cyanoacry

10 ms·

31.
by cyanoacry 11y ago
Having programmed in both, I prefer VHDL--the two take different paths, analogous to functional vs imperative programming. The type checking that makes VHDL so annoying is also the same type checking that's saved me. Coming from Haskel
32.
by cyanoacry 11y ago
The cost (in addition to those that other replies have pointed out) is also one of support. While a <10yr old device may support IPv6, it is often that they don't always perform exactly as designed. IPv4 & IPv6 co-existence is a
33.
Decoding the Disneyland Telegraph(hiddenmickeys.org)
2 points by cyanoacry 11y ago|0 comments
34.
How a bad RJ45 termination can ruin a cable(bluejeanscable.com)
113 points by cyanoacry 12y ago|68 comments
35.
by cyanoacry 12y ago
I host a private MoinMoin wiki on my own server, as a place to collect links as well as thoughts. It's a fairly easy setup, and allows you to make sure that you can write down even private thoughts (well, as much as you trust your own
36.
by cyanoacry 12y ago
There were several, but the two that stand out[1]: 1) The payload bay grew in size from 12 ft wide to 15 ft wide, in order to accommodate future unspecified military needs. 2) There were new cross-range requirements specified for reentry.[2
37.
by cyanoacry 12y ago
Six sigma is actually alive and well, and in my experience refers to a well-defined set of methodologies for production efficiency. There are certification bodies that run programs dedicated to it[2]. It might not be necessarily intelligent
38.
Space Shuttle STS-93: We don't need any more of those(waynehale.wordpress.com)
6 points by cyanoacry 12y ago|1 comments
39.
Building a 10BASE5 “Thick Ethernet” Network (2012)(tech.mattmillman.com)
46 points by cyanoacry 12y ago|42 comments
40.
by cyanoacry 12y ago
Self-fluxing enameled wire is great for more than just a simple keyboard project, too---it scales to microcontroller-scale projects, if you have enough patience: http://elm-chan.org/docs/wire/wiring_e.html It&#x27
41.
Inside a Tesla Model S Battery Pack(teslamotorsclub.com)
264 points by cyanoacry 12y ago|77 comments
42.
by cyanoacry 12y ago
This approach works well in only one situation: when your code isn't doing anything substantial in terms of data processing. For me, comments are best used at explaining _why this is happening_, not what is happening. By far one of the
43.
by cyanoacry 12y ago
I'm extremely skeptical of this viewpoint, if only due to the fact that the energies involved in car crashes are an order of magnitude larger than those involved in bike accidents. Intuition says that a car might be traveling (on avera
44.
by cyanoacry 12y ago
GPS comes in two flavors, SPS (standard positioning service, your standard civilian positioning) and PPS (precise positioning service, for the military). The SPS specification[1] says you should expect 95% of reported locations to be within
45.
by cyanoacry 12y ago
Yeah, English isn't his first language, but I thought it was super informational all the while. Original Japanese here: http://elm-chan.org/works/vlp/report.html
46.
by cyanoacry 12y ago
I made a bunch of LCD nametags for a project a while back[1], and ran into the strangest issue. Occasionally, the display would fail to start up and would display an all-blue screen. My initial hunch was that it was a timing issue, and that
47.
Home Built Laser Projector (2004)(elm-chan.org)
44 points by cyanoacry 12y ago|15 comments
48.
by cyanoacry 12y ago
In this case, Japan's move makes sense. The satellites are placed into an orbit so that they can be seen high in the sky, which is impossible to do for all locations on the earth. At some point, you need to break up the augmentation sy
49.
by cyanoacry 12y ago
A really big problem with satellite technology are the harsh environments they go through. You're dealing with something like 10-20g's of vibration peak-to-peak on ascent, and then you subject it to the freezing colds and searing
50.
by cyanoacry 13y ago
Wow, that's neat! Has any of this technology made it out of the lab? It feels like the main limit to mass production of this technology (if people wanted it) is the cryogenics system involved. What other barriers (other than lack of de
51.
by cyanoacry 13y ago
This is absolutely fascinating. I didn't realize that today's nanofab labs used technology that was available in the 1950's (e-beam lithography is pretty common, with a second contender for nano-scale structures being FIB[1]
52.
by cyanoacry 13y ago
This is a bad approach for a couple reasons: 1) The total measurable space/information over a resized icon-size greyscale image is pretty small, so you run into a much higher likelyhood of collisions/false positives. 2) It's
53.
by cyanoacry 13y ago
If you're just starting reading academic papers, I highly suggest delving into background and seminal papers in the field first, because the terminology in contemporary papers is usually pretty precise and depends on already knowing th
54.
by cyanoacry 13y ago
This is definitely true, and the BBC totally omitted these facts. The official NIF announcement[1] tried a little bit to cover their tracks. They posted some flashy numbers about the total energy output from neutrons, but nestled in the bot
55.
by cyanoacry 13y ago
I saw the movie yesterday, and I really don't think it's fair to blame the movie producers for their inaccuracies. The premise is real[1], and much of the rest of the movie is constructed by taking the minimal liberties necessary
56.
by cyanoacry 13y ago
VHDL generics and generate work nicely for 1d cases, but for 2d cases (systolic arrays), it's difficult to make the scripting really work without hard-coding a bunch of corner cases. Another example is that defining barrel shifters is
57.
by cyanoacry 13y ago
By far, most of my time spent in FPGA dev so far has been envisioning the state machines and timing details involved. I use VHDL, so it's never been a question of "how can I make VHDL output what I want?"---for me, it's
58.
by cyanoacry 13y ago
I recently started a job in the aerospace industry, and it's still taking me a little bit of time to get used to the concept of risk, simply because it: 1) is rarely addressed in education (nowhere in sciences nor humanitites) 2)
59.
by cyanoacry 13y ago
I'm a little suspicious of how much of this is press-piece fluff, given that they make the assertion that his algorithm reduces times by 40 minutes, which is 10%. This means that the average waiting time is 400 minutes, or over 6 hours
60.
by cyanoacry 13y ago
The best comments are surrounded by pertinent code. I don't think I've seen a workflow yet that allows you to attach specific portions of commit messages to specific code passages, so it's a little difficult to ensure that wh

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