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/sci/ - Science, Technology, Engineering, and Mathematics

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New Textbook/Book Request Thread deadbabies ## Mod ## 13/08/25(Sun)06:03 No. 15270 ID: f34135 [Reply] Stickied

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First off, hello there, I'm deadbabies, and I will be taking over as /sci/ moderator. Rules will remain the same. Please use the report function if you see posts that violate the rules, but also do not abuse it.

I have officially expanded the scope of /sci/ a bit. You may discuss Science, Technology, Engineering, and Mathematics here now. No science is discriminated against as long as it's of the peer-reviewed variety. If someone wants to discuss Anthropology or Social Science, by all means, let them. If you do not like it, just don't post in the thread.

The IRC channel #/sci/ is now (finally) re-registered and I am running as operator on here. Feel free to stop by and say hi. I do leave my computer idling on IRC, so check back or leave me a message if you have any ideas, suggestions, or just want to tell me off. You can get onto #/sci/ by joining the server irc.7chan.org at port 6667. You can also use SSL at port 6697 but you will have to set your client to accept invalid certificates.

ADDITIONALLY and IMPORTANTLY I have had several requests on IRC regarding the old Ebook FTP that we used to have. Unfortunately, the mod who ran it entered the military and no longer runs or maintains it. I have no plans to make another one, but if one of you guys would like to, by all means advertise here.

That being said, I'm just going to leave this link here:


You may find what you seek here.

I will be unstickying the old ebook/source articles thread. Please post any new ebooks/source articles here, and feel free to post any working links from the old thread there; I will eventually be deleting it.
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The Art of Computer Programming Anonymous 16/06/11(Sat)15:48 No. 16328 ID: b466d6

Hi everyboday!

I am looking for the MRS PDF version of TAoCP 1-4a with Links etc.

Thanks in advance!

start learning about computers Bigattao 16/03/10(Thu)06:19 No. 16297 ID: 00af9a [Reply]

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Hi sci,
I'm a noob about computers and going to do college of Computer Engineering. I don't know even how to start learning. Can somebody give a tip?

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Anonymous 16/06/07(Tue)04:02 No. 16327 ID: 7226ed

The easiest way to start any entirely new field is to study its history and development, and read about the peaple who made it happen. Then you have a grounding and orientation for your technical studies.

Computer Engineering Student 16/07/03(Sun)12:42 No. 16335 ID: 6ce999

Hi, I'm in my 4th year as a Computer Engineering Student and is finishing up the prototype for my Computer Engineering Degree Thesis Project.

As you are taking the same program as I am, I would warn you that Computer Engineering is not the course you want if you want to be in Game Development, Android Application Development or Artificial Intelligence. Those will not be taught in school as a course, but you could certainly enter that field when you want to.

Computer Engineering is a lovely mix of Electronics Engineering and Computer Science. If you love robotics, you've come to the right place.

I'll give this thread a boost later when I get home.

Anonymous 16/09/18(Sun)06:57 No. 16360 ID: 607898

>is sitting in front of an internet connected medium


Anonymous 16/07/18(Mon)19:24 No. 16345 ID: 7c58b3 [Reply]

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Does anyone else like programming, but hate the classes they have to take in Computer Science?

Anonymous 16/08/15(Mon)21:03 No. 16349 ID: 75c683

Fucking, yes, so boringggggggg.

Anonymous 16/09/03(Sat)09:49 No. 16359 ID: e3ecf4

My teacher is probably the best and most well liked in the school, so I love them.

Storage madness Anonymous 16/08/31(Wed)10:13 No. 16356 ID: f62a88 [Reply]

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Basically, my file/folder organization is pretty non-existent. EG: pictures folder has like 5 subfolders that make no fucking sense.

TL:DR how do you sort out your shit?
and are many fucks given about filenames

Anonymous 16/08/31(Wed)11:26 No. 16357 ID: a71326

>how do you sort out your shit?
Make a new folder then copy everything into that organising it as I go. Then delete the originals.

Anonymous 16/09/02(Fri)04:06 No. 16358 ID: ef54e2

I've long realized that hierarchical file systems are inadequate to perform content-based organization of large quantities of files.
For example, suppose you want to organize your huge collection of photos of cats. So you make directories with names such as "tabby", "scottish fold", "lolcat", "kitten", "black cat", etc. What do you do if you have a picture with a black kitten and a scottish fold? Do you store it redundantly? You could use symlinks or hardlinks (both supported in Windows since Vista), but that runs into problems when you need to move things to new storage.

So now I'm working on a tag-based file system of sorts. Basically, I want to be able to tag (e.g. "black cat" could be a tag) any object (files, collections, etc.) and be able to search for any objects with some combination of tags. My idea is similar to what is outlined in this[1] paper, although I thought of it independently.

[1] http://www.eecs.harvard.edu/~margo/papers/hotos09/

Can someone please explain this "science matrix wtv" bullshit, t Anonymous 16/08/23(Tue)11:27 No. 16355 ID: eecf77 [Reply]

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PedoFinderGeneral pedospotter 16/08/17(Wed)09:10 No. 16351 ID: e75e2a [Reply]

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shouldn't all pedos go jail soon?


dont pedos ever wonder how come
other pedos know all about them
despite they all use winrar?

that its strange they break
eachothers security with
the most basic knowledge

do you think pedos will
ever realise its not really
scientifically accurate
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microscopic telescope Anonymous 16/07/22(Fri)21:09 No. 16346 ID: f55268 [Reply]

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I just wondered, I have never heard of a microscopic telescope. By this I mean a device along the lines of a large nature-style camera lens or traditional telecope that is able to zoom in to the target area of a physical item and produce a 3d environment of that area through the lens? Surely theres an infinite amount of detail from a physical item We have all this advanced astronomical technology these days to look at things that lie in the distance. What would happen if technology was put into microscopic telecopes thanks everyone

TLDR: a lens of intricately layered magnifying glasses that self multiply

Anonymous 16/07/23(Sat)01:39 No. 16347 ID: 099ff6

>microscopic telescope
What do you mean? A telescope of microscopic proportions, or a telescope able to detect micro-scale features of objects at astronomical distances? Judging by the rest of your post, I'm going to assume the latter.

>produce a 3d environment of that area through the lens
What? What microscope or telescope is able to do this? All a scope does is take a cone of light and focus it to make it appear larger, and thus easier to see to human beings (obviously this doesn't apply to electron microscopes which work by entirely different principles).

>Surely theres an infinite amount of detail from a physical item
No. Photons are discrete particles. It's possible for an object to be so far away that even if we convert the entire surface of the Earth into a receiving device, not enough photons from the object will hit the Earth during its entire lifetime to get even sub-meter resolution. To get sub-meter resolutions within a human lifespan for relatively close objects (say, 1 light year) would require astronomically large objective lenses. Or, the detection device would have to move really fast around the target, which would increase the resolution only in the dimension of motion.
For example, the LIGO experiment, which is believed to have detected gravity waves from the black hole at the center of the galaxy, uses "lenses" (they're not actual lenses, but they're analogous) with a radius of 4 km.

Pirate Radio? Krang!HCYzxgP8mg 16/07/08(Fri)08:16 No. 16339 ID: 36b316 [Reply]

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If I wanted to build a radio transmitter (most likely over CBR since it's legal), what would be some tips? I've looked up some tutorials on this, but I want to know any stuff that I ought to look out for or any pitfalls that are easy to run into when building/transmitting. Looking mainly for technological tips here. I know a little about circuits (e.g. what capacitors and resistors are, how to use a soldering iron), but I want to know some basics: I'm looking to broadcast over a fairly small area (~10-25 mile radius).

I'd like to be able to play stuff from my computer as well. Anyone have tips on this? I assume you can just use the headphone jack as a line-out, but what sort of resources do I need on feeding a line-in to the transmitter?

Anonymous 16/07/06(Wed)06:42 No. 16337 ID: 0bf3b6 [Reply]

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"te he, we never said you couldn't fold the paper te he he :P "

well, guess what fuckers?

you also never said my three lines couldn't produce something else on the page in addition to the specified image

Anonymous 16/07/06(Wed)06:45 No. 16338 ID: 0bf3b6

contect: https://youtu.be/7XTe9lDiAhw

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