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/sci/ Science & Math

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Most viewed threads in this category

Online book download sites?

13 more posts in this thread. [Missing image file: 2048.jpg]
Hey /sci/ I am just wondering do you guys know of any book repositories that I can download books as PDF's? ever since bookos.org shut down I don't know where else to get books on-line from Thanks in advance.
0 more posts in this thread. [Missing image file: checkem.jpg]
I was wondering if anyone had the Bioengineering fundamentals by Ann Saterbak PDF that I could download? I need it to begin my bioengineering class next semester... I'd be so grateful.
0 more posts in this thread. [Missing image file: Blue Parrot.jpg]
Does anyone here know an easy to understand explanation of the solution to the Entscheidungsproblem/Halteproblem, either with the turing-machine or the Lambda-calculus? Like Entscheidungsproblem for Dummies? Without all the cryptic formalisms?

Attuned Vibrations

33 more posts in this thread. [Missing image file: 1383621868391.jpg]
What are your thoughts on the website attuned vibrations? I've been reading up on their sections talking about Solfeggio Frequencies, 528 Hz frequencies, and 432 Hz frequencies. This all seems very interesting, but I'm wondering how legitimate it is? The one that intrigues me most, is 432 hz frequency music. It is supposedly in sync with the natural pitch of the universe, and resonates with the 7.8 frequency that German physicist Professor W.O.Schumann discovered to be the frequency of the earth. They go in depth in explanation here: http://attunedvibrations.com/432hz-healing/ This is all very interesting, but it doesn't seem there are too many studies being done on the effects of listening to certain frequencies of music. Any of you guys use binaural beats or meditate to certain frequencies?
4 more posts in this thread. [Missing image file: 1375999943086.jpg]
so what was the difference between evaporation and combustion again?
10 more posts in this thread. [Missing image file: black-flag.jpg]
Hitchens , under the Dawk Umbrella , in the face of DEATH acknowledges that BIOLOGY is the Human Science of note, from which all else etcetera.... http://www.youtube.com/watch?v=ud973COUVYs

are dfysfunctiuonal families real?

8 more posts in this thread. [Missing image file: family.jpg]
>Sceptic here I want to ask the Psychology-students if dysfunctional families arebased on real hard falsafiable science? is it pseudo scince? if it there are credible publications and research about it can you maybe give a link or citation? thanks
6 more posts in this thread. [Missing image file: _51631647_004702254-1.jpg]
So in the Great Britain they are working on a way to donate genes to a child from a third parent. Technically the child would get genes from 3 people. Its supposed to fix disseased mytochondries which some mothers have. These mytochondries would breed disabled children. If these thing goess legal, such a children could be born in the 2015. What is your opinion on this /sci/? I am honestly quite disturbed by that...
2 more posts in this thread. [Missing image file: 1341402316999.jpg]
Dear /sci/, what is the difference between "hermitian" and "self-adjoint"?
11 more posts in this thread. [Missing image file: Bildschirmfoto 2013-12-24(...).png]
Hello guys, I'm doing my homework, but it's not working out very well. I have given this function, which I have named y instead of f(x). What I need is the inverse function of y. What I have done here seems not right, I mean I can't even plot it in MATLAB for some reason (complex all the way, even if I give only negative x). Can you take a look at it please?

You guys need this thread right now it's ok baby

1 more posts in this thread. [Missing image file: it's ok.jpg]
:3 http://www.youtube.com/watch?v=Xs9aGVUZ3YA
4 more posts in this thread. [Missing image file: battle_Station.jpg]
http://www.npr.org/blogs/thetwo-way/2013/12/24/256749586/watch-live-space-station-spacewalk live spacewalk. check it out.
1 more posts in this thread. [Missing image file: 1310740584982.png]
I thought you might like this >>>/fit/24218943 Please contribute, the stupidity is geting out of control
2 more posts in this thread. [Missing image file: 129946022272.jpg]
How would Earth's climate be if the axial tilt was twice as big (~45º) as it is now? I suppose the global average temperature wouldn't really change much, but locally the efects could be devasting.
11 more posts in this thread. [Missing image file: nightatoll1fb.jpg]
Repost >>6244788 ITPT: Hypotetical planetary model Help me with the data, will you? Here's what we know: >Major planet has the same characteristics (volume, mass and density) as uranus >Major planet has 11 moons >One of the moon is inhabited by the same life forms of the earth so i'll suppose it's in the habitable zone and has the same gravity >This moon (we'll call it moon A) is in asynchronous rotation with the main planet >Moon A has a rotation period of 28 hours >Moon A has a revolution period of 322 days around the sun divided in 168 cold days and 154 hot days >Moon A gets eclipsed by the main planet this year, on the 307th and 316th day >Moon A gets eclipsed by the other moons at least 2 times per year >Moon A gets usually eclipsed by the main planet 60 times an year, regularly Here's what i want: -Mass/Volume/density/rotation and revolution speed of Moon A if it's any different from the earth -Orbit/rotation and revolution speed of main planet, and if he has a ring -Orbits/characteristics of the other moons -Some other interesting information about this little planetar/solar sistem that we can deduce >>6244852 we have no informations about what he asks CMON /sci/, SHOW ME THE GOOD STUFF

Chem pathway guide?

3 more posts in this thread. [Missing image file: Ch4-structure.png]
For learning physics there is http://www.staff.science.uu.nl/~hooft101/theorist.html and I know there is one for math, but are there more for other subjects? Math and physics, while interesting to me, are not at the top of my want-to-learn list. I was wondering if there was one for Chemistry (mostly in the organic direction?) or Biology (neuroscience direction). I REALLY have a hard time organizing myself and figuring out what to do next, so these types of guides are exactly what I need to be able to learn something on my own, exactly what I feel self-learning is missing compared to going to a uni. I, personally, need this kind of direction, and it would be really be useful to find more guides like this. Is there maybe a name for these sorts of guides?
7 more posts in this thread. [Missing image file: addgateway_electrolysis_2.gif]
Would electrolysis work without an electrolyte? What would happen if you just push the cathode and anode together?
26 more posts in this thread. [Missing image file: half life.jpg]
How much math that you learned in High School is actually used in a field such as programming? I dropped out of High School in the 9th grade and only learned things such as exponents. Frankly, I'm afraid of learning programming because I'm worried that I'll have to learn more math.
13 more posts in this thread. [Missing image file: 1382407836916.jpg]
For New Years I am quitting caffeine. How long does it typically take for the body to normalize again?

How many is too many?

2 more posts in this thread. [Missing image file: 1371558259271.jpg]
Yo /sci/ I'm kind of curious, If, theoretically speaking, a trio of ships were all built with the sole purpose of taking colonists to alpha centauri and extending the reach of the human race to distant stars (while increasing the likelihood of the proliferation of the species) how many colonists would be too many? I'm asking this from the standpoint of feasibility, assuming that everyone onboard at least had a college degree, with a huge portion having masters and phd's in various necessary fields. I'm basing this all on the - in my opinion not quite erroneous assumption - that given the opportunity many people wouldn't just forgo pay, but would willingly pay for the opportunity to work in space or settle another system. Pic Related........whoulda thunk






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