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/sci/ - Science & Math

 Name Options Subject Comment Verification 4chan Pass users can bypass this verification. [Learn More] [Login] File Please read the Rules and FAQ before posting.Use TeX with $tags for inline and [eqn] tags for block equations.Right-click equations to view the source.  06/20/16 New 4chan Banner Contest with a chance to win a 4chan Pass! See the contest page for details. 05/08/16 Janitor acceptance emails will be sent out over the coming weeks. Make sure to check your spam box! 04/28/16 New trial board added: /qst/ - Quests [Hide] [Show All] New 4chan Banner Contest with a chance to win a 4chan Pass! See the contest page for details. [Catalog] [Archive] File: sciguide.jpg (9 KB, 200x140) 9 KB JPG https://sites.google.com/site/scienceandmathguide/ >> Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path. If you want advice regarding college/university or your career path, go to /adv/ - Advice. If you want help with your homework, go to /wsr/ - Worksafe Requests. File: maxresdefault.jpg (133 KB, 1920x1080) 133 KB JPG Do monkeys have skeletons? >> File: NO.jpg (25 KB, 380x380) 25 KB JPG >>8166140 Contrary to popular belief, maybe. >> a real head scratcher >> not sure but if there's one thing I know for sure is that turtles don't have spines File: 1457207604395.gif (3.21 MB, 720x508) 3.21 MB GIF So when drumpf gets elected and seeing what happened with the UK... How far of a set back will this be? Is this going to be a second dark ages? I mean, I know we'd be colonizing mars with nasa if Bernie won, but facts are facts.. 31 replies and 1 image omitted. Click here to view. >> >>8166193 >>admits communism is only good for nice strawman >commu-spawn. >says I admit that communism is good at killing dissidents ...what? My advice, instead of trying to save face and have the last word in this discussion, how about you try to educate and correct yourself based on what I have posted instead. It's going to benefit you more in the long-term, much more than putting a label on me and ignoring everything I said to give you the feel that you triumphed over an internet opponent by insulting him to death. >> >>8166079 >and seeing what happened with the UK Stop overblowing things. >> >>8166202 Communism is dead, bucko. No one believes your retarded trolling that communism is the greatest thing in science, despite every communist country being a shithole. Even Islam has contributed more to science. >> File: sH2TaPH.jpg (51 KB, 1080x865) 51 KB JPG >>8166200 >>hey look at this point not what you are refering to! >Okay and? What are you trying to say? Are you claiming an opt-out vaccine policy is a moderate stance? >> >>8166211 okay, damage control and ad hominems it is File: Wind-5.jpg (1.72 MB, 2560x1600) 1.72 MB JPG What is the point of wind? 2 replies omitted. Click here to view. >> to disguise my farts >> >>8165668 is this b8? there is no point, the question doesn't even make sense, no one created it, therefore it does not have a purpose. >> It actually does have a point. It is created by pressure imbalances from heating and serves to even out both. >> >>8165668 breathing >> >>8166171 >>>8165668 (OP) >is this b8? >there is no point, the question doesn't even make sense, no one created it, therefore it does not have a purpose. Your punctuation reeks of middle school. >no one created it. You couldn't possibly know that. File: dan_dennett.png (39 KB, 800x600) 39 KB PNG What are /sci/'s thoughts on the hard problem of consciousness? How can matter give rise to subjective experience? 84 replies and 7 images omitted. Click here to view. >> >>8166101 >So is consciousness Not yet. You're welcome to explain it to me if you think you know. And please try to get an intuative understanding of what the hard problem is before you attempt to do so. >> >>8166118 >please try to get an intuative understanding of what the hard problem is before you attempt to do so. That's gonna be hard, given you've utterly failed to even vaguely describe it in any way other than pure hand-waving. >> >>8166184 Consciousness is [insert quantum woo nonsense] that makes humans feel special because we're not just an object that conforms to the physical laws of the universe. >> >>8166184 If this >>8164210 isn't good enough, maybe this will suffice? https://en.wikipedia.org/wiki/Hard_problem_of_consciousness If you want even more in depth, here is a paper about it from chalmers. http://consc.net/papers/facing.pdf >> >>8166198 Why is subjective experience magical? This whole thing feels like a poorly defined word game. We experience things with way we experience them because of the way our brains work. Asking why a brain that's capable of of observing it's surroundings and using that information to understand them has an "experience" is akin to asking why a car that provides traction and steering is capable of driving - it's because that's what we name the thing it does. Maybe I'm not understanding the "hard problem", but it still seems meaningless. File: 1456714475815.jpg (86 KB, 650x560) 86 KB JPG I work at a Lowe's in Alabama and once had a customer claim that the second law of thermodynamics proves that evolution can't be true because entropy over time can never decrease. Anyone else care to share the worst scientific arguments people have made? 22 replies omitted. Click here to view. >> >>8164546 >implying people on /sci actually know any science >> >>8164310 So what? Evolution is going on in an open system, therefore entropy CAN decrease locally. >> >>8164546 Try using your words to properly convey your feelings. You referred 8 unrelated posts and mentioned a 70 year old book that suggests life uses yet-unknown physics, which is completely tangential to the difference between entropy of an open system and entropy of a closed system. I'm mostly triggered because I am >>8164292 and I said absolutely nothing on the subject. Perhaps you misread. >> >original purpose of thread is for retarded 'scientific' arguments >turned into an argument over entropy >> >>8164342 >Overall entropy cant decrease, local entropy can if you feed it energy >>8164345 >Yeah, that makes sense. If it didn't, then air conditioning wouldn't work either. File: berger.png (296 KB, 500x375) 296 KB PNG He's trolling, right? https://www.youtube.com/watch?v=REeaT2mWj6Y >> >>8165779 He's always trolling. Master ruseman. >> File: 1462227739667.png (170 KB, 396x388) 170 KB PNG >>8165779 No >> File: wildburger.png (195 KB, 1650x1050) 195 KB PNG >>8165779 >> He smirks in every video. He's definitely trolling. File: 1424794872449.jpg (68 KB, 500x400) 68 KB JPG >tfw antibiotic resistance is the biggest threat to humanity How best to avoid serious infections? 9 replies and 1 image omitted. Click here to view. >> >>8165823 lol garlic is your best hope pleb >> >>8165823 >B... but muh soviet bacteriophages >> >>8165885 its ok we'll bring in millions of turd worlders to spread infectious diseases no biggie >> >>8165845 >tumblr humor Do they get off on being extremely unfunny? >> >>8165823 Re-colonise the pooinloos to prevent their creation of superbugs through their antibiotic pollution and shitting street, god-tier superbug environmental breeding grounds. 100k that the next pandemic will come from India. File: nuhk.jpg (126 KB, 1024x1200) 126 KB JPG >>> Less than one kilogram of Plutonium-239 is required for a implosion nuclear device. How come no terroristfags haven't yet succeeded in figuring out how to build the ultimate terror device. Is it because people like ISIS adhere only to Aryan physics and shit? 22 replies and 4 images omitted. Click here to view. >> >>8166152 i think on /mu/ the other day, if not there somewhere here cheers anon, i hope it comes in handy someday >> >>8166162 that makes me sad, as i would like to have more nice walking duck images thank you anyway >> >>8165390 >Is it much harder than just mashing two 5kg pieces together? Considerably. Basically, you'll get a fizzle unless either the pressures generated by the escaping energy serve to compress rather than disperse the critical mass, or you can assemble a *very* supercritical mass before a stray neutron sets the whole thing off. It's pretty hard to find someone academically smart enough to do the math and practically smart enough to make the device match the math, without having a very convincing, very reasonable argument for why you should have nuclear weapons (including how you're going to pay them, and how your actions after they've built you a bomb will be consistent with them getting to enjoy their pay over a long, peaceful life). These sorts of people aren't buttmad in a desert somewhere. They're largely free to live in whatever country they want, and get as rich and comfy as they want, while openly enjoying the esteem of their peers and respect of their community. The production or other acquisition of plutonium isn't easy either. I don't doubt people try to get it all the time, and this is when most of them get caught. >> >>8165384 >Nuclear engineer here, not true. Even weapons grade plutonium (~90% 239Pu) has a critical mass around 10kg That's a bare critical mass at STP. You mean "nuclear engineering student", right? Like... first year? They do make boosted fission primaries with under 1 kg of plutonium. Density (and the reflector) matters a lot. >> >>8166195 4th year but I'm not an expert, no. From what I was aware of the lowest critical masses for implosion type devices were around 4kg with reflection, 3 stage weapons have other engineering requirements. It was my understanding that you need a DT fusion source for such a small critical mass. In any case I still think it's especially unlikely that a non-state actor could assemble any kind of functional nuclear weapon with under 1kg of Pu How likely is a Half-Life scenario to happen? Where Humanity is enslaved by aliens and Earth's resources are depleted? >> >>8166114 50%. Either it happens or it doesn't. >> >>8166114 I gave this a shot and came up with a first-order approximation of [math]\frac{g_{128}}{g_{132}}$ where $g_1 = 3 \uparrow^4 3$ and $g_n = 3 \uparrow^{g_{n-1}} 3$. The derivation is too long to put in this post.
>>
>>8166194
Go figure, my LaTeX worked perfectly in the preview. I guess people weren't lying when they said it was broken.
>>
Earth's 'resources':

1. About 100 stable elements, as found anywhere in the universe.

2. An untameable species of tool-using ape that can be driven to violence over trivial matters and constantly fantasizes about killing extraterrestrials.
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>>8166114
Highly improbable.

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Is there any proof that watching porn is bad for you?
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>>8166011
Encyclopedia Dramatica
one of the worst things that could happen to you
Pretty fucking awful if you ask me
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>>8166023
When I was at a boarding school without a good internet access I didn't watch much porn, but now with a regular access every fetish of mine is slowly becoming mundane and I have to deviantify some of them even more to rekindle the flame within myself.
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>>8165970
You're implying that the majority of the population has a sexual problem.
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>>8166073
You're implying that it doesn't. Sexual problems are fairly common in the modern world, the only thing that varies is severity.
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>>8165864
Thanks for sharing. How you described your motivation to be after fapping actually sounds really similar to how I feel a lot of the time. I'm actually going to try nofap for a while like you suggested.

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What is the neurological basis for inability to feel love?

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WHAT THE FUCK IS LIGHT

How would you explain what light is?

A small piece of energy? An oscillating electromagnetic field? But what are those things. Please help me understand what light is at the most fundamental level (if u say photons u beter explain more)
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>>8164038
Physics has nothing to say about whether there are actually electromagnetic fields, and if so what they are. Physics is silent on what a photon when it's not being observed, other than to say it's "intrinsically undefined", to quote the words of John Wheeler. Why are you such a dismissive faggot
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>>8164440
*is
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>>8164207
Light doesn't travel at c. Nothing does. There's always some refractory aspect which slows particles.
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this is the worst board on 4chan
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>>8162558
>being this dumb
Did you just time travel from the 1890s to today? If so, can I borrow your time machine?

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Whats the source of gravity.
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>>8163791
>Whats the source of gravity
A massless spin-2 particle.
>>
Well over a thousand years ago the great Merlin conducted a ritual of immense power that would stop the people of England from flying off into space, however he miscalculated the amount of power he needed for the spell and he accidentally made it affect the whole universe.
The aftereffects of this great magic is what we know as "gravity" today.
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>>8163791
It's a dimension.
>>
Many will say the source is warped/curved space/time.
If you had a scale on mars,moon,and earth.a bag of rocks would have different weights,on each one.
Also the further away from each ,the measurement would drop by a squared amount.
Yet we are lock into a grand collision with Andromeda, because it is curving space at enormous distances.pulling us towards it like a giant attractor beam.
Now we find out that gravity is also rippling and making waves through space.
We need to figure out what space is first,then ask why things naturally want to go in a straight line.when there is no such thing as a straight line in the universe or nature.
Maybe a straight line is just a crazy idea like the existence of time.we came up with and doesn't really exist.
Then gravity being curved space,would just be another crazy idea.
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>>8163859
Where do gravitons come from then?

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Tell me the truth about SSRI's /sci/
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ON SSRI's:

https://en.wikipedia.org/wiki/Serotonin_syndrome
https://en.wikipedia.org/wiki/Antidepressant_discontinuation_syndrome
http://www.ncbi.nlm.nih.gov/pubmed/18628446
http://www.ncbi.nlm.nih.gov/pubmed/22750076

On Antipsychotics:
https://en.wikipedia.org/wiki/Tardive_dyskinesia
https://en.wikipedia.org/wiki/Neuroleptic_malignant_syndrome
http://psychiatry.gr/2icnpepatg/abstract-book.pdf P.222-224
http://www.ncbi.nlm.nih.gov/pubmed/9640489

According to the current consensus of the World Psychiatric Association:
- The Chemical Imbalance Hypothesis is just a hypothesis, not a working theory, and it has been over-promoted by the Pharmaceutical industry. The current [2016] consensus it that the drugs are primarily just "designer" stimulants and sedatives that can cause long term iatrogenic damage.
- The gene, or biological disease model is completely inaccurate, and instead the bio-psycho-social model is instead accepted by the psychiatric consensus.

Pic unrelated, just posting for fun.
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>>8166027
>Cures
You mean "treats", and it does that by distracting your brain.
The National Center for Biotechnical Information lists no known "psychiatric cures"; only "hypothetical treatments".
The World Psychiatric Association and the American Psychiatric Association also claim there are no "psychiatric cures".
Treatment =/= Cure.
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>>8166088
>Take more drugs to balance the drugs
>Despite the dozens of scientific research papers by Psychiatric Associations outlining that's the worst possible thing you could do
This just became a NCBI thread.
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>>8166115
Modafinil is literally one of the most safe drugs there is, even US Air forces pilots use, heck even Obama uses it
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>>8166123
>approximately 5 years later
>Have you or your loved one suffered heart failure, liver failure, lymphoma or other typer of cancer after being prescribed Provigil? You may be entitled to a compensation. Time is of the essence, call our law firm now!

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