Search found 45 matches

by Lothario O'Leary
Wed Mar 27, 2019 8:16 pm UTC
Forum: Science
Topic: Verifying physics at home
Replies: 15
Views: 2190

Re: Verifying physics at home

Really the big problem is, how does one verify that a laser works? I'm not aware of any method to produce a laser at home.
by Lothario O'Leary
Mon Mar 11, 2019 11:32 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2122: "Size Venn Diagram"
Replies: 37
Views: 5230

Re: 2122: "Size Venn Diagram"

Maybe not "end", but, given the readership demographic, "endian" should have featured. You're right. This is conspicuously missing. To be fair, the area where it would have gone already had four other terms in it (the most of any area aside from the large "single set" ...
by Lothario O'Leary
Mon Mar 11, 2019 4:28 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2122: "Size Venn Diagram"
Replies: 37
Views: 5230

Re:

Soupspoon wrote:Though the lack of "members of none of the sets" is an omission that we ought to correct.
Bo Lindbergh wrote:But what about "grand"?
Seconding both of those, though a full 6-set diagram would be pretty darn complicated.

("Father", I think, only works with "grand" and not any of the other five, but finding examples of other combinations might be rather tricky.)
by Lothario O'Leary
Mon Mar 11, 2019 3:41 pm UTC
Forum: Language/Linguistics
Topic: Hardest alphabetical spellings
Replies: 9
Views: 5262

Re: Hardest alphabetical spellings

Tibetan is said to be very problematic in both directions, though there's some uncertainty as to whether the Tibetan writing system counts as alphabetical. Thai is similar (though, IIRC, somewhat milder), and more of an alphabet. I would say that Russian is actually pretty bad at both spelling and p...
by Lothario O'Leary
Mon Mar 11, 2019 3:07 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2122: "Size Venn Diagram"
Replies: 37
Views: 5230

Re:

Bo Lindbergh wrote:But what about "grand"?

Does "grand" apply to any examples on this diagram? We might need a whole separate diagram for any of those combinations plus "grand".
by Lothario O'Leary
Mon Mar 11, 2019 2:44 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2122: "Size Venn Diagram"
Replies: 37
Views: 5230

2122: "Size Venn Diagram"

https://imgs.xkcd.com/comics/size_venn_diagram.png Title text: Terms I'm going to start using: The Large Dipper, great potatoes, the Big Hadron Collider, and Large Orphan Annie. (IMHO, "little end" is plausible enough that "end" should be with moved to the area where "world...
by Lothario O'Leary
Thu Nov 29, 2018 5:47 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2078: "Popper"
Replies: 19
Views: 4788

Re: 2078: "Popper"

Well, to be fair, that way (probably) lies weirdness. To the best of my knowledge (and recollection), no one had yet proved that Karl Popper wasn't a camel.

Does this mean that we're supposed to behave as if he could have been one?

(Relevant xkcd. Probably.)
by Lothario O'Leary
Tue Oct 16, 2018 9:35 am UTC
Forum: Mathematics
Topic: Equivalency on Mutliple Intervals
Replies: 10
Views: 11343

Re: Equivalency on Mutliple Intervals

Analytic functions are just about the most nicely-behaved functions you can find. If there's a property that "makes sense" for functions to do, then odds are that it will be true for analytic functions, but outside of them there will be some weird pathological example that breaks your pro...
by Lothario O'Leary
Wed Aug 22, 2018 10:43 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2034: "Equations"
Replies: 30
Views: 7951

Re: 2034: "Equations"

I think we should start using digammas for functions. Well, in a way, we already do - though that particular digamma is actually coincidental! There is also one known use of Cyrillic: Ш is the Tate-Shafarevich group (and a few other things, apparently, but this particular use is definitely the Cyri...
by Lothario O'Leary
Thu Aug 02, 2018 2:33 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2003: "Presidential Succession"
Replies: 72
Views: 16468

Re: 2003: "Presidential Succession"

Another idea for the line of succession is any living person with the same last name as a previous President. I read that about 99.9 percent of people named Washington are African-Americans. I wonder what the percentage is for people named Lincoln, Jefferson or Franklin. I assume you know Franklin,...
by Lothario O'Leary
Sat Jun 09, 2018 7:53 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2003: "Presidential Succession"
Replies: 72
Views: 16468

Re: 2003: "Presidential Succession"

Michael Torsten Kreuger (b. 1983) is possibly the first (or, at least, the first adult) natural-born US citizen in the line, somewhere in the 110s or thereabouts ("possibly" because there are some marriage-related problems in his ancestry, and the WARGS list does not, in fact, include him...
by Lothario O'Leary
Fri Jun 08, 2018 4:45 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2003: "Presidential Succession"
Replies: 72
Views: 16468

Re: 2003: "Presidential Succession"

I wonder how many, if any, of those 5753 are natural-born citizens of the United States. IIRC, there's an American actor somewhere in that line, but I forgot who they were. [EDIT: not the one I meant - in particular, they were male - but one candidate is Catherine Oxenberg .] Michael Torsten Kreuge...
by Lothario O'Leary
Sat Jan 20, 2018 12:46 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1944: "The End of the Rainbow"
Replies: 48
Views: 10951

Re: 1944: "The End of the Rainbow"

And, initially thought that a Billion Billion made a Trilllion, a Trillion Trillion made a Quadrillion, i.e.1k to the power 2 N (had I known of exponentials like that, at such a young age), which makes a handy Ultra-Long scale that works well with easily derived magnitudes of accuracy far further i...
by Lothario O'Leary
Wed Jan 03, 2018 7:49 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1935: "2018"
Replies: 66
Views: 10921

Re: 1935: "2018"

The mean tropical year is measured at 365.24219 days, but is gradually getting smaller because the slowing of the earth's rotation is making the days longer. This means that in the long-run my system would be more accurate than either of those proposals. In discussions like this one the mean Gregor...
by Lothario O'Leary
Sat Dec 30, 2017 5:05 pm UTC
Forum: Language/Linguistics
Topic: Longest Name
Replies: 25
Views: 10890

Re: Longest Name

My two cents: I think longer names are primarily used in order to distinguish names that are the same when shorter. So "The" Bach has to be Johann Sebastian Bach because he had relatives named Johann Nicolaus Bach, Johann Christoph Bach, Johann Snagglepuss Bach, etc... and when you click ...
by Lothario O'Leary
Wed Dec 20, 2017 6:36 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1071: "Exoplanets"
Replies: 176
Views: 49907

Re: 1071: "Exoplanets"

(You seem to have missed Cronus, but which (theoretically discovered) way round with Jove I wouldn't know.) Jupiter is rather more visible than Saturn - even at its dimmest, Jupiter is brighter than any star (except the Sun); Saturn has two to five stars brighter than it, depending on relative posi...
by Lothario O'Leary
Fri Dec 15, 2017 8:48 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1071: "Exoplanets"
Replies: 176
Views: 49907

Re: 1071: "Exoplanets"

yeah, it's a stupid convention. just about every sf book since ever has numbered planets with roman numerals from I (Sol III), why didn't astromomers adopt that sensible notation? Now I'm wondering what would Earth be called under the astronomical exoplanet convention, assuming Sol for the star. If...
by Lothario O'Leary
Fri Dec 15, 2017 1:00 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1071: "Exoplanets"
Replies: 176
Views: 49907

Re: 1071: "Exoplanets"

yeah, it's a stupid convention. just about every sf book since ever has numbered planets with roman numerals from I (Sol III), why didn't astromomers adopt that sensible notation? Now I'm wondering what would Earth be called under the astronomical exoplanet convention, assuming Sol for the star. If...
by Lothario O'Leary
Mon Dec 04, 2017 11:26 pm UTC
Forum: Forum Games
Topic: Can you produce [X] in less than 15 seconds?
Replies: 7710
Views: 746112

Re: Can you produce [X] in less than 15 seconds?

ArguablyDerek wrote:Just a regular one, I'm afraid.

Lukewarm water?
I probably could if I knew what kind of temperature range "lukewarm" is.

A coin (or other item of money) older than you are? (I think I did that one already, but whatever.)
by Lothario O'Leary
Mon Jun 05, 2017 12:07 am UTC
Forum: Forum Games
Topic: Can you produce [X] in less than 15 seconds?
Replies: 7710
Views: 746112

Re: Can you produce [X] in less than 15 seconds?

There are two of them in the dashboard of my car, but I don't have time to go upstairs and grab my keys, so it depends on how hard it is to break a car window. For obvious reasons, I'm not going to try. Something your mother made for you? Do text files my mother typed for me count? If not, well, I ...
by Lothario O'Leary
Sun Jun 04, 2017 11:53 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0903: "Extended Mind"
Replies: 666
Views: 182628

Re: 0903: "Extended Mind"

jewish_scientist wrote:'Wikipedia' actually has a very long long chain that goes through 'Fiber', 'Meaning-Making' and 'E.Coli'.
I wasn't able to get "E.coli", and I ended up stuck in a loop at "logic" (due to an edit war at "argument").
by Lothario O'Leary
Mon Apr 17, 2017 8:17 pm UTC
Forum: Forum Games
Topic: Can you produce [X] in less than 15 seconds?
Replies: 7710
Views: 746112

Re: Can you produce [X] in less than 15 seconds?

Probably. Lots of old copper coins lying around.

A coin over 100 years old?
by Lothario O'Leary
Mon Apr 17, 2017 8:10 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1825: "7 Eleven"
Replies: 85
Views: 23988

Re: 1825: "7 Eleven"

Obligatory: http://i.imgur.com/PIVlfAt.jpg ...I guess they may be working on this version of a day. Somewhat more on-topic... a few months ago I've actually seen a bunch of people told to walk out of a 24-hour store on 23:40 or so (just after we were lucky enough to finish packing our own groceries)...
by Lothario O'Leary
Thu Dec 29, 2016 7:52 am UTC
Forum: Mathematics
Topic: Combinatoric commanders
Replies: 6
Views: 2838

Re: Combinatoric commanders

I tried to do it by listing the possible cases, but it's really complicated. I'd try a program, but I'm not that good of a programmer.
It looks like the answer is somewhere around 20000, however.
by Lothario O'Leary
Wed Dec 21, 2016 12:58 am UTC
Forum: Mathematics
Topic: What's your favourite irrational number?
Replies: 78
Views: 22220

Re: What's your favourite irrational number?

this might be a good place to ask, as it has something to do with irrational numbers. what do you call a type of irrational number that can be 'defined'? for example, 0.101001000100001... the number of zeroes increase every iteration. this sequence certainly do not repeat, but it is very easy to pr...
by Lothario O'Leary
Tue Dec 20, 2016 4:03 am UTC
Forum: Mathematics
Topic: What's your favourite irrational number?
Replies: 78
Views: 22220

Re: What's your favourite irrational number?

My current favorite is sqrt(9 3/4), which is basically the proven-irrational version of e^pi-pi.
(Check out the first 20 digits or so. No, I still have no idea why it behaves that way.)
by Lothario O'Leary
Mon Dec 19, 2016 11:45 pm UTC
Forum: Forum Games
Topic: Can you produce [X] in less than 15 seconds?
Replies: 7710
Views: 746112

Re: Can you produce [X] in less than 15 seconds?

None that I know of, but I do have vinyl singles.

A dictophone (dictation machine)?
General-purpose computers and phones don't count, obviously (otherwise it's too easy).
by Lothario O'Leary
Mon Jul 18, 2016 12:04 pm UTC
Forum: General
Topic: Sleep-time holodeck experiences
Replies: 3404
Views: 766497

Re: What were your dreams last night?

As I've gotten older, I have noticed that I more often have some sort of cognizance while dreaming. Not necessarily an awareness that I'm asleep and dreaming; that rarely happens and if it does I tend to awake almost immediately (although rarely it leads to sleep paralysis). By cognizance, I mean t...
by Lothario O'Leary
Thu Jun 02, 2016 2:28 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1688: Map Age Guide
Replies: 70
Views: 14329

Re: 1688: Map Age Guide

:( Does not have option for Byzantium at the start. Yeah, I initially assumed that the "Neither" option must be for Byzantium and was then surprised when it lead to relatively modern dates. What else, besides Byzantium, Constantinople, and Istanbul, has there been there? Kostantiniyye. St...
by Lothario O'Leary
Mon May 30, 2016 3:01 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1687: "World War III+"
Replies: 34
Views: 8195

Re: 1387: "World War III+"

Uncyclopedia used to have articles on every single World War from III to XXI. Got rid of most of them (as well as most of the rest of its "history" stuff) sometime in the late 2000s, unfortunately. EDIT: I wonder if you could conceivably build a trebuchet with intercontinental range. Sound...
by Lothario O'Leary
Mon May 30, 2016 2:37 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1686: "Feel Old"
Replies: 42
Views: 9060

Re: 1686: "Feel Old"

"Where were you when the wall came down?" "Probably at school because I was nine and that was a Thursday." Change Thursday to Tuesday and you get my situation with 9/11. (Though actually I must've been sleeping in bed, because from my timezone the whole thing happened in the mid...
by Lothario O'Leary
Thu Apr 28, 2016 4:42 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1672: "Women on 20s"
Replies: 218
Views: 39071

Re: 1672: "Women on 20s"

Depends how deep you're willing to go into things to find historic figures - historically, roughly 50% of people were women, and they all did stuff too... Stuff that got them recognized as very influential at the time? I mean, any country's history is going to have well enough major female figures ...
by Lothario O'Leary
Tue Apr 12, 2016 5:44 pm UTC
Forum: What If?
Topic: What-If 0149: "Pizza Bird"
Replies: 57
Views: 30204

Re: What-If 0149: "Pizza Bird"

So, apparently, as long as you use something sturdier than a swallow, it is a question of airspeed velocity.

*waits for the punsaw*
by Lothario O'Leary
Tue Apr 12, 2016 5:41 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1665: "City Talk Pages"
Replies: 75
Views: 14462

Re: 1665: "City Talk Pages"

1. Is the city actually 15% Muslim? 2. Sources, clarification on complete destruction by fire 3. The history article is very brief 5. Is this actually the largest inland city? 6. I clicked on a red link, did not find an article, is that normal? Moscow, Russia. I was just checking out the English WP...
by Lothario O'Leary
Fri Apr 08, 2016 9:13 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1665: "City Talk Pages"
Replies: 75
Views: 14462

Re: 1665: "City Talk Pages"

I thought that mine would be long, but there's so much archived that it's actually extremely short: 1. Is the city actually 15% Muslim? 2. Sources, clarification on complete destruction by fire 3. The history article is very brief 5. Is this actually the largest inland city? 6. I clicked on a red li...
by Lothario O'Leary
Sat Feb 06, 2016 3:35 pm UTC
Forum: Mathematics
Topic: Coin flip problem
Replies: 6
Views: 1847

Re: Coin flip problem

This seems to be a different formulation of what is well known as either the drunkard's walk problem or the gambler's ruin problem (it's a bit easier to understand why the latter - consider a gambler who starts off with m dollars and bets 1 dollar on tails on each flip). I wasn't able to find a nice...
by Lothario O'Leary
Sat Feb 06, 2016 6:58 am UTC
Forum: Mathematics
Topic: Math: Fleeting Thoughts
Replies: 434
Views: 152378

Re: Math: Fleeting Thoughts

@ PM2Ring: Thanks! And you are right that it was Gauss who found the sum over the first 100 integers at the age of six, but: His point was to one-up the legend of Euler's youth and show how you could sum up the first hundred tenth powers in under a minute by hand. That is a different story, and I'm...
by Lothario O'Leary
Sat Feb 06, 2016 2:26 am UTC
Forum: Mathematics
Topic: Greatest Mathematician of all time?
Replies: 65
Views: 19620

Re: Greatest Mathematician of all time?

Greatest by work actually achieved/done or by talent/potential? I nominate Galois as the greatest Mathematician measured by talent. Would you even know Gauss or Euler had they been shot at the age of 20? This (though Niels Abel, who survived a bit longer but also died very young, is a very close se...
by Lothario O'Leary
Fri Feb 05, 2016 11:37 pm UTC
Forum: Mathematics
Topic: Trying to divide a spherical shell into equal-volume "wedges
Replies: 4
Views: 3853

Re: Trying to divide a spherical shell into equal-volume "we

IIRC, if you divide the diameter of a sphere into N equal parts, and cut the sphere perpendicular to it, the resulting slices will surprisingly have equal area (the long ones will be thin, and the short ones will be wide, and it happens to compensate exactly). Then you can join up a few neighboring ...
by Lothario O'Leary
Fri Feb 05, 2016 11:21 pm UTC
Forum: Mathematics
Topic: Favorite Fractals?
Replies: 7
Views: 3225

Re: Favorite Fractals?

I've always been partial to the dragon curve. This, and the Levy C curve (which is similar in idea but very different in result). I agree that the Sierpinski triangle is easy to draw (though, to be fair, I don't recall ever actually trying). My Koch snowflakes always end up bunched up on one side. ...

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