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/sci/ Science & Math

Threads added between 2016/02/10 and 2016/02/17

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Most viewed threads in this category

53 more posts in this thread. [Missing image file: ]
http://sci-hub.io/ >A researcher in Russia has made more than 48 million journal articles - almost every single peer-reviewed paper every published - freely available online. And she's now refusing to shut the site down, despite a court injunction and a lawsuit from Elsevier, one of the world's biggest publishers. >"Payment of $32 is just insane when you need to skim or read tens or hundreds of these papers to do research. I obtained these papers by pirating them," Elbakyan told Torrent Freak last year. "Everyone should have access to knowledge regardless of their income or affiliation. And that’s absolutely legal." >journal subscriptions have become so expensive that leading universities such as Harvard and Cornell have admitted they can no longer afford them. Researchers have also taken a stand - with 15,000 scientists vowing to boycott publisher Elsevier in part for its excessive paywall fees. >The site works in two stages. First of all when you search for a paper, Sci-Hub tries to immediately download it from fellow pirate database LibGen. If that doesn't work, Sci-Hub is able to bypass journal paywalls thanks to a range of access keys that have been donated by anonymous academics (thank you, science spies). >This means that Sci-Hub can instantly access any paper published by the big guys, including JSTOR, Springer, Sage, and Elsevier, and deliver it to you for free within seconds. The site then automatically sends a copy of that paper to LibGen, to help share the love.
133 more posts in this thread. [Missing image file: ]
Does /sci/ have a bias against the potential benefits of illicit drug use?

Toxoplasmosis

10 more posts in this thread. [Missing image file: ]
People on other boards have been saying that t. gondii has been weaponised and the government secretly uses it for advanced intelligence gathering for high value targets. Is there any possible way that a protozoa could somehow be harnessed in such a way? Perhaps changing its genome so to make its metabolic systems to survive do different things? Im speaking from a purely speculative side and it treads onto sci-fi a lot but I think there's something amiss in this creature besides the attraction to cats.

Programs

11 more posts in this thread. [Missing image file: ]
what does /sci think of lisp?

Study Techniques Thread

14 more posts in this thread. [Missing image file: ]
Is it unhealthy for me to study long hours until I get a headache, then I take a break, which is like 6 hours? I heard Bill Gates studies for an entire day.

TEXTBOOK THREAD

28 more posts in this thread. [Missing image file: ]
Post your favourites, and books you hate .

will this kill space x

37 more posts in this thread. [Missing image file: ]
post darpa space projects
7 more posts in this thread. [Missing image file: ]
Came across this recent philosophy of math book that appears to ague against a modern logicism http://bookzz.org/book/2198330/8dbe9d Also, ITT philosophy of math general, I guess
14 more posts in this thread. [Missing image file: ]
Why are computer science majors hated so much? I legitimately do not understand why. And no, I am not a computer science major.
26 more posts in this thread. [Missing image file: ]
How do I publish a technical book? Does it need to be published by a certain publisher? Does it need to be checked over and verified by someone qualified? I have been working on cheap PAVs (personal aerial vehicles or flying cars and hoverboards to the layman) with consumer-grade equipment for so long I don't remember why I started and should I fail due to lack of funds my hope is that if someone else reads my book that they could build it. I've tried posting my ideas on here hoping that someone would take it on board but I am widely derided as a nutcase. At least if I lay out all the mechanical designs and maths that I have done on this concept then maybe someone will take it seriously. The pic is the first page of the manuscript I have been working on. As you can see it is all real physics, no anti-gravity bull.
25 more posts in this thread. [Missing image file: ]
>mfw I am trying to be an EE >mfw born too early to be GE >mfw I can't take it anymore >mfw when I realise the world won't be able to harvest my creativity :(

A message to the pseudocience mongrels:

34 more posts in this thread. [Missing image file: ]
Gravitational waves, now being heralded as the greatest scientific discovery of the decade, do not bring with them some magical form of communication. Just because some hipster egghead with a liberal arts degree decided it would be a good science word to drop in their shitty science fiction novel, doesn't mean that the practical applications of gravitational waves can be anything you want them to be. So, let's talk about exactly what gravitational communication would mean: First off, Gravitational waves propagate at c. This makes them no more effective a means of ultra long distance communication than actual light. Secondly, they are very, VERY weak, and much harder to detect than light. To give you an idea of how weak they are, the "amplitude" of the gravitational waves detected at ligo, originating from 2 twenty to thirty solar mass black holes spinning around each other pretty damn fast astronomically speaking, was about 1/3rd the diameter of a proton. To put that in perspective, pic related. Protons are fucking miniscule. Lastly, we have no means of creating gravitational waves at any kind of detectable level.
4 more posts in this thread. [Missing image file: ]
>Mechanical engineering team project course >Final course grade multiplied by "Peer Evaluation"
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Can extremely excessive amounts of highly effective advertising cause ADD, depression, lowered IQ or any other negative effects?
75 more posts in this thread. [Missing image file: ]
I looked deep into my consciousness last night as I was going to sleep and I came to this conclusion. There are only 4 ways our Universe could have come about: >1. It and the values of the laws of physics were purposely designed >2. It came into a stable existence out of absolute nothing >3. The energy has always existed and has been a circularly regenerating different Universes for infinity >4. It came into existence out of an evolutionary chain of events, leading back into realms outside of time/matter/energy/laws, that defy all logic and may need no explanation So which is most correct?
69 more posts in this thread. [Missing image file: ]
This fucking analogy right here... There is no reason for lighter object to fall into the "well", there is no gravity at the bottom of the well ffs! This doesn't make any sense, and even less in 3d visualization where the 3d grid only gets denser towards the massive object
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Jet fuel can't melt steel beams?

Human evolution

29 more posts in this thread. [Missing image file: ]
Can someone give me a better explanation on how we evolved through time. Like where we started etc.

Please clarify the meaning of "event horizon"

24 more posts in this thread. [Missing image file: ]
As I understand it, An event horizon is a area past which gravity warps space-time such that temporal distortions prevent the realization of events within their boundary. 'Stuff can't happen past this line.' A collision is an event. 'A black hole collision is stuff crossing the line.' >Given this, how can black holes "collide"? >Or is this a sloppy layman's term that in fact describes a 'close encounter' between black holes? I'm not invalidating the gravity wave findings, just finding the logic hard to follow from my place of ignorance.
3 more posts in this thread. [Missing image file: ]
Woah what the FUCK /sci/? This guy is saying radioactive material such as Uranium and Plutonium can't hurt you and even licked Uranium Oxide off his hand. Is it true? https://www.youtube.com/watch?v=GMPbpZ34T2c






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