Search found 1200 matches

by Sizik
Fri Jul 31, 2009 4:52 pm UTC
Forum: Science
Topic: Firing a bullet from a train
Replies: 66
Views: 5858

Re: Firing a bullet from a train

EnderSword wrote:It's not super hard to find out, but you'd have to know the resistance of the air.


Seems to be about 4 x 10^13 ohm meters at sea level for clear, fair-weather air.
by Sizik
Sun Jul 26, 2009 7:09 am UTC
Forum: Religious Wars
Topic: Least Epic Religious War?
Replies: 87
Views: 17340

Re: Least Epic Religious War?

Dr. Pepper: Bottled by Coca-cola bottlers vs. bottled by Pepsi bottlers.
by Sizik
Sun Jul 26, 2009 6:31 am UTC
Forum: Computer Science
Topic: Wedding ring inscription
Replies: 43
Views: 8731

Re: Wedding ring inscription

janusmccarthy wrote:00110011 00111000

<3


You mean 00111100 00110011 ?
by Sizik
Sat Jul 25, 2009 2:04 am UTC
Forum: Mathematics
Topic: Encoding a book onto a meterstick
Replies: 14
Views: 1832

Re: Encoding a book onto a meterstick

So, theoretically (ignoring subatomic stuff), would that point only represent one string of characters? Could it represent a different string that has a different amount of characters? There are 36 6.4 distinct markings you could make. You could have one mark represent the Bible, a different mark t...
by Sizik
Fri Jul 24, 2009 5:40 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0451: "Impostor"
Replies: 381
Views: 97123

Re: Help me find this comic!

by Sizik
Thu Jul 23, 2009 6:40 am UTC
Forum: News & Articles
Topic: Reading into Twilight
Replies: 137
Views: 10704

Re: Reading into Twilight

Bella is the main character of the story, but I'll bet you don't know her last name


Is it Lugosi?
by Sizik
Mon Jul 13, 2009 12:24 am UTC
Forum: Language/Linguistics
Topic: words you know exist but you wonder why.
Replies: 102
Views: 15982

Re: words you know exist but you wonder why.

Closer to the topic, can someone please give me one good reason why we need specific names for most phobias? A few phobias certainly have descriptive power, but is anyone really going to use triskaidekaphobia (let alone its sibling, paraskavedekatriaphobia) as opposed to an English description of t...
by Sizik
Sun Jul 12, 2009 1:11 am UTC
Forum: News & Articles
Topic: TIMES SQ. COPS VS. SUPER HEROES
Replies: 17
Views: 1585

Re: TIMES SQ. COPS VS. SUPER HEROES

The Reaper wrote:
Vaniver wrote:The number of things a person needs a license to do is worrying.

Sir, I'm afraid you're going to need a license for that worrying.


Excuse me, could you show me your license-enforcement license?
by Sizik
Thu Jul 09, 2009 8:28 pm UTC
Forum: News & Articles
Topic: Black kids kicked out of pool in Philly
Replies: 55
Views: 5855

Re: Black kids kicked out of pool in Philly

EsotericWombat wrote:And seeing as you can't open up a storefront and put a "whites only" sign in front of it?


Unless it's a laundromat.
by Sizik
Mon Jul 06, 2009 11:37 pm UTC
Forum: Language/Linguistics
Topic: "off of"
Replies: 80
Views: 12349

Re: "off of"

Quincunx wrote:"off of" sounds silly unless you pronounce it right. i.e., 'awf ov'. In the same way one says 'there is not enough room in the room' with the first oo pronounced as in 'good', and the second as in 'doom'.


I'd pronounce them both as in "doom".
by Sizik
Sun Jul 05, 2009 4:28 am UTC
Forum: Mathematics
Topic: 0/0 Debate
Replies: 13
Views: 1922

Re: 0/0 Debate

When x = 0, both x/x and x2/x are 0/0.
But, limx -> 0 x/x = 1 and limx -> 0 x2/x = 0
by Sizik
Sat Jun 27, 2009 7:47 pm UTC
Forum: Mathematics
Topic: Geometry question- Chords (or quadrilaterals)
Replies: 4
Views: 606

Re: Geometry question- Chords (or quadrilaterals)

xkcd: Helping people answer their own questions since 1956.
by Sizik
Mon Jun 22, 2009 11:01 pm UTC
Forum: News & Articles
Topic: ASCAP wants to be paid when your phone rings.
Replies: 12
Views: 1773

ASCAP wants to be paid when your phone rings.

http://www.eff.org/deeplinks/2009/06/ascap-wants-be-paid- ASCAP (the same folks who went after Girl Scouts for singing around a campfire) appears to believe that every time your musical ringtone rings in public, you're violating copyright law by "publicly performing" it without...
by Sizik
Sun Jun 21, 2009 10:25 pm UTC
Forum: Religious Wars
Topic: Coding Fonts
Replies: 117
Views: 29104

Re: Coding Fonts

EXPERT PROGRAMMERS use wingdings.
by Sizik
Sat Jun 20, 2009 4:57 am UTC
Forum: Science
Topic: Speed bump generators
Replies: 13
Views: 1806

Re: Speed bump generators

Zhatt wrote:What about hybrid cars? The breaking power that would normally be used to charge the batteries is now being stolen by this device because now you need to break less.

Wouldn't breaking less be a good thing? Repair shops can be so expensive nowadays.
by Sizik
Thu Jun 18, 2009 6:26 am UTC
Forum: Language/Linguistics
Topic: Words that you are sure exist, but can't find
Replies: 225
Views: 81790

Re: Words that you are sure exist, but can't find

Continuing the tales of woe...I got marked down in a paper once for using the less common meaning of 'saw' ?? What is the less common meaning? I was wondering if it may be to use a saw (the tool) upon something, but I can't see how a teacher could have marked them down unless they used it in an obv...
by Sizik
Thu Jun 18, 2009 6:11 am UTC
Forum: Mathematics
Topic: Real-world examples of -x * -y = +z
Replies: 66
Views: 7482

Re: Real-world examples of -x * -y = +z

-(-12) 12 This is the step we're discussing. I don't see the relevance of the other stuff you wrote; it's neither a proof nor an intuition, since it depends on a quirk of notation. I sort of skipped a step there. Rather thinking of -(-12) as (-1)(-12), think of it as 0 - (-12). Subtracting a negati...
by Sizik
Tue Jun 16, 2009 5:58 am UTC
Forum: Science
Topic: Football (US) Physics
Replies: 20
Views: 2565

Re: Football (US) Physics

tbone694 wrote:with respect to to the ground
by Sizik
Tue Jun 16, 2009 3:23 am UTC
Forum: Mathematics
Topic: Real-world examples of -x * -y = +z
Replies: 66
Views: 7482

Re: Real-world examples of -x * -y = +z

One thing I noticed is that adding a zero onto the left of a number (or right, if you have a decimal point) does not change a number's value. For example, 4 = 04 (and 4.9 = 4.90 (unless you're a scientist)). The same applies to negative numbers, as -4 = 0-4. Therefore you can treat negative numbers ...
by Sizik
Fri Jun 12, 2009 4:51 am UTC
Forum: Science
Topic: Where do mad scientists hang out?
Replies: 20
Views: 2971

Re: Where do mad scientists hang out?

mamerong wrote:They're mostly mad engineers, if you think about it.

No, the mad engineers build self-assembling automatic sentry guns and ammo dispensers, usually using any available scrap metal. Mad scientists build doomsday devices.
by Sizik
Sun Jun 07, 2009 8:25 am UTC
Forum: Science
Topic: Homemade pepper spray? (Among other chemical weapons)
Replies: 5
Views: 2222

Re: Homemade pepper spray? (Among other chemical weapons)

Tobasco sauce + water + spray bottle?
by Sizik
Sun May 31, 2009 1:16 am UTC
Forum: Science
Topic: The First Self-Replicator?
Replies: 10
Views: 1598

Re: The First Self-Replicator?

Proteins are as 1-D as DNA is, being a straight line sequence of amino acids that is just tangled up in 3D space. They're like a tangled knot of string.
by Sizik
Fri May 22, 2009 5:46 am UTC
Forum: Science
Topic: Have you ever wished a particular theory didn't work?
Replies: 59
Views: 5479

Re: Have you ever wished a particular theory didn't work?

I wonder what it'd be like to live in a world without causality. I suppose it'd be like trying to determine the order of cars driving around in an infinite parking lot instead of on an infinite one-way highway.
by Sizik
Fri May 22, 2009 12:42 am UTC
Forum: Mathematics
Topic: My friend thinks that you can divide by zero.
Replies: 35
Views: 5064

Re: My friend thinks that you can divide by zero.

If 1/0 = \infty , then \infty\times0 = 1 (this is the definition of division). So: \begin{eqnarray} 0+0 & = & 0 \\ \infty\times(0+0) & = & \infty\times0 \\ \infty\times0 + \infty\times0 & = & \infty\times0 \\ 1 + 1 & = & 1 \\ 2 & = & 1 \end{eqnarray} ...
by Sizik
Thu May 21, 2009 6:09 pm UTC
Forum: Mathematics
Topic: My friend thinks that you can divide by zero.
Replies: 35
Views: 5064

Re: My friend thinks that you can divide by zero.

Just use that to prove that 2 = 1. If that doesn't work then you're friend is beyond help. That only works if 0/0 = 1, not if 1/0 = \infty . a = b = 1 a = b ab = b^2 ab - a^2 = b^2 - a^2 a(b - a) = (b + a)(b - a) The next step is to divide both sides by (b - a), leaving a = b + a, but that doesn't ...
by Sizik
Fri May 15, 2009 6:49 am UTC
Forum: Language/Linguistics
Topic: expressions/turns of phrase tha you love . . . share the joy
Replies: 52
Views: 6690

Re: expressions/turns of phrase tha you love . . . share the joy

I used to dislike "the exception that proves the rule" until I knew what it meant (if there weren't a rule, you wouldn't have to make an exception).
by Sizik
Sun May 03, 2009 6:01 am UTC
Forum: Language/Linguistics
Topic: Euphemisms
Replies: 55
Views: 7246

Re: Euphemisms

Bobber wrote:I was watching Soylent Green when I heard another one: locate as a euphemism for find. "I can't locate it!" really just means "I can't find it!" in most cases - saying locate just makes you sound less senile.


That's a synonym, not a euphemism.
by Sizik
Fri Apr 17, 2009 3:50 am UTC
Forum: Mathematics
Topic: Definition of algebraic number
Replies: 16
Views: 1429

Re: Definition of algebraic number

Hackfleischkannibale wrote:strawberries are nuts

I think a better comparison would be saying that oranges are berries.
by Sizik
Tue Mar 17, 2009 11:22 pm UTC
Forum: Mathematics
Topic: Irrational numbers don't exist
Replies: 51
Views: 5865

Re: Irrational numbers don't exist

chapel wrote:To paraphrase Douglas Adams: If you manage to convince yourself that black is white, you kill yourself at the first zebra that walks by.


Just to clarify, the exact quote is "[Man] goes on to prove that black is white and gets himself killed at the next zebra crossing."
by Sizik
Tue Feb 24, 2009 1:12 am UTC
Forum: Mathematics
Topic: Homework: I am stuck regarding Geometric Mean in Triangles
Replies: 11
Views: 842

Re: Homework: I am stuck regarding Geometric Mean in Triangles

Internetmeme wrote:I can't use the Quadratic Formula, because the 36 would become negative moving it over to make the equation equal to zero, or can I?


You can.
by Sizik
Sat Dec 20, 2008 5:34 am UTC
Forum: Mathematics
Topic: On the capabilities of functions
Replies: 25
Views: 2573

Re: On the capabilities of functions

MartianInvader wrote:If you don't like sin(x) but you're okay with imaginary numbers, you could always try e^{ix} - e^{-ix}... don't worry, it always gives you a real answer. Heh heh heh.


That should be [imath]e^{ix}+e^{-ix}[/imath]
by Sizik
Thu Nov 13, 2008 3:29 am UTC
Forum: Science
Topic: ÿ
Replies: 67
Views: 5463

Re: Faster than the Speed of Light-Without violating relativity

You can't talk about scientific theories lacking scientific education without mentioning Neal Adams and his expanding earth theory . I've had a (nominally) similar idea that, because gravity is acceleration, perhaps the Earth is actually expanding outward at 9.81 m/s. Of course, this would imply th...
by Sizik
Sun Oct 26, 2008 7:01 pm UTC
Forum: Gaming
Topic: You gotta get into Dwarf Fortress if you haven't already.
Replies: 4583
Views: 643446

Re: You gotta get into Dwarf Fortress if you haven't already.

Awia wrote:What do I do with a lone art_image-10.dat file when I download a save, I can't for the life of me get it to work.


I believe you can do exactly nothing with just that.
by Sizik
Mon Oct 20, 2008 3:11 am UTC
Forum: Mathematics
Topic: Trig functions, derivation, and calc homework
Replies: 5
Views: 1044

Re: Trig functions, derivation, and calc homework

Ah, I get it now. Still, it kinda seems like they just pulled that out of nowhere.
by Sizik
Mon Oct 20, 2008 1:54 am UTC
Forum: Mathematics
Topic: Trig functions, derivation, and calc homework
Replies: 5
Views: 1044

Trig functions, derivation, and calc homework

One problem in my AP Calc homework is as follows: tan y = x Find dy/dx implicitly and find the largest interval of the form -a < y < a such that y is a differentiable function of x. Then express dy/dx as a function of x. So I got dy/dx = cos 2 y Interval is -pi/2 < y < pi/2 y = tan -1 x, so dy/dx = ...
by Sizik
Sat Oct 04, 2008 3:13 am UTC
Forum: Mathematics
Topic: University Calculus Bonus Problem
Replies: 16
Views: 2059

Re: University Calculus Bonus Problem

Assuming that Alice and Bob each get the piece the other didn't pick, I'd say the maximum cake Alice can get is 1.9999, as she cuts an infinitesimal slice off of each cake and Bob, not wanting any cake to begin with, takes the 0.0000001 slice of cake.
by Sizik
Fri Sep 26, 2008 11:51 pm UTC
Forum: Science
Topic: Total energy of an ideal fluid in a pipe...
Replies: 11
Views: 1040

Re: Total energy of an ideal fluid in a pipe...

I believe the energy goes into pushing the fluid in front of it further down the pipe.
by Sizik
Tue Sep 16, 2008 2:34 am UTC
Forum: Mathematics
Topic: Divisibility rules
Replies: 6
Views: 2246

Divisibility rules

I was wondering to myself the other day, "How come if you add up all the digits in a (base 10) number, you can tell if it's divisible by 3 or 9?" So I did some thinking about it and came up with these: Simple divisibility rules for a whole number x in base n. (n being a positive integer): ...

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