Pure math fag here trying into CS because muhjobs/ general interest. When do I pick this up?
8 Posts / 1 Images
View this topic
>>
They don't need you to be a code monkey. Leverage your math skills. They are much harder to find than some random CS code monkey.
>>
>>9073413
I'd like to read SICP too. Someone start a reading group!
>>
>>9073421
True, but don't most jobs outside academia require some coding skill? I know it os probably better to know C++ to implement numerical algorithms, but figure I would like to know more than your average python monkey.
File: nchem.1377-f1[1].jpg (32KB, 946x503px) Image search:
[Google]
![nchem.1377-f1[1].jpg](https://i.imgur.com/xVoKNxD.jpg "nchem.1377-f1[1]")
32KB, 946x503px
How far away is complete reaction simulation, where you can just enter molar ratios and solvent, temperature, etc. and have the computer spit out the expected reaction products? It seems possible but just not worth the massive computation time that would be required.
Related, what's the best way to predict the feasibility of reactions computationally? It seems like you should be able to compute rate constants or something to see if there's any appreciable chance the reaction will actually occur. I have used spartan before but i have no idea how to do anything but predict spectra and other static properties of single molecules.
2 Posts / 1 Images
View this topic
>>
Software like Gaussian, GAMESS, MOLCAS, Orca etc. can help you calculate many chemical properties of relatively small systems and QM/MM software can help you model larger groups.
You can plot the potential energy surface of all geometric configurations of a set of atoms and find yourself a path over it through stationary states like locak minima & transition states who are characterized by a single imaginary fequency obtained via the Hessian matrice.
But even then you do not have the complete reaction scheme of the system. You need to probe intersystem crossing probbailities etc with the Pauli-Breit hamiltonian, excited states... and you need to have the knowledge to operate all these functions at a sufficient level, like choosing the level of theory (CASSCF, DFT, Coupled Cluster, ...)
All in all, I would recommend Orca by Frank Neese since it was free the last timne I used it and very very capable
or write your own sotware but handling many center integrals properly can be a bitch
File: heydar-alijev-centre.jpg (173KB, 1540x944px) Image search:
[Google]
173KB, 1540x944px
Is architecture science? Enlighten
9 Posts / 1 Images
View this topic
>>
>is art science
No, anon, it's not.
>>
>>9073314
But they collaborate with structural engineers, mechanical engineers and electrical engineers. They optimize the design with this engineers.
>>
>>9073316
Engineers aren't scientists. They're engineers. They just happen to use science. Much like most people who use math aren't mathematicians.
File: Book for the idiots with brain so faulty, they can't grasp what I say.jpg (51KB, 686x316px) Image search:
[Google]
51KB, 686x316px
>"Let me guess: XXXX, amirite????"
What fallacy is it when someone dismisses an argument just because it was used too much or by too many people (even if it never was properly debunked)?
7 Posts / 1 Images
View this topic
>>
Its not a fallacy, they just dont want to talk to you if you say things like that. Or they want to demonstrate how well versed they are in the topic.
Fucking autists.
>>
>>9073260
It's an ad populum fallacy, but negated.
Normally it's "a lot of people believe it so it's true" but in this case it's "a lot of people believe it so it's false".
>>
>>9073260
Could be inversed argumentum ad nauseam
So my friend broke something...
Thin-layer chromatography requisites 2017-07-30 08:54:03 Post No.9073249
[Report] Image search: [Google]
Thin-layer chromatography requisites 2017-07-30 08:54:03 Post No.9073249
[Report] Image search: [Google]
File: image-0-02-05-0a8933ca8a13f67ab5d6ef43715d756a75e84f5fd3c663dba0750707669589d1-V.jpg (98KB, 960x1280px) Image search:
[Google]
98KB, 960x1280px
Thin-layer chromatography requisites
So my friend broke something...
2017-07-30 08:54:03
Post No. 9073249
[Report]
[View this topic]
What is this and where can I find something similar?
4 Posts / 2 Images
View this topic
>>
File: image-0-02-05-5a9666f1fd61ea391fd7c48a4c508c51057abe5e7dd272573867ee33d9ce8704-V.jpg (100KB, 1280x960px) Image search:
[Google]
100KB, 1280x960px
This thing is 40-ish years old. Made of glass and metal. It's around fifteen to twenty centimetres long and has a capacity of 25 micro- litres (according to my friend).
>>
Hamilton syringe. You can basically get it everywhere.
>>
>>9073291
real hamiltons are fucking expensive
File: mario bunge.jpg (55KB, 214x319px) Image search:
[Google]
55KB, 214x319px
Is Mario Bunge the most intellectual scientist of our time?
3 Posts / 1 Images
View this topic
>>
>>9073195
>In the political arena, Bunge has defined himself as a "left-wing liberal" and democratic socialist, in the tradition of John Stuart Mill and José Ingenieros.
To the trash it goes.
>>
>>9074713
Yeah centrists get fucked, noam chomsky is the more prolific and informed intellectual.
File: autism.jpg (97KB, 617x640px) Image search:
[Google]
97KB, 617x640px
What measures do you take to make your memory more efficient, both in first learning things and in retaining them?
Cardio? Fish-oil? Loci method? Spaced repetition?
What works best for you?
4 Posts / 1 Images
View this topic
>>
posting on /sci/ - Science & Math
>>
Being genetically superior
Brainlet
>>
>>9073172
I very much doubt that helps
File: 20170707_154026.jpg (2MB, 4128x2322px) Image search:
[Google]
2MB, 4128x2322px
I've had a thought:
Could we use the displacement integral to describe things in the fourth dimension for things in space and time? Is 4 space just much more than adding up displacement throughout a time interval? Total physics scrub so that's why I'm asking out of curiosity. Basically to see if absement has any useful properties for large objects in space
1 Posts / 1 Images
View this topic
No replies in the DB for this post!
File: 1468522443359.jpg (80KB, 500x750px) Image search:
[Google]
80KB, 500x750px
Are there any foods out there that help with brain fatigue?
I have an oral exam coming up and I've found after 25 mins or so of intense thinking my performance declines significantly.
8 Posts / 1 Images
View this topic
>>
>>9073156
almonds maybe
good fats but high calories
>>
>>9073156
walnuts
>>
Blueberries and crack
File: 1426418196151.jpg (183KB, 602x692px) Image search:
[Google]
183KB, 602x692px
How long until science can turn grown men into little girls?
6 Posts / 2 Images
View this topic
>>
We were already there years ago.
https://www.youtube.com/watch?v=dCVRrybYWNE
>>
File: yumenikkipuke.jpg (82KB, 680x680px) Image search:
[Google]
82KB, 680x680px
>>9073154
>>
>>9073154
came to post this.
File: 1500871762687.jpg (6KB, 268x326px) Image search:
[Google]
6KB, 268x326px
Did witten's mother give birth to him via c section?
8 Posts / 1 Images
View this topic
>>
no, the large head phenotype manifests as a large vagina phenotype in women
>>
[math]\textrm{He's got that phenotype}[/math]
>>
[math]\mathbb{BIG}[/math]
File: 40c3077bfa4376c19c6bd678bcee2b7f--science-textbook-dipper-pines.jpg (82KB, 500x735px) Image search:
[Google]
82KB, 500x735px
Are the "Dover books on X" series good for math and science? They're all really cheap on Amazon, like:
https://www.amazon.com/Introduction-Topology-Third-Dover-Mathematics/dp/0486663523
https://www.amazon.com/Number-Theory-Dover-Books-Mathematics/dp/0486682528
https://www.amazon.com/Theoretical-Physics-Dover-Books/dp/0486652270
https://www.amazon.com/Quantum-Theory-Dover-Books-Physics/dp/0486659690
They are all sort of a set of small intro books that seem like nice small intro books good for reading on flights and stuff. Are they high quality though? Anyone familiar with any from this set?
7 Posts / 2 Images
View this topic
>>
>>9072989
The wikia recommends several of them.
>>
pollard and tennenbaum's book on differential equations is really nice. It includes a number of techniques which are pretty slick and no longer in modern syllabi. It's very pedagogical and easy to learn from, but it comes from an age when people had to look up logarithms in tables, it's a cozy feel.
>>
File: 3syZ5kB.gif (3MB, 256x256px) Image search:
[Google]
3MB, 256x256px
>>9072994
>>9072996
Thanks anon just bought the one you suggested and all of these for a total of about $150, holy shit this is such a good value. We have advanced so far as a society, having a euphoric moment I can't wait to read a fraction of these then give up /s
>Ordinary Differential Equations (Dover Books on Mathematics)
>Number Theory (Dover Books on Mathematics)
>Mathematics for Physicists (Dover Books on Physics)
>Mathematical Foundations of Information Theory (Dover Books on Mathematics)
>Information Theory (Dover Books on Mathematics)
>Games and Decisions: Introduction and Critical Survey (Dover Books on Mathematics)
>Mathematical Modelling Techniques (Dover Books on Computer Science)
>Mathematical Programming (Dover Books on Computer Science)
>Geometry: A Comprehensive Course (Dover Books on Mathematics)
>Mechanics (Dover Books on Physics)
>Theory of Sets (Dover Books on Mathematics)
>The Philosophy of Space and Time (Dover Books on Physics)
>Thermodynamics (Dover Books on Physics)
>Quantum Theory (Dover Books on Physics)
>Combinatorial Optimization: Algorithms and Complexity (Dover Books on Computer Science)
>Introduction to Graph Theory (Dover Books on Mathematics)
>Theoretical Physics (Dover Books on Physics)
>Horns, Strings, and Harmony (Dover Books on Music)
>One Two Three . . . Infinity: Facts and Speculations of Science (Dover Books on Mathematics)
>Mathematical Fallacies and Paradoxes (Dover Books on Mathematics)
>Matrices and Linear Transformations: Second Edition (Dover Books on Mathematics)
File: kizuna_ai__iykwim__by_thela28-db0ax94.jpg (121KB, 1280x720px) Image search:
[Google]
121KB, 1280x720px
Live space walk. Get in here.
http://www.youtube.com/watch?v=RtU_mdL2vBM
1 Posts / 1 Images
View this topic
No replies in the DB for this post!
Russian Payphone
Russian Payphone Cold War code? 2017-07-30 02:49:41 Post No.9072833
[Report] Image search: [Google]
Russian Payphone Cold War code? 2017-07-30 02:49:41 Post No.9072833
[Report] Image search: [Google]
File: Moscow-MGTS-booth.jpg (1MB, 1536x2048px) Image search:
[Google]
1MB, 1536x2048px
Russian Payphone Cold War code?
Russian Payphone
2017-07-30 02:49:41
Post No. 9072833
[Report]
[View this topic]
Hello /b/.. I have recently went to Moscow, Russia for a small trip with a few friends, really just to get some photos for shit posts. While me and my friends were walking down a narrow road with a few random faggots that look like there from the 1990s but we did walk past one man in a black trench coat and a classic paper boy hat (small head) and vary round vary dark shades, he looked to be carrying something but I did not really pay any attention but after about 5 more minutes of walking I found PayPhone ringing and being a really big dumb ass I picked it up. All it said was some Russian word translated to, Be Up. As well as 14 numbers, 1-9-6-57-6-6-9-56-67-99-4-12-42-12. I had a thought six played a big part but was not able to really crack anything thus far, I have done some research with the be up part on google maps and there is a club in Russia called Be Up but I could not find it anywhere on google maps, having friends in Russia and asking them if they knew anything about "Be Up" they said it closed down back in the 1990s and it was supposed to be a big party spot for under aged drinking as it was not an official bar and was supposedly open during the cold war for rebels to give information for booze, so what I was thinking is there could be old information at that bars spot about the cold war and thats the information number but the KGBs been gone for years maybe a possible comeback from them, probably not. I Will be going back to Russia to investigate but for now for (Because I don't know how important this is) I'll keep things about me slim. I'll be returning with more information tomorrow
3 Posts / 1 Images
View this topic
>>
>>
You just remembered 14 numbers just like that and wrote them down when you got home or what
Anonymous
Portal Question: A or B 2017-07-30 02:21:20 Post No.9072793
[Report] Image search: [Google]
Portal Question: A or B 2017-07-30 02:21:20 Post No.9072793
[Report] Image search: [Google]
Reasons for A:
Conservation of momentum and energy in the given reference of frame
Reasons for B:
v - V = v’ argument:
The cube has the velocity we ascribe to the portal if we look at the model from the portal’s frame of reference.
This suggests that the cube has kinetic energy, which means it must conserve that according to the portal.
As the cube’s mass doesn’t change in - or exiting - the portal (I hope) its relativistic speed must be similar to the relativistic speed before entering the portal, thus it appears to be flying away from the portal.
Collapsible corridor argument:
If you chuck a collapsible corridor at a floating kid (so that the kid goes through the collapsible corridor) it will appear as though the kid is flying away from the corridor, despite the opposite being true.
Any other arguments?
1 Posts / 1 Images
View this topic
No replies in the DB for this post!