Search found 27 matches

by JoeZ
Mon Nov 10, 2014 8:34 am UTC
Forum: What If?
Topic: What-If 0118: "Physical Salary"
Replies: 48
Views: 18400

Re: What-If 0118: "Physical Salary"

I think we're missing the ultimate application here:

What if we channel the money into a large money turbine and then pay the operator according to how much electricity he generates?
by JoeZ
Mon Dec 10, 2012 3:44 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1145: "Sky Color"
Replies: 211
Views: 71389

Re: 1145: "Sky Color"

When I saw this comic at 3AM last night, my sleep-deprived brain was completely unable to comprehend the mirror question. One measly hour of sleep later and I got it immediately. Clearly I should have gotten in a little more shut-eye before finals, but hey, what can I do? Yeah, my immediate answer t...
by JoeZ
Wed Oct 03, 2012 1:55 pm UTC
Forum: What If?
Topic: What-If 0014: "Short Answer Section I"
Replies: 86
Views: 47688

Re: What-if 0014: Short answer section.

I also noticed the issue with the doppler shift question, having just done that problem recently. Solving the relativistic doppler shift equation for u yields; u = [((w_source)/(w_observed))^2 -1]/[((w_source)/(w_observed))^2 + 1] The correct velocity should be closer to; u = c/7 (varying a bit, dep...
by JoeZ
Mon Mar 19, 2012 6:57 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1031: "s/keyboard/leopard"
Replies: 97
Views: 37168

Re: 0131: "s/keyboard/leopard"

In case anybody's curious, here's a revision from before the page was locked due to vandalism;

http://en.wikipedia.org/w/index.php?tit ... =482673927

Every occurrence of keyboard has been replaced with leopard.
by JoeZ
Fri Feb 10, 2012 1:21 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1015: "Kerning"
Replies: 163
Views: 68300

Re: 1015: "Kerning"

True story; I read todays comic while working a problem in my analytical chem book. It included;

􏰆0.167 89% as an error...

Which I read as 0.167 and 89%, prompting serious confusion.

After reading the comic, I figured out that it was in fact 0.16789%. Yet another problem solved by Randall.
by JoeZ
Thu Oct 27, 2011 3:32 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0969: "Delta-P"
Replies: 181
Views: 54533

Re: 0969: "Delta-P"

Well if they had two separate timelines, and you had control over where each portal connected to, then you could do something like go through the portal, and reorient it to point back to the past of the other world, and step back through it. It would be less that time moves faster on one side or th...
by JoeZ
Wed Oct 26, 2011 9:12 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0969: "Delta-P"
Replies: 181
Views: 54533

Re: 0969: "Delta-P"

The fact that so many people are trying to do math based on the time dilation between Narnia and the real world probably has C.S. Lewis rolling in his grave right about now. I found it pretty amusing as well. Especially with so many people doing the math, as if nobody else had already done it, with...
by JoeZ
Thu Oct 06, 2011 2:29 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0961: "Eternal Flame"
Replies: 131
Views: 58399

Re: 0961: "Eternal Flame"

Personally, I would force quit, and have a look at Console for clues on how to make sure the app doesn't crash again, repair permissions, and if my other options fail me, restore a recent backup from Time Machine. That's just me though. This was a very touching tribute, although it made me think it ...
by JoeZ
Wed May 25, 2011 4:31 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0903: "Extended Mind"
Replies: 666
Views: 187127

Re: #903: Extended MInd

I went ahead and logged my path towards philosophy like a good scientist; Start: 0-Zimbabwe 1-Southern Rhodesia 2-Colony 3-Politics 4-collective decisions (group decision making) 5-individuals 6-person 7-human being 8-taxonomically 9-science 10-knowledge 11-facts 12-information 13-sequence 14-mathem...
by JoeZ
Wed May 18, 2011 9:59 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0899: "Number Line"
Replies: 355
Views: 81871

Re: 899: "Number Line"

Wait... can someone who's finished second-grade math argue with that equivalence? Doing simple long division, one can see that stopping the threes at any point would be less than 1/3, and capping it with a digit larger than three would be greater than 1/3. Therefore 0.3... must be 1/3 by the "...
by JoeZ
Wed May 18, 2011 9:11 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0899: "Number Line"
Replies: 355
Views: 81871

Re: 899: "Number Line"

Easy proof 1/3 = 0.3... 0.9... = 3 * 0.3... 3 * 0.3... = 3 * 1/3 3 * 1/3 = 3/3 = 1 therefore 0.9... is exactly equal to 1, because it is exactly three times (the decimal representation of) one third. That's not actually a proof, since you would first need to prove that .3...=1/3. But kudos for usin...
by JoeZ
Mon May 16, 2011 7:29 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0899: "Number Line"
Replies: 355
Views: 81871

Re: 899: "Number Line"

Easy proof 1/3 = 0.3333333333333333333333333333333333333333333333333333333333333333333333333333333333... 0.9999999999999999999999999999999999999999999999... = 3 * 0.33333333333333333333333333333333333333333333333333... 3 * 0.33333333333333333333333333333333333333333333333333... = 3 * 1/3 3 * 1/3 = 3...
by JoeZ
Mon May 16, 2011 1:38 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0899: "Number Line"
Replies: 355
Views: 81871

Re: 899: "Number Line"

phlip wrote:Add in the fact that "37" is the most common random 2-digit number, and I think it was just an invented figure.

It does contain the number 7, which we all know is used in made-up figures...
by JoeZ
Wed Feb 09, 2011 6:13 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0858: "Milk"
Replies: 182
Views: 40320

Re: 0858: "Milk"

I didn't find this one very entertaining. There was a bit of a shock laugh when it turned out that's what the guy was actually thinking, but this really lacks the wit of... pretty much any other XKCD to date. Could have been redeemed with the mouseover text but even that was pretty lame. I hope Frid...
by JoeZ
Sat Jan 29, 2011 7:26 pm UTC
Forum: Religious Wars
Topic: HP vs TI
Replies: 38
Views: 19123

Re: HP vs TI

TI-89 for life. Love the calculator even when when I have the Wolfram|Alpha app (buy now if you don't have it, totally worth it). Yes, I bought it right after the price dropped from their ridiculous value. EDIT: Ah oh, I hated Polish notation in Scheme as it is, why would I even want to figure out ...
by JoeZ
Wed Jan 26, 2011 4:36 am UTC
Forum: News & Articles
Topic: Google Chrome drops H.264 support
Replies: 8
Views: 1787

Re: Google Chrome drops H.264 support

Apple may be a little slower than you might think since H.264 is the only video format iPods (and similar) can play. It'll be at least a couple hardware generations from when they decide to switch to something else before they do away with it completely. Oh, I didn't mean to drop support for H.264....
by JoeZ
Wed Jan 26, 2011 1:53 am UTC
Forum: Logic Puzzles
Topic: Prisoners Problem (Easy Mode)
Replies: 17
Views: 5766

Re: Prisoners Problem (Easy Mode)

I see what you're saying but the sentence Since there are more than two of each type of hat, being unsure after seeing only one hat doesn't provide any clues at all. didn't support that reading of the response. But, if that was what was meant, I apologise for my harsh reading. In general, with n pr...
by JoeZ
Tue Jan 25, 2011 5:00 pm UTC
Forum: Religious Wars
Topic: PC Gamepads
Replies: 34
Views: 5975

Re: PC Gamepads

Real men build their own gamepads with an Arduino (blog cred achieved). 8)
by JoeZ
Mon Jan 24, 2011 6:15 pm UTC
Forum: Logic Puzzles
Topic: Prisoners Problem (Easy Mode)
Replies: 17
Views: 5766

Re: Prisoners Problem (Easy Mode)

Of course, this problem assumes that the backmost prisoner is a competent logician, and he was paying attention and has not forgotten anything or gotten colors and numbers mixed up. One interesting note, the middle guy doesn't seem to do anything in this problem except complicate it and add deta...
by JoeZ
Mon Jan 24, 2011 5:49 pm UTC
Forum: Religious Wars
Topic: The perfect writing tool (to write on paper. directly.)
Replies: 68
Views: 19612

Re: The perfect writing tool (to write on paper. directly.)

For me, it's 0.5mm mechanical pencils or nothing. I prefer one with a long, advancing eraser, because I erase a lot (which also happens to explain why I only ever use pencils). The 0.5mm lead has never given me a problem with smudging and dependably creates the finest line of any writing implement I...
by JoeZ
Mon Jan 24, 2011 2:34 am UTC
Forum: Logic Puzzles
Topic: 7zip Matryoshka
Replies: 164
Views: 27572

Re: 7zip Matryoshka

I feel pretty stupid since, as of this moment, I appear to be the only person who got stuck on number 8. Any hints for me? I've tried dichromacy and deuteranopia, to no avail This is a really fun game though! More of a suggestion than a hint: You are putting too much thought into it. Think of t...
by JoeZ
Mon Jan 24, 2011 2:02 am UTC
Forum: Logic Puzzles
Topic: 7zip Matryoshka
Replies: 164
Views: 27572

Re: 7zip Matryoshka

I feel pretty stupid since, as of this moment, I appear to be the only person who got stuck on number 8. Any hints for me?
Spoiler:
I've tried dichromacy and deuteranopia, to no avail


This is a really fun game though!
by JoeZ
Mon Jan 24, 2011 12:00 am UTC
Forum: Logic Puzzles
Topic: Troll Science: Pi
Replies: 45
Views: 26553

Re: Troll Science: Pi

Oh, this can be solved visually without any math at all! Just imagine zooming infinitely close to the infinite limit. No matter how many times you repeat this process, the edge will never be tangential except at four points, everywhere else it will zigzag, creating a perimeter which is longer than t...
by JoeZ
Sun Jan 23, 2011 11:49 pm UTC
Forum: News & Articles
Topic: Google Chrome drops H.264 support
Replies: 8
Views: 1787

Re: Google Chrome drops H.264 support

Google has yet to play their real trump card - Youtube. Oh my god... that's brilliant. Given that Google has a decent, but still small, set of browser users, I was wondering how they thought they would pull off this seemingly extreme and ill-advised move. But, of course, Google has prepared for thi...
by JoeZ
Sun Jan 23, 2011 6:08 am UTC
Forum: Religious Wars
Topic: I hate math notation!
Replies: 57
Views: 22895

Re: I hate math notation!

I'd much rather read the entire equation on a single line. Which is great, until you have to multiply/divide one fraction (or sum of fractions) by another. Also, math (after algebra) is not really a static thing, with all the erasing and moving and squeezing symbols into spaces I'm doing already, I...
by JoeZ
Fri Jan 21, 2011 2:58 am UTC
Forum: XKCD Meetups
Topic: Florida people
Replies: 231
Views: 58034

Re: Florida people

Another Florida XKCD fan signing in; I live in Volusia County. Checked out geohash opportunities for a while but they've always ended up on the exact spot to maximize the distance both in my graticule and the neighboring ones, and three-hour drives do not fit into my schedule... Oh, and if you're lo...
by JoeZ
Thu Jan 20, 2011 3:45 pm UTC
Forum: Religious Wars
Topic: PC != Windows
Replies: 190
Views: 136796

Re: PC != Windows

The way I see it, Macs are PC's in the same way that squares are rectangles. Usually, it's much more helpful to refer to a square as a square, rather than a rectangle, because the square has special properties. A mac can run osx without modification of the OS or kexts, a PC can run one or more OS's ...

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