2014-05-26 00:00 <DocScrutinizer05> but soab and hydrocarbon tends to act funny
2014-05-26 00:00 <DocScrutinizer05> soap*
2014-05-26 00:00 <whitequark> esbit... is it the same thing called "solid alcohol" here?
2014-05-26 00:00 <DocScrutinizer05> prolly
2014-05-26 00:00 <whitequark> I don't quite remember what is it composed of, but surely not alcohol or soap
2014-05-26 00:00 <DocScrutinizer05> http://en.wikipedia.org/wiki/Hexamine_fuel_tablet
2014-05-26 00:00 <whitequark> I know you can make hexagen out of it
2014-05-26 00:01 <whitequark> right
2014-05-26 00:02 <whitequark> a guy I know once cooked RDX out of hexamine right at his kitchen. It burned up pretty impressively
2014-05-26 00:02 <DocScrutinizer05> http://de.wikipedia.org/wiki/Trockenspiritus
2014-05-26 00:03 <whitequark> right! "Dry alcohol" is literally how it's called in RU
2014-05-26 00:03 <whitequark> imported term from East Germany?
2014-05-26 00:04 <DocScrutinizer05> anyway Esbit is prolly a red herring here, rather search for soap and terpentine for example
2014-05-26 00:05 <whitequark> one of first links in Google by that query: "Topic: Turpentine - Page 1, Enemas specially for sexual pleasure..."
2014-05-26 00:05 <whitequark> O_O
2014-05-26 00:05 <DocScrutinizer05> soap molecule has a water end and a err fat end
2014-05-26 00:05 <DocScrutinizer05> the hydrocarbon reacts with the fat end
2014-05-26 00:05 <whitequark> DocScrutinizer05: polar and nonpolar end is how it's called in English afaik
2014-05-26 00:05 <DocScrutinizer05> dunno about ethanol
2014-05-26 00:05 <whitequark> and yeah, I know how surfactants work :p
2014-05-26 00:05 <whitequark> ethanol is highly polar
2014-05-26 00:06 <DocScrutinizer05> yeah, missyed the word
2014-05-26 00:06 <DocScrutinizer05> alcohol is not exactly non-polar, is it?
2014-05-26 00:06 <whitequark> it's a really tiny molecule, so there's no place to have a nonpolar end
2014-05-26 00:06 <whitequark> basically, to my understanding, soap+alcohol ~ soap+water
2014-05-26 00:07 <whitequark> the *physics* of mixing will be different for sure, the chemistry prolly not
2014-05-26 00:07 <DocScrutinizer05> well, then maybe try all three together ;-)
2014-05-26 00:07 <DocScrutinizer05> mybe you invent something completely new
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2014-05-26 00:08 <whitequark> http://www.bearchele.com/soap/Tutorial.html
2014-05-26 00:08 <whitequark> apparently soap and alcohol are explicitly mixed to make transparent soap
2014-05-26 00:09 <DocScrutinizer05> yeah, sounds like one of the weird unexpected effects I referred to
2014-05-26 00:09 <whitequark> though it's also has glycerin and is heated there, which prolly leads to some reaction, unsure which
2014-05-26 00:09 <whitequark> without heating nothing would happen I think
2014-05-26 00:09 <whitequark> there's also sugar...
2014-05-26 00:10 <DocScrutinizer05> oh yeah, sugar, the unknown alcohol
2014-05-26 00:11 <DocScrutinizer05> (sorry, never been too bright in chemistry)
2014-05-26 00:13 <whitequark> DocScrutinizer05: remember that weird gif? that weird pattern is actually a fractal
2014-05-26 00:13 <whitequark> you could zoom in into it forever
2014-05-26 00:13 <DocScrutinizer05> actually sweetening your cooling water might also have some interesting effect on the quality of the cut
2014-05-26 00:13 <whitequark> yes, and it would also make everything sticky, and attract tons of flies
2014-05-26 00:14 <DocScrutinizer05> hehehe, definitely
2014-05-26 00:14 <whitequark> the evening of abridged advice at #qi-hw
2014-05-26 00:14 <DocScrutinizer05> though pure sugar is odorless and thus doesn't attract flies
2014-05-26 00:14 <whitequark> hm
2014-05-26 00:14 <whitequark> okay, wasps
2014-05-26 00:14 <whitequark> they seem to communicate the presence of sugar or something
2014-05-26 00:15 <whitequark> although I haven't seen any in moscow for a long time
2014-05-26 00:15 <DocScrutinizer05> yes, definitely. Like bees. But they also need to "find" the sugar or smell something "sweet"
2014-05-26 00:16 <DocScrutinizer05> and wasps are even more interested in meat than in sugar
2014-05-26 00:16 <DocScrutinizer05> proteine
2014-05-26 00:17 <DocScrutinizer05> ok, they love cake as well
2014-05-26 00:17 <DocScrutinizer05> definitely I never seen them eating pure sugar, even when available
2014-05-26 00:18 <DocScrutinizer05> fruits yes
2014-05-26 00:18 <whitequark> I have, they love watermelons to the point of drowning in them in thousands
2014-05-26 00:18 <whitequark> and it's basically pure sugar
2014-05-26 00:18 <whitequark> <pedantic>watermelons aren't fruits, they're berries</pedantic>
2014-05-26 00:18 <DocScrutinizer05> it's not, it has lots of aroma and water
2014-05-26 00:18 <whitequark> oh, you mean like sugar blocks. definitely.
2014-05-26 00:19 <DocScrutinizer05> I guess wasps have no "saliva" to even notice that white crystal is sugar
2014-05-26 00:20 <DocScrutinizer05> for them it's prolly looking and smeling just like sand
2014-05-26 00:21 <whitequark> looking? well... most insects don't rely on sight anyway
2014-05-26 00:21 <DocScrutinizer05> surprisingly few animals seem to be interested in sugar
2014-05-26 00:21 <whitequark> and those who do have such a wide range they could probably work like tiny spectrometer analysis stations
2014-05-26 00:21 <DocScrutinizer05> pure sugar
2014-05-26 00:21 <whitequark> pure sugar doesn't appear in nature, does it?
2014-05-26 00:21 <DocScrutinizer05> exactly
2014-05-26 00:22 <DocScrutinizer05> it's synthetic
2014-05-26 00:22 <whitequark> so then there's no evolutionary pressure
2014-05-26 00:22 <DocScrutinizer05> yep
2014-05-26 00:23 <DocScrutinizer05> once I worked in a caffe. A mouse - during the night - pierced a roundabout 100 of those 10g coffemilk plastic cups with alu lid. The mouse didn't touch the sugar bags nearby
2014-05-26 00:25 <DocScrutinizer05> but it ate 4 snickers. Not completely of course
2014-05-26 00:26 <DocScrutinizer05> http://shannonwarburton.wordpress.com/shakeology-recipes/snickers-shakeology/
2014-05-26 00:26 <whitequark> that would be one huge mouse
2014-05-26 00:26 <DocScrutinizer05> hehe, indeed
2014-05-26 00:26 <whitequark> not even a big rat would probably manage that
2014-05-26 00:27 <DocScrutinizer05> it must have been too fat to walk even after the volume it ate out of those 4. I guess the mouse must have weighed double after meal
2014-05-26 00:27 * whitequark recalls dissection of some animals, including rats, in uni
2014-05-26 00:28 <whitequark> really, the most remarkable thing about the rat is the size of its balls. they're truly enormous. slightly bigger, and they'd be bigger than mine, and I don't mean scaled up wrt/ body size
2014-05-26 00:28 <DocScrutinizer05> LOL
2014-05-26 00:28 <whitequark> one of the things I best remember from the uni
2014-05-26 00:30 <whitequark> I've asked the professor. apparently, the male rat lives to screw, and for that it needs quite a factory of gametes
2014-05-26 00:30 * DocScrutinizer05 idly glares at a Huawai(?) Q101 3G USB stick
2014-05-26 00:30 <whitequark> Huawei?
2014-05-26 00:31 <DocScrutinizer05> or that, or not
2014-05-26 00:31 <DocScrutinizer05> from TPE
2014-05-26 00:31 <DocScrutinizer05> got it together with a eeePC I bought there
2014-05-26 00:32 <DocScrutinizer05> was an offer on top of the SIM contract I got me. 100EUR or somesuch, for both
2014-05-26 00:33 <DocScrutinizer05> it's the size of a lipstick, a huge one
2014-05-26 00:33 <whitequark> yeah they usually are
2014-05-26 00:43 <DocScrutinizer05> (snickers) I heard several times now that bait for mousetrap best is peanutbutter
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2014-05-26 01:01 <DocScrutinizer05> whitequark: new c't-Hacks has some nice tesla transformers :-)
2014-05-26 01:02 <DocScrutinizer05> one with transformer, capacitors and spark gap. One with electron valve \o/.  And I think one with mosfets?
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2014-05-26 01:59 <wpwrak> (vodka as coolant, plus bubbles) can't wait for the selfies ;-)
2014-05-26 02:03 <wpwrak> (adding sugar) the alcohol will kill the flies ...
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2014-05-26 02:30 <roh> wpwrak: the reason we do not use alcohol is smoking needs to be forbidden in the vicinity of the machine then...
2014-05-26 02:30 * wpwrak wonders whether Josephine Cochrane, inventor of the dishwasher, ever got a prize for extraordinary achievements for humanity
2014-05-26 02:30 <roh> also.. if it would be vodka we would have problems due to people drinking the machines stash
2014-05-26 02:30 <wpwrak> in russia, neither should be much of an issue :)
2014-05-26 03:10 <DocScrutinizer05> I still wonder how a freshly booted system (a few days old) could eat 8GB of RAM, and how processes may have 2, 3 or even 4GB of virtual size :-S  http://wstaw.org/m/2014/05/26/plasma-desktopSQ1787.png
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2014-05-26 06:24 <wpwrak> efficient programming :)
2014-05-26 06:27 <whitequark> DocScrutinizer05: (virtual size) it's very simple, and in fact it actually *is* efficient programming
2014-05-26 06:27 <whitequark> VSZ grows if a process requests the OS to mmap large files
2014-05-26 06:28 <whitequark> on 64bit mmapping large files is the best way to randomly access them, because you get the OS manage the memory for you--for example, it will read the data directly into the allocated pages without any copying, and evict the pages in low (physical) memory conditions, again without the app having to do anything
2014-05-26 06:29 <whitequark> Sublime Text mmaps hundreds of GB, even
2014-05-26 06:29 <whitequark> the page tables and kernel structures consume some amount of physical memory, but it's comparatively miniscule
2014-05-26 06:30 <whitequark> DocScrutinizer05: otoh I really don't know what's wrong with kdeinit on your system. On mine it consumes 21M of RSS
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2014-05-26 11:50 <nicksydney> what's up people ?!
2014-05-26 11:53 <nicksydney> pyra competitor but much cheaper http://www.instructables.com/id/How-to-Make-a-Portable-Game-System/?ALLSTEPS  :)
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2014-05-26 12:30 <DocScrutinizer05> sorry, that's ridiculous but not a "competitor to pyra"
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2014-05-26 15:25 <whitequark> hmm, got some polishing paste, chromium oxide based
2014-05-26 15:26 <whitequark> also made the lens bi-convex by gluing the parts with epoxy
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2014-05-26 16:23 <DocScrutinizer05> pyra is a general purpose palmtop computer optimized for, and running, Linux as OS. It comes with some minor "compromises" regarding HID design to make it more suited for playing games on it (D-pad, ABCD buttons, dunno what else)
2014-05-26 16:27 <wpwrak> whitequark: now you can make your own geek glasses ;-)
2014-05-26 16:27 <whitequark> wpwrak: yeah, thought about it
2014-05-26 16:28 <whitequark> judging by the ones I have, it'd be really hard to properly create the geometry
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2014-05-26 20:25 <pcercuei> larsc: hey, do you have a pump for tires?
2014-05-26 20:27 <whitequark> I made that lens! http://imgur.com/a/3PZai
2014-05-26 20:27 <whitequark> even took a picture through it with my camera. a miracle it focused on *anything*
2014-05-26 20:33 <wpwrak> now you can make a google glass clone with your own lenses ;-)
2014-05-26 20:34 <whitequark> a small step for a man, a big step for creepy open-source hardware?
2014-05-26 20:40 <wpwrak> hint: opencreep.org is still available ;)
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