
Topic: The Firefox Plugin of Pure Awesomeness
Replies: 23
Views: 3071

Re: The Firefox Plugin of Pure Awesomeness

Be sure to update the add-on after installing. The link I gave wasn't to the latest, but trying the link to the latest from their site bombed for me.

~ Werner
by thornahawk
Thu Dec 18, 2008 9:46 am UTC
Forum: General
Topic: The Spider (Image) From Hell
Replies: 264
Views: 60013

Re: The Spider (Image) From Hell

Bird-eating spiders... oh joy.

Spoiler:
Image


Garfield's gonna have a good time... :P

...and here's a swell guy:

Spoiler:
Image


~ Werner
by thornahawk
Thu Dec 18, 2008 9:24 am UTC
Forum: General
Topic: The Firefox Plugin of Pure Awesomeness
Replies: 23
Views: 3071

Re: The Firefox Plugin of Pure Awesomeness

Hmm...

Looks good. :D

~ Werner
by thornahawk
Thu Dec 18, 2008 4:51 am UTC
Forum: News & Articles
Topic: Bush attacked with shoes
Replies: 95
Views: 8350

Re: Bush attacked with shoes

^ knew that. ;) I merely wanted to introduce some nice French into the discussion.

The joke going around where I live is that people will eventually use a flag that has a shoe in place of a crescent. :D

~ Werner
by thornahawk
Thu Dec 18, 2008 4:17 am UTC
Forum: News & Articles
Topic: Bush attacked with shoes
Replies: 95
Views: 8350

Re: Bush attacked with shoes

Well, nothing like lèse majesté can be pinned on the guy, right? :P

Anyway, follow-ups:

Marry my daughter!
Give him an award!
What, $ 10,000,000?!

My take: guy can't do moving targets. ;)

~ Werner
by thornahawk
Thu Dec 18, 2008 2:43 am UTC
Forum: Science
Topic: Question Re: Giant Hole Through the Earth
Replies: 87
Views: 23831

Re: Question Re: Giant Hole Through the Earth

Only slightly related, but oh well... how would a large enough toroidal (doughnut-shaped) body exert gravity?

~ Werner
by thornahawk
Thu Dec 18, 2008 1:33 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0518: "Flow Charts"
Replies: 147
Views: 41930

Re: "Flow Charts" Discussion

I was half-expecting to see "you poor bastard" somewhere there... :P

~ Werner
by thornahawk
Tue Dec 02, 2008 4:22 pm UTC
Forum: Mathematics
Topic: Length of Curve
Replies: 9
Views: 1526

Re: Length of Curve

Seeing that everybody's giving their arc-length expressions, I always preferred the Argand (complex) form to parametric equations: s=\int_{a}^b \left|z^\prime\left(t\right)\right|\mathrm{d}t for a plane curve represented as z(t)=f(t)+i\,g(t) , f(t) and g(t...
by thornahawk
Tue Dec 02, 2008 4:09 pm UTC
Forum: Mathematics
Topic: The Golden Ratio
Replies: 32
Views: 3530

Re: The Golden Ratio

I like [imath]\phi=\frac{1+\sqrt{5}}{2}[/imath] because it keeps cropping up in the geometry of the pentagon (and by extension, the pentagram and the dodecahedron).

Fun trigonometry practice: prove that [imath]\cos(\pi/5)[/imath] is equal to half the golden ratio. ;)

~ Werner
by thornahawk
Mon Dec 01, 2008 10:19 am UTC
Forum: Mathematics
Topic: Graphic Calculator Brand
Replies: 29
Views: 3175

Re: Graphic Calculator Brand

after some digging I have found a Ti-83+ emulator http://www.ticalc.org/archives/files/fileinfo/261/26120.html if anyone wanted to try out one without buying it A list of most of the known TI calculator emulators can be found here . Note that these only work if you have a ROM file with you on hand,...
by thornahawk
Mon Dec 01, 2008 5:09 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0511: "Sleet"
Replies: 83
Views: 19345

Re: "Sleet" Discussion

As much as I don't like DRM either, I can't help but wonder how some of its defenders can blather for days on end... ;)

~ Werner
by thornahawk
Mon Dec 01, 2008 4:37 am UTC
Forum: Mathematics
Topic: Help with a Tricky Derivative Proof
Replies: 9
Views: 1901

Re: Help with a Tricky Derivative Proof

BIG HINT: First, you might want to show the truth of the so-called "backward difference form": f'(x) = \lim_{h\rightarrow 0} \frac{f(x) - f(x - h)} {h} and then work from that and the other derivative formula. ~ Werner P.S. Have you discussed Taylor's Theorem in...
by thornahawk
Sat Nov 29, 2008 4:45 pm UTC
Forum: Hardware
Topic: TI-84 modifications?
Replies: 33
Views: 10911

Re: TI-84 modifications?

I'm not usually keen on promoting stuff, but this seemed appropriate.

~ Werner
by thornahawk
Thu Nov 27, 2008 7:27 pm UTC
Forum: Mathematics
Topic: Very VERY Simple Math That's Confusing Me...
Replies: 4
Views: 1366

Re: Very VERY Simple Math That's Confusing Me...

Well the slope of the perpendicular ought to be -3/5, for starters...

~ Werner

P.S. This too might be useful...
by thornahawk
Thu Nov 27, 2008 10:47 am UTC
Forum: News & Articles
Topic: It starts with mannoths..
Replies: 60
Views: 5969

Re: It starts with mannoths..

If the mammoths ever come back, I'd sure like to see the way things work... ;)

~ Werner
by thornahawk
Thu Nov 27, 2008 10:22 am UTC
Forum: Computer Science
Topic: OR and XOR
Replies: 38
Views: 6135

Re: OR and XOR

iirc latin has seperate words for exclusive or and inclusive or, its just an english thing. habet "aut" et "vel", nescio qualem discrepantiam esse. (io!) N.B. "vel" is why the symbol sometimes encountered for logical OR is a\vee b . ;) As for "aut" ... ~ Werner
by thornahawk
Wed Nov 26, 2008 7:02 am UTC
Forum: Mathematics
Topic: Fractals, baby! Vote now!
Replies: 45
Views: 8322

Re: Fractals, baby! Vote now!

I like this "clockwork arm" curve I came up with but haven't been able to find on the internet: x = Sum[cos(t * 2^n) / 2^n | n ranges from 0 to infinity] y = Sum[sin(t * 2^n) / 2^n | n ranges from 0 to infinity] and t ranges from 0 to 2pi (of course) ParametricPlot[{NSum[(2^-k)Cos...
by thornahawk
Wed Nov 26, 2008 5:21 am UTC
Forum: Science
Topic: Favorite home experiments
Replies: 590
Views: 470420

Re: Favorite home experiments

^ you seem to forget ice cream making and making rubber objects brittle as glass. ;)

~ Werner
by thornahawk
Tue Nov 25, 2008 3:43 pm UTC
Forum: Computer Science
Topic: OR and XOR
Replies: 38
Views: 6135

Re: OR and XOR

Wrt the "and/or", it is to cover legal asses because of the way "or" can be interpreted to mean both "or" or "xor", and legal and other important texts need to eliminate any potential ambiguity. Reminds me... I had just put down my copy of Strunk and White: A...
by thornahawk
Tue Nov 25, 2008 12:28 pm UTC
Forum: General
Topic: stupidest comment ever
Replies: 339
Views: 33320

Re: stupidest comment ever

My organic chemistry teacher today, on S2N reactions: Your teacher should probably worry about something other than her arithmetic too: those are called S N 2 reactions. ;) On topic: "Oh me yarm it has chlorine! CHLORINATED STUFF ARE DANGEROUS!" I might hurl the salt shaker at that guy th...
by thornahawk
Tue Nov 25, 2008 4:48 am UTC
Forum: General
Topic: Types of alcohol and their effects...
Replies: 83
Views: 5994

Re: Types of alcohol and their effects...

About absinthe, a quote from somebody I know, from another forum I read: I am not disputing your remarks. I am reminded however of the similar controversies surrounding the substance thujone and the essential oil of wormwood ( A. absinthium ) the much demonized herbal for which absinthe is named. Su...
by thornahawk
Wed Nov 19, 2008 3:27 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

WTF WOULD SOMEONE WANT TO BUY SOMEONE ELSE'S HAIR!? Back in the day, there were none of those miracle acrylic polymers that looked and felt like hair for wig (and dolls too) use. Therefore... they use actual hair. Collected from hairdressers, barbers, or people like Della. ~ Werner P.S. Ah... inter...
by thornahawk
Wed Nov 19, 2008 2:28 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

The coins were withdrawn yes, but if I am to believe this, they weren't demonetized and thus remained legal tender around the time O. Henry wrote the short story.

~ Werner
by thornahawk
Wed Nov 19, 2008 6:41 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

digory wrote:So do dueling roombas exist, or does r.m. just want to see if someone will try it? Google revealed nothing.


Hmm...

~ Werner
by thornahawk
Wed Nov 19, 2008 6:24 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

"One brother sells his pocket watch to buy his sister..."

"were husband and wife"

"Maybe you're both right?"

It was supposedly a joke... ;)

~ Werner
by thornahawk
Wed Nov 19, 2008 6:15 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

"gift of the Magi" ? please explain... One brother sells his pocket watch to buy his sister a comb to braid her hair. However, the sister sells her hair to get his a chain for his pocket watch. Eh, my recollection was that Jim and Della were husband and wife... ~ Werner Maybe you're both ...
by thornahawk
Wed Nov 19, 2008 5:41 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

sporkify wrote:
wizzfizz wrote:"gift of the Magi" ? please explain...

One brother sells his pocket watch to buy his sister a comb to braid her hair. However, the sister sells her hair to get his a chain for his pocket watch.


Eh, my recollection was that Jim and Della were husband and wife...

~ Werner
by thornahawk
Wed Nov 19, 2008 5:08 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0506: "Theft of the Magi"
Replies: 136
Views: 31850

Re: "Theft of the Magi" Discussion

Leave it to Hat Guy to corrupt O. Henry. ;)

~ Werner
by thornahawk
Tue Nov 18, 2008 4:33 pm UTC
Forum: News & Articles
Topic: Billions and Billions of Positrons
Replies: 6
Views: 1194

Re: Billions and Billions of Positrons

I have a not-too-fantastic application in mind: PET scans. :) How might this technology help?

~ Werner
by thornahawk
Tue Nov 18, 2008 4:31 pm UTC
Forum: News & Articles
Topic: PETA's take on Cooking Mama
Replies: 167
Views: 12415

Re: PETA's take on Cooking Mama

PETA makes me happy because their existence led to the creation of hilarious bumper stickers. "I, too, am fond of animals! What are your recipes?" I swear, does PETA ever do anything that helps their reputation? They hire celebrities. Seriously. That's about it. On the other hand, what wi...
by thornahawk
Tue Nov 18, 2008 1:50 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0503: "Terminology"
Replies: 292
Views: 46629

Re: Terminology

Don't worry, I forsee some text-replacing or text-deleting ninjas about to come by... ;)

Back (somewhat) on topic: you'd wonder why it's easier to buy a magnetic compass than a gyrocompass...

~ Werner
by thornahawk
Mon Nov 17, 2008 6:10 pm UTC
Forum: Mathematics
Topic: Fractals, baby! Vote now!
Replies: 45
Views: 8322

Re: Fractals, baby! Vote now!

I like Menger's sponge: (* If[$VersionNumber < 5] *) Show[Graphics3D[ Join[{EdgeForm[], SurfaceColor[Hue[0.47], Hue[0.12], 1.38]}, Nest[Function[ g3d, (Flatten[ Cases[g3d, _Cuboid, Infinity]] /. {x_?NumericQ, y_?NumericQ, z_?NumericQ} :> {x, y, z}/3 - #) & /@ Select[Flatten[Outer[List, Sequence ...
by thornahawk
Mon Nov 17, 2008 2:48 pm UTC
Forum: Language/Linguistics
Topic: Word Etymology & Origins, &c., &c.
Replies: 88
Views: 15279

Re: Word Etymology & Origins, &c., &c.

They aren't etymologically related in the sense of both coming from the same ancient word. I just wanted to point out how the two words jive, in the sense that sarcasm is one of the tools of the trade of cynics. ;P Dogs like to bite flesh. ;) So as not to derail, I offer the interesting etymology of...
by thornahawk
Mon Nov 17, 2008 2:27 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0505: "A Bunch of Rocks"
Replies: 406
Views: 114905

Re: "A Bunch of Rocks" Discussion

Anyway, at least I know what happened to all those missing socks. I have it on the authority of a appliance-engineer friend that washing-machine manufacturers are required under pain of death by assplosion to install a moderate sized black hole into each washing machine. ;) ...which he told me whil...
by thornahawk
Mon Nov 17, 2008 5:27 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0505: "A Bunch of Rocks"
Replies: 406
Views: 114905

Re: "A Bunch of Rocks" Discussion

Fresh from S. Wolfram...

Frankly, it's boring compared to most of the other CellularAutomaton[] rules...

~ Werner
by thornahawk
Mon Nov 17, 2008 5:21 am UTC
Forum: Language/Linguistics
Topic: Word Etymology & Origins, &c., &c.
Replies: 88
Views: 15279

Re: Word Etymology & Origins, &c., &c.

I always liked pointing out how related the words "sarcasm" and "cynic" are.

Sarcasm can be figuratively taken to be "flesh rending/biting"

Cynic comes from the Latin for "dog".

Dogs, being carnivores, like to "bite flesh".

:D

~ Werner
by thornahawk
Mon Nov 17, 2008 4:16 am UTC
Forum: Language/Linguistics
Topic: Language practice threads
Replies: 148
Views: 139688

Re: Language practice threads [searching: Tagalog/Bahasa]

If any of you start a Filipino thread, I would be quite happy to talk a bit on the nuances. ;) Takers?

~ Werner

Go to advanced search