:fa_youtube_play: Cool Computing Videos
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No, that was just pennantry.
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I wanted to go all pedantic dickweed about how that is a turtle, not a tortoise.
However, I went to check my facts first, and I had it backwards.
Stupid facts.
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I wanted to go all pedantic dickweed about how that is a turtle, not a tortoise.
No it's not, it's a turquoise!
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Should we file a bug?
:turtle:
renders as a tortoise...
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By Linnaeus, you're right!
We do need to report this! The gods of pedantic dickweedery must be satisfied!
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We do need to report this! The gods of pedantic dickweedery must be satisfied!
What, you want it should be a frog or something‽ Keep quiet!
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What, you want it should be a frog or something‽
I think you accidentally the sentence.
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I'm with @aliceif on this one; those nails are definitely turquoise. Or jade. One of those two.
I would say closer to turquoise, but a rather poor grade of it. Ideally, turquoise should be a light blue without any, or only the slightest hint of, green.
Although jade comes in a variety of colors —
— the ideal color for green jade is pure green.Hue (zheng): Top-quality jadeite is pure green. While its hue position is usually slightly more yellow than that of fine emerald and it never quite reaches the same intensity of color, the ideal for jadeite is a fine “emerald” green. No brown or gray modifiers should be present in the finished piece.
http://www.palagems.com/Images/jade_burma_images/jade_GandG_17.jpgHowever, the hues can run toward the bluish-side of pure green, especially in the lighter shades, and can come very close to the color of that nail polish.
For some reason that completely escapes me, artists and designers insist on using "jade" to describe colors that, although jade may occur in those colors, are definitely highly atypical of jade. In fact, GIS for "jade color" returns results that are almost entirely not the colors of actual jade.
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I would say closer to turquoise, but a rather poor grade of it. Ideally, turquoise should be a light blue without any, or only the slightest hint of, green.
As someone who lived for three years only 25 miles from Bisbee, Arizona, the indicator of "poor grade" in turquoise is not color, but consistency. The cheap rubbish is all one shade of light blue with a touch of green (the really cheap stuff is actually not turquoise but chrysocolla); good turquoise has a highly mottled "matrix".
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"Reliable sources" disagree:
gemstone.org:
The best quality turquoises are of a pure, radiant sky blue, a colour which is highly esteemed with or without its fine, regular matrix. The more strongly the colour tends toward green and the more blotchy and more irregular the matrix, the lower the estimate of the stone's quality.
geology.com:
The most desirable color of turquoise is a sky blue or robin's egg blue....After blue, blue-green stones are preferred, with yellowish green material being less desirable....
Some turquoise contains inclusions of its host rock (known as matrix) that appear as black or brown spider-webbing or patches within the material. Many cutters try to produce stones that exclude the matrix but sometimes it is so uniformly or finely distributed through the stone that it cannot be avoided. Some people who purchase turquoise jewelry enjoy seeing the matrix within the stone, but as a general rule, turquoise with heavy matrix is less desirable.
Some turquoise localities produce material with a characteristic color and appearance. For example, the Sleeping Beauty Mine is known for its light blue turquoise without matrix. Much of the turquoise from the Kingman Mine is bright blue with a spider web of black matrix. The Morenci Mine produces a lot of dark blue turquoise with pyrite in the matrix. Much of the Bisbee turquoise has a bright blue color with a chocolate brown matrix. People who know turquoise can often, but not always, correctly associate a stone with a specific mine.
minerals.net
Turquoise can come in different shades of blue or green, and is commonly veined or mottled with brown or black oxides or a sandstone base. Some prefer this color veining, while others prefer a solid-colored stone. The best color in Turquoise is a solid, deep turquoise-blue hue. Greenish colors are less desirable and are not usually used as gemstones.
gemsociety.org:
Historically, and to a large extent today, the most admired stones are those of a fine robin's egg, or celestial blue color, with no visible matrixThis one probably comes closer than any other I found to agreeing with you:
Turquoise Skys:
Collectors of Native American jewelry love the variations of turquoise matrix. Native American jewelry collectors have extremely high valuations for stones with particular patterns such as one called the spider web pattern. Other collectors are on the complete other end of the spectrum and value turquoise for its purity free from having matrix veins.
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Some people who purchase turquoise jewelry enjoy seeing the matrix within the stone, but as a general rule, turquoise with heavy matrix is less desirable.
Some people also prefer watermelon without seeds (i.e, without flavor).
And some people think chickens have lips.
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How would [chickens] whistle without them, eh?
They can't, or MYCROFT's joke ("why is a laser beam like a goldfish? Because neither one can whistle!") wouldn't work.
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Guy makes a cool AI that plays old NES games.
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Linked/suggested from that one…
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http://gensho.acc.umu.se/pub/debian-meetings/2014/debconf14/webm/QA_with_Linus_Torvalds.webm
Interesting Linus Torvalds Q&A. Highlights: rant on linux packaging, what do you think about systemd and the usual, why are you such a meany?
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https://www.youtube.com/watch?v=U4oB28ksiIo
Hacker guy tracks down his stolen computer.
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Docker in production. Guy gives a dispassionate analysis of the problems they encountered.
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https://www.youtube.com/watch?v=MCs5OvhV9S4
Guy hacks together a TCP server and co-routines in python. During a live session. In half an hour. Using fucking nano.
Impressive.
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Always a classic, very short video:
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If you can't find the root cause of an exit crash, just hack it to say thanks for playing.
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Not a video, but still funny.
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Emacs, not nano.
And what the fuck.
- Why the fuck are threads so weird in Python? How can you fucking do that so wrong!
- Why the fuck are allegedly professional programmers still being told how to use threads?
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1) Why the fuck are threads so weird in Python? How can you fucking do that so wrong!
https://www.youtube.com/watch?v=Obt-vMVdM8s
TLDR: All python threads are automatically synchronized, so you basically lose 99% of their purpose. Also, there are bugs in this locking implementation.
Why? The same reason node/javascript did it. It's easier to program without having to worry about race conditions and deadlocks.
2) Why the fuck are allegedly professional programmers still being told how to use threads?
Whatever fancy concurrency mechanism you use, threads are somewhere underneath it all.
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Well there went any desire to learn Node.
Seriously. That kind of thing (sacrificing any hope at meaningful parallelism on the altar of making it so uneducated numpties can 'hack' things together quickly without fully understanding what they're doing) limits the language to being used for toys.
Of course, there's a huge market for toys these days.
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Well there went any desire to learn Node.
Seriously. That kind of thing (sacrificing any hope at meaningful parallelism on the altar of making it so uneducated numpties can 'hack' things together quickly without fully understanding what they're doing) limits the language to being used for toys.
Of course, there's a huge market for toys these days.
If you want to do cpu-bound calculations, node is not the best solution. For IO-bound stuff, on the other hand, it's pretty sweet. The downsides of having no true parallelism are minimized (you get all the work done while waiting for the IO), while upsides can really start to shine.
With python, it seems they screwed up this implementation, so you get poor performance even when doing the IO stuff.
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Whatever fancy concurrency mechanism you use, threads are somewhere underneath it all.
There are other ways, especially if you're only doing cooperative multitasking.
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Whatever fancy concurrency mechanism you use, threads are somewhere underneath it all.
(Not sure what your definition of "fancy" is. But.)
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Limited slip differentials (which are far better for things like getting out of mud as they won't let one wheel stay stationary and one wheel spin like crazy) are a lot harder to explain how they work!
Torque biased differentials are based on gears locking up when over a threshold angle, so they really do look like they run on magic, but they're not very common. Most consumer limited slip diffs are viscous type, which just puts one shaft in weak contact with the other, causing them to pull each other. That's pretty darn simple, especially if you hold it in your hand, because it's actually really hard to turn one shaft without turning the other. Clutch based diffs are even easier to comprehend, but they are almost exclusively used for racing.
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Why does the background of that image turn blue when I am scrolling, being gray otherwise?
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Your shit's all broken?
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If I scroll with the mouse wheel, it's fine, but if I drag the scrollbar...it flickers red!?
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It flickers blue for all scroll mechanisms for me.
DISCOURSE! @discoursebot!
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@PleegWat - Last Day Without A Discourse Bug: null
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Why does the background of that image turn blue when I am scrolling, being gray otherwise?
NOREPRO.
If I scroll with the mouse wheel, it's fine, but if I drag the scrollbar...it flickers red!?
NOREPRO.
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Firefox 41.0.2, Windows 10.
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Firefox 41.0.2, Windows 10.
Chrome 46.0.2.whatever, OSX originally.
Tried it on Firefox 41.0.2, OSX and the grey seems to flicker slightly but it remains grey.
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It's not a browser bug or Discourse bug, it's a graphical thing with the pattern in the desktop background. It's an optical illusion.
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It's not a browser bug
Well I see slight flickering on Firefox and no flickering on Chrome, so... the browser is related somewhere.
It's an optical illusion.
I still don't see it, so NOREPRO still applies.
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The browser controls the scroll speed. I'm experiencing it in Chrome when dragging the scroll bar, though.
Try this: screenshot it and paste it into paint, select the background, and press and hold an arrow key. Instant red flickering for me. The color depends on your screen and eyeballs.
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OSX doesn't have Paint.
Try Preview. It's annotation tools can do about what you want if necessary.
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Try Preview. It's annotation tools can do about what you want if necessary.
I did. Preview doesn't do shit when I
press and hold an arrow key.
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Oh, I'm sorry. I misread. Preview doesn't suck, so no, it's not a replacement…
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It seems that OSX doesn't generally suck enough to reproduce whatever was reported above.
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He's probably scaled at something other than 100% and it's doing some subpixel bullshit.
The background "texture" if you even call it that is a checkerboard of black and white pixels. MacOS used that into the OS X era as a kind of a trademark, even though that OS in the screenshot is obviously running on 256 (or more) color hardware.
The real point is: no you don't need threads to multitask (in the traditional sense of doing two tasks at once). All you need is an interrupt you can set on a timer and OS engineers who aren't wholly incompetent. Even 1984 MacOS version 1.0 could multitask on "state of the art" 68000 hardware (via Desk Accessory apps.)