Is the performance limitation you mention about the number of wireless connections, or the processing power?
I tried several such devices with the intention of prototyping my own software, but either their CPUs were underpowered or they were unreliable. I got Debian on a GK802 for instance, installed in the internal SD-card so leaving the external slot free, with a USB WiFi dongle in addition to the internal WiFi so that it could work as a gateway to certain web content while serving its own applications. The problem I had was that it did not boot reliably, maybe because the file system got corrupted occasionally when powering off: it does not have a power button. Another limitation is the number of simultaneous connections, which was not important for me in the prototype phase.
It used a separate WiFi chip from Marvell that supported up to 60 simultaneous connections, with applications running on NodeJS on what seems to be a standard Debian system. I haven't heard about them in a while and suspect they just abandoned the project: http://www.smileconsortium.org...
Is there some way I could follow your project? I'm very interested in the subject, specially in the difficulties and needs found in actual use. You can find my e-mail address at my website: http://sentido-labs.com/en/abo...
On the left, select "script.js", type something like alert("hello") then click the Run button at the top. Template projects using jQuery, Angular and Bootstrap are available in the green "New" button dropdown; they are not limited to basic Javascript. If they want to download their creation, use the button at the top right (next to the blue GitHub button): "Download your Plunk as a zip file"
You could use that to show newcomers to the club that they can write and run programs with just a browser and internet access, then organize other activities based on their feedback.
There you can apply different tests to the student's answer, and one common use was to first check for the exact correct form, like "1/2", with a "syntactical" comparison of the expression tree parsed from the textual input. You would get the "Correct!" feedback for that one. Then you could compare it "semantically" with the expected answer, which sent the expression to a Computer Algebra System for simplification in a specific context (set of simplification rules, depending on the task), so if you answered "2/4" you would get the feedback "That's correct, but not fully simplified. Please give the irreducible form.". The exercise author can include any number of such classifier expressions to catch different forms of the correct answer, different half-done answers, and wrong answers, giving adequate feedback for each. Feedback is not just text, but a complete "exercise subgraph" that could be entire sub-exercises intended to correct the misconception corresponding to the wrong answer given by the student.
There was an article on The Register some months ago on ARM development history (can't seem to find it now), and if it's to be believed they were investigating a series of mysterious crashes in the prototype ARM CPU, and in debugging they found the power on their dev kit wasn't actually connected to the chip - it was running entirely on leakage current and if there weren't enough 1's going into the chip to provide current, it wouldn't have enough power to run.
That link goes to the point where they aired a short fragment of the movie after interviewing John Cleese and Michael Palin, and then the debate starts.
I guess books could be loaded on the devices, not needing internet access for most functions, but still I'd like to know if you have some take on this.
First select the "classic discussion system (D1)" under "Discussions" in your options (gear icon). Then, in the settings just below the summary pick the "flat" view instead of "nested".
I had no idea that Japan used two different power grid frequencies.
I searched for the reason behind it, and while I could not get any good results from Google, following the leads from the Wikipedia image you linked brought me to the page on "utility frequency" where it says how it happened: http://en.wikipedia.org/wiki/Utility_frequency#Standardization
This originates in the first purchases of generators from AEG in 1895, installed for Tokyo, and General Electric in 1896, installed in Osaka.
AEG being a German company had its generators produce at 50 Hz, while the USA General Electric delivered 60 Hz.
What some professors do now at the University of Saarland (Germany) is to define three zones. If you want to use the laptop for taking notes in class, you sit in the first rows, and if you want to do whatever else you sit in the last rows way back. In the middle there is a DMZ without laptops at all.
The idea is to avoid getting distracted by flashy graphic stuff happening before you when you want to pay attention.
More or less: in Spanish, "libertad" means "freedom". The word for the adjective "free" is indeed "libre", like in French. In Italian "freedom" is "libertà", and "free" varies with grammatical gender and number: masculine singular is "libero", while femenine is "libera", and plural is "liberi". (Well, while I'm at it, in Spanish the plural form is "libres", and I guess in French it might be the same)
Your grocery store CCTV analogy to network packet inspection would be more accurate if the store demanded to put cameras in your home, not just in their premises.
The in-store measures you mention are analogous to inspecting the packets my computer interchanges with their servers and limiting the amount of concurrent users, which they can do without bugging my communications with other people.
(I realize that you say that "society in general" might not care about it anyway, not necessarily that you would agree with it.)
Before the Hanzi Chinese CCTLDs were approved by ICANN, when the only way to use them was to install CNNIC's "Official Client-end CDN Software" in your computer, the registration of a.cn domain name with Chinese characters automatically gave you the version with the Hanzi Chinese CCTLD.
The first thing I did when reading these news was to visit their website and look for a license, until I found the copyright notice you mention. Epic fail indeed. I wanted to do some processing of this content. As it is, it's no more useful for me than functions.wolfram.com, which might or might not have less content but is nicer looking anyway.
As I saw OpenMath in your post I got curious about you and clicked on your homepage link, but it says "This Account Has Been Suspended Please contact the billing/support department as soon as possible.".
The first link (geoffreylandis.com) is written by a NASA employee.
While it seems that nobody was actually decompressed on purpose (a couple of accidents are mentioned), a bit down the search results there is a link to a NASA publication called "THE EFFECT ON THE CHIMPANZEE OF RAPID DECOMPRESSION TO A NEAR VACUUM".
You can get a MIPS-based desktop system with 72 processors that consumes 300 Watts, from SyCortex. They call it their Deskside Development System for their bigger parallel computers, and they say it does have a fast backbone bus.
It does run Linux, but at $23,695.00 (48 GB RAM) it's not, I suspect, what you were asking for. I would also like some cheap barebones I could just go on populating with CPUs as I wanted.
The GP might like SGI's Molecule better though, it being Atom-based: 5000 chips, that's 10000 cores, in 3U size. But this one is only a concept computer.
If you mean the experiment at Dan Lathrop's Nonlinear Dynamics Lab, they are doing succesive experiments with bigger and bigger spheres. Last was with a 60cm one, and now they are working on the 3m version which is the one with 13.5 tons of sodium as you mention. According to their webpage:
The three meter experiment now spins under motor control--watch our YouTube movie! We are debugging the system with water as a test fluid, and will soon make Lagrangian flow measurements in collaboration with colleagues from the group of J. F. Pinton. Sodium experiments will follow. More...
Some time ago I used Aquamacs for a while, although nowadays I use standard Emacs again, but I know that I had no trouble having my own color scheme, which happened to be similar to Zenburn, working fine in it, so your post made me curious about what could be the issue.
The first problem is that Zenburn requires Color-theme, which is not included by default. Since you don't give details about what doesn't work, I'm not sure whether you are already past this point.
There seems to be some bug somewhere, because the recommended "(color-theme-initialize)" does not work, as noted in the Emacs Wiki page about Color-theme. However, if instead of setting the load path and using require I load the files directly, the initialization is not needed:
Actually, it seems that you do not need any specific steps for making it work with Aquamacs, but rather that the documentation in "zenburn.el" and "color-theme.el" is atrociously incomplete. Additionally, the web page for Color-theme does not work, which is why I linked to the Emacs Wiki page instead.
I still get some weird error about "aquamacs-customization-version-id", but I have other things to do. You can work on your own from here.
Slashdot Mirror
Is the performance limitation you mention about the number of wireless connections, or the processing power?
I tried several such devices with the intention of prototyping my own software, but either their CPUs were underpowered or they were unreliable. I got Debian on a GK802 for instance, installed in the internal SD-card so leaving the external slot free, with a USB WiFi dongle in addition to the internal WiFi so that it could work as a gateway to certain web content while serving its own applications. The problem I had was that it did not boot reliably, maybe because the file system got corrupted occasionally when powering off: it does not have a power button.
Another limitation is the number of simultaneous connections, which was not important for me in the prototype phase.
At the time there was a device developed for that usage, serving a whole classroom, called the SMILEplug:
http://www.cnx-software.com/20...
https://www.globalscaletechnol...
It used a separate WiFi chip from Marvell that supported up to 60 simultaneous connections, with applications running on NodeJS on what seems to be a standard Debian system.
I haven't heard about them in a while and suspect they just abandoned the project: http://www.smileconsortium.org...
Is there some way I could follow your project?
I'm very interested in the subject, specially in the difficulties and needs found in actual use.
You can find my e-mail address at my website: http://sentido-labs.com/en/abo...
The CGI reconstruction of the collapse is at around 7:22 in that video:
https://www.youtube.com/watch?...
Calm down, it's just missing a comma:
"Hit there, targets!"
In Soviet Russia, targets hit you!
What about Plunker?
You can point people directly at their online editor, ready to write and run Javascript applications:
http://plnkr.co/edit/
On the left, select "script.js", type something like alert("hello") then click the Run button at the top. Template projects using jQuery, Angular and Bootstrap are available in the green "New" button dropdown; they are not limited to basic Javascript.
If they want to download their creation, use the button at the top right (next to the blue GitHub button): "Download your Plunk as a zip file"
You could use that to show newcomers to the club that they can write and run programs with just a browser and internet access, then organize other activities based on their feedback.
Is it the Algebra module for Moode? http://docs.moodle.org/24/en/question/type/algebra, https://tracker.moodle.org/browse/CONTRIB/component/10326, https://moodle.org/mod/forum/discuss.php?d=98670
I worked nine years on such a system, called "ActiveMath" http://activemath.org/ then and now "Math-Bridge" http://math-bridge.org/, where I designed and implemented precisely the exercise system that does the answer evaluation: http://matracas.org/escritos/#exercise_system_report
There you can apply different tests to the student's answer, and one common use was to first check for the exact correct form, like "1/2", with a "syntactical" comparison of the expression tree parsed from the textual input. You would get the "Correct!" feedback for that one.
Then you could compare it "semantically" with the expected answer, which sent the expression to a Computer Algebra System for simplification in a specific context (set of simplification rules, depending on the task), so if you answered "2/4" you would get the feedback "That's correct, but not fully simplified. Please give the irreducible form.".
The exercise author can include any number of such classifier expressions to catch different forms of the correct answer, different half-done answers, and wrong answers, giving adequate feedback for each.
Feedback is not just text, but a complete "exercise subgraph" that could be entire sub-exercises intended to correct the misconception corresponding to the wrong answer given by the student.
I think you mean this article, "ARM creators Sophie Wilson and Steve Furber Part Two: the accidental chip":
http://www.reghardware.com/2012/05/03/unsung_heroes_of_tech_arm_creators_sophie_wilson_and_steve_furber/
I saw the video of that debate recently. Here it is: http://www.youtube.com/watch?v=Ku3GcPrW9xg&t=0m52s
That link goes to the point where they aired a short fragment of the movie after interviewing John Cleese and Michael Palin, and then the debate starts.
What do you think of that initiative in the US to have all textbooks be digital in five years?
http://www.appleinsider.com/articles/12/03/30/apple_others_challenged_to_make_digital_textbooks_a_reality_in_five_years.html
I guess books could be loaded on the devices, not needing internet access for most functions, but still I'd like to know if you have some take on this.
First select the "classic discussion system (D1)" under "Discussions" in your options (gear icon). Then, in the settings just below the summary pick the "flat" view instead of "nested".
Don't the Japanse bullet trains also touch the rails?
Then I guess you could say that it has jumped the shark.
I had no idea that Japan used two different power grid frequencies.
I searched for the reason behind it, and while I could not get any good results from Google, following the leads from the Wikipedia image you linked brought me to the page on "utility frequency" where it says how it happened:
http://en.wikipedia.org/wiki/Utility_frequency#Standardization
AEG being a German company had its generators produce at 50 Hz, while the USA General Electric delivered 60 Hz.
What some professors do now at the University of Saarland (Germany) is to define three zones.
If you want to use the laptop for taking notes in class, you sit in the first rows, and if you want to do whatever else you sit in the last rows way back.
In the middle there is a DMZ without laptops at all.
The idea is to avoid getting distracted by flashy graphic stuff happening before you when you want to pay attention.
Same here. I disabled the "dynamic" stuff and set the view to "classic" shortly after it was introduced, and today suddenly I have it in my screen.
Looks like a bug.
More or less: in Spanish, "libertad" means "freedom". The word for the adjective "free" is indeed "libre", like in French. In Italian "freedom" is "libertà", and "free" varies with grammatical gender and number: masculine singular is "libero", while femenine is "libera", and plural is "liberi". (Well, while I'm at it, in Spanish the plural form is "libres", and I guess in French it might be the same)
Your grocery store CCTV analogy to network packet inspection would be more accurate if the store demanded to put cameras in your home, not just in their premises.
The in-store measures you mention are analogous to inspecting the packets my computer interchanges with their servers and limiting the amount of concurrent users, which they can do without bugging my communications with other people.
(I realize that you say that "society in general" might not care about it anyway, not necessarily that you would agree with it.)
Before the Hanzi Chinese CCTLDs were approved by ICANN, when the only way to use them was to install CNNIC's "Official Client-end CDN Software" in your computer, the registration of a .cn domain name with Chinese characters automatically gave you the version with the Hanzi Chinese CCTLD.
You can read it here in English: http://cnnic.cn/html/Dir/2005/10/11/3218.htm
It's in the answer to the third question.
I don't have any confirmation, but I don't see why they would change their policy.
I was curious too, and looked for it. I think it might be this one:
http://theoath.files.wordpress.com/2008/09/inflation-1923.jpg
The blog entry where I found it has more context and a couple of other contemporary photos:
http://theoath.wordpress.com/2008/09/13/lehman-bros-employee-its-over-man/
The first thing I did when reading these news was to visit their website and look for a license, until I found the copyright notice you mention. Epic fail indeed. I wanted to do some processing of this content. As it is, it's no more useful for me than functions.wolfram.com, which might or might not have less content but is nicer looking anyway.
As I saw OpenMath in your post I got curious about you and clicked on your homepage link, but it says "This Account Has Been Suspended
Please contact the billing/support department as soon as possible.".
I found quite precise information by searching for [nasa decompression lungs mouth test]:
http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=nasa+decompression+lungs+mouth+test
The first link (geoffreylandis.com) is written by a NASA employee.
While it seems that nobody was actually decompressed on purpose (a couple of accidents are mentioned), a bit down the search results there is a link to a NASA publication called "THE EFFECT ON THE CHIMPANZEE OF RAPID DECOMPRESSION TO A NEAR VACUUM".
You might prefer to use do...while instead, to avoid the chance of unintended looping:
do
{
if (!start_condition) break;
action1();
cleanup1();
if (!test_condition1) break;
action2();
cleanup2();
if (!test_condition2) break;
} while(0);
You can get a MIPS-based desktop system with 72 processors that consumes 300 Watts, from SyCortex. They call it their Deskside Development System for their bigger parallel computers, and they say it does have a fast backbone bus.
It does run Linux, but at $23,695.00 (48 GB RAM) it's not, I suspect, what you were asking for. I would also like some cheap barebones I could just go on populating with CPUs as I wanted.
The GP might like SGI's Molecule better though, it being Atom-based: 5000 chips, that's 10000 cores, in 3U size. But this one is only a concept computer.
If you mean the experiment at Dan Lathrop's Nonlinear Dynamics Lab, they are doing succesive experiments with bigger and bigger spheres. Last was with a 60cm one, and now they are working on the 3m version which is the one with 13.5 tons of sodium as you mention. According to their webpage:
There is an article about them from 2008 at Universe Today, and also other people in France were doing spinning sodium experiments in 2007.
I've just tried to make Zenburn with Aquamacs, and I've documented the steps with which I got it working in a reply to a reply, in comment #24064921.
Do you get notified when someone replies in the same thread but not directly to your post?
Some time ago I used Aquamacs for a while, although nowadays I use standard Emacs again, but I know that I had no trouble having my own color scheme, which happened to be similar to Zenburn, working fine in it, so your post made me curious about what could be the issue.
The first problem is that Zenburn requires Color-theme, which is not included by default. Since you don't give details about what doesn't work, I'm not sure whether you are already past this point.
Anyway, this is what I did to try it out:
Now you need to load them in your ".emacs" or equivalent: Aquamacs' recommended file is "~/Library/Preferences/Aquamacs Emacs/Preferences.el":
There seems to be some bug somewhere, because the recommended "(color-theme-initialize)" does not work, as noted in the Emacs Wiki page about Color-theme. However, if instead of setting the load path and using require I load the files directly, the initialization is not needed:
Actually, it seems that you do not need any specific steps for making it work with Aquamacs, but rather that the documentation in "zenburn.el" and "color-theme.el" is atrociously incomplete. Additionally, the web page for Color-theme does not work, which is why I linked to the Emacs Wiki page instead.
I still get some weird error about "aquamacs-customization-version-id", but I have other things to do. You can work on your own from here.