Science @4-ch

All things science, philosophy, natural sciences, sociology and other related academic topics are all talked about. Debates and civil arguments are also welcome.
  • Try not to forget to provide a link to any relative articles, science journals etc that may be related.
  • Keep discussion of technology and computers over at the Tech discussion board, although this rule is negotiable.
Rules · 規則
基本的には英語の使用を強く希望します。ただ日本語板の場合は日本語か英語。
Board look: Blue Moon Buun Futaba Headline Mercury Pseud0ch Toothpaste
1: CP-violation (7) 2: WAIFUCHAN.ORG IS YOUR FRIEND C: (1) 3: Bionic Eye helps the blind see low-res B&W video (4) 4: theory (9) 5: We are living in a simulation (54) 6: gaynal sex (1) 7: When will they come out with a 256 bit OS or 1024 bit CPU? (66) 8: The science of economics (pro). (8) 9: Internet, teach me math (8) 10: Earth's Magnetic Field Polarity Reversal (11) 11: [Debate] The Problem of Evil [Religion] (79) 12: Should CERN Deactivate the Large Hadron Collider? (7) 13: There are no scientific threads on this page (11) 14: Randall Museum (1) 15: Curiosity has landed on Mars! (4) 16: The "Terminator" arm on a man who lost his right arm six years ago. (2) 17: Is the Universe Finite - or Infinite (You thoughts) (50) 18: Evolution is a DIRTY LIE (117) 19: What is a specific name of this fish? (2) 20: Silicon based life, has anybody tried this? (4) 21: Psychology is a fake science (82) 22: Maximum temperature? (2) 23: What do you think of this? The disadvantage of Smarts. (5) 24: What Makes People Go Psycho? (37) 25: iPhone program enables the blind to text! (9) 26: Russian Inventor Patents Invisibility Cloak (11) 27: ((゚)Å(゚))Tokai amateur radio earthquake prediction society (10) 28: Good book for physics? (8) 29: Defuse a volcano? (15) 30: Liquid/organic circuits (14) 31: Enigmatic Marks (2) 32: Travel Through a Black Hole (19) 33: U F O (30) 34: [Theory] Quantum Mechanics Thread [Physics] (6) 35: Would you break Number Code? (3) 36: Let's think how to cure the 'baldness' (22) 37: Japanese inventor develops flying sphere drone (1) 38: Strings 2011 in Uppsala, Sweden (1) 39: Proof that God Exists (615) 40: Planetary Wind Speeds (9)

CP-violation (7)

1 Name: Anonymous Scientist : 2008-04-24 19:58 ID:pemWrSRv

ITT, we discuss CP.

2 Name: Anonymous Scientist : 2008-04-24 21:28 ID:ZOXQ0PX7

Cerebral palsy? I hear they've made great advances recently in stem cell treatment for it using umbilical cord blood.

Also I read a pretty cool autobiography by someone who has it, "I Raise my Eyes to Say Yes" by Ruth Sienkiewicz-Mercer.

3 Name: Anonymous Scientist : 2008-04-25 09:21 ID:Heaven

How exciting of a life could someone with cerebral palsy be?

Day 13,867: Well, I didn't choke to death on my own tongue today. It took me three hours to write this sentence.

4 Name: Anonymous Scientist : 2008-04-25 14:10 ID:Heaven

CP is non-progressive so it's not a primary cause of death, and if you've got it bad you can't even commit suicide.

5 Post deleted.

6 Name: Anonymous Scientist : 2008-05-01 15:57 ID:qlP68Oym

CP? u gonna get V&

7 Name: Anonymous Scientist : 2014-09-30 00:38 ID:nFtOWqlW

gooby plz

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WAIFUCHAN.ORG IS YOUR FRIEND C: (1)

1 Name: WAIFUCHAN.ORG IS YOUR FRIEND C: : 2014-09-25 04:52 ID:LEgx1wSC

WAIFUCHAN.ORG IS YOUR FRIEND C:

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Bionic Eye helps the blind see low-res B&W video (4)

2 Name: Anonymous Scientist : 2014-09-09 00:49 ID:YK7cFlej

I wackyparsed the title as "helps the blind see low-res BBW video," and thought, "Oh my God, who'd want to see that? Not even the blind!"

3 Name: Anonymous Scientist : 2014-09-09 13:48 ID:O0l6bc7a

I guess this is meant to aid those with postpartum blindness?

4 Name: Anonymous Scientist : 2014-09-10 23:16 ID:e7v3HBRZ

Having eyeballs that can record everything you see in ultra high definition and have a built in zoom function would be neat, but I'd prefer to keep the eyes I got currently.

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theory (9)

1 Name: Anonymous Scientist : 2014-04-29 00:43 ID:yGuRlGsQ

discrete calculations of 1s and 0s in transistors are not capable of harboring sapient life with free will, mental processes may emulate the calculations of computers but they must involve random quantum fluctuations for the being to be truly sapient

transferring control over civilization to electronic beings would be like genociding ourselves and creating simulations of sapient beings to replace us, it would be a huge mistake

2 Name: Quentin Winsterford!bEbcGEQx7M : 2014-04-29 06:33 ID:yGuRlGsQ

intredasting but not strictly proven, we know very little about such things

I think in generally we need to diversify the different forms of life that exist. However there is always a threat of one such form of life being vastly superior, expanding uncontrollably and eradicating all the others.

3 Name: Data of the Star Trek : 2014-05-02 05:00 ID:UJvilc7P

What about a cyborg with a human brain? Something that's mostly robot, but controlled by organics. It would be cool if they could transfer people to android type bodies like 'ghost in the shell' I'd totally sign on for that! Not sure though about getting a fully technolyzed body with only a human head though, (that wasn't explained in too great detail).

4 Name: Anonymous Scientist : 2014-05-26 04:33 ID:vxxDmb0x

are these just markov chain generations?

5 Name: Anonymous Scientist : 2014-07-28 03:25 ID:YkLPoYMJ

Is this the real life?

6 Name: Anonymous Scientist : 2014-07-29 02:59 ID:dhO12Olx

Or is this just fantasy?

7 Name: Anonymous Scientist : 2014-07-29 21:26 ID:YkLPoYMJ

Caught in a landslide,

8 Name: Anonymous Scientist : 2014-08-03 06:35 ID:/hiJmkYB

No escape from reality.

9 Name: Anonymous Scientist : 2014-09-09 00:48 ID:YkLPoYMJ

Open your eyes,

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We are living in a simulation (54)

1 Name: te-kun : 2008-04-11 22:29 ID:BePokpVk

  1. It is possible that a civilization could create a computer simulation which contains individuals with artificial intelligence.
  2. Such a civilization would likely run many—say billions—of these simulations (just for fun; for research, etc.)
  3. A simulated individual inside the simulation wouldn’t necessarily know that it’s inside a simulation—it’s just going about its daily business in what it considers to be the "real world."

Then the ultimate question is—if one accepts that theses 1, 2, and 3 are at least possible, which of the following is more likely?

a. We are the one civilization which develops AI simulations and happens not to be in one itself? Or,
b. We are one of the many (billions) of simulations that has run? (Remember point iii.)

In greater detail, his argument attempts to prove the trichotomy, that:

either

1. intelligent races will never reach a level of technology where they can run simulations of reality so detailed they can be mistaken for reality (or this is impossible in principle); or

Post too long. Click to view the whole post or the thread page.

45 Name: Anonymous Scientist : 2013-01-25 12:11 ID:RCj70ddz

>>44
If there are active measures to conceal it, of course we won't find it. That would be assuming that whatever is running the simulation cares to hide it. There's also the possibility that it wants to be discovered.

There's even a chance that whatever is "running" the simulation doesn't understand that it doing so, isn't conscious at all, or otherwise undertakes actions for entirely different reasons than we (the simulated) do.

Is the simulation hypothesis unlikely? Well, yes. That aside, it's fun to think about and doubly interesting now that's there's a way to test it.

46 Name: dude : 2013-03-29 02:22 ID:y4CuS2Dr

1 - if we don't know if we are real or simulated, we can't trust or senses.
2 - (...) -> we conclude "i think therefore i am".
3 - the only thing we are sure is that we think but not if it's artificial or not
4 - that means we have to find out what the thought is to advance any further.
5 - if thinking is processing information, then what is the program?

the answer to this is as incomprehensive as the beginning of the universe... we are infinitely smaller then the infinite and yet infinitely bigger than nothing. therefore we can't understand neither of them.

unless, of course, someone deletes our answers when we are getting close to the end but that was already said above by someone else...
either way it's pretty absurd thinking that there is another universe, and we are just a simulation, if we can't even figure out how ours was created. if we are a simulation, then who created our creators?

I think the most logical thing to do is to accept that it is impossible to understand our origin and live with it. although it also means that live has no reason...

47 Name: Anonymous Scientist : 2013-09-20 07:17 ID:1WZB0TEP

>>46
Life does have a reason beyond it's origins. It doesn't have to be religious, or anything like that. You can simply live in a way that either pleases yourself or that pleases those around you. We may be a simulation, but that doesn't mean that while we're in here we can't let ourselves fall into being human. We can still be what we were programmed to be.

An argument I heard once for this being a simulation, is when you would go about programming a simulation, in order to make finding the results you want easier, the programmers would set some rules/limits that can't be broken to reduce the randomness of the events that happen. (Speed of Light anyone?)

48 Name: Anonymous Scientist : 2013-09-23 12:39 ID:fm5N7XnS

>>47
I've also heard that absolute cold is a similar limit that reinforces this theory.

49 Name: Anonymous Scientist : 2014-02-11 09:59 ID:h9UxQzlD

>>47
Without a constant speed of light, there's no grounds for relativistic weirdness in physics. I'm not sure what exactly becomes more convenient with this added constraint -- maybe out of bounds problems?

>>48
Well, temperature is something of a bulk property. It involves groups of particles, rather than single bodies, atoms, or molecules.
0 K can't be found in this universe because even a single cold proton is subject to gravitational and EM influence from the surrounding entire universe. That universe will nudge the particle about, warming it.

Both of these apparent boundaries seem to cause, or at least emphasize, rather than inhibit, new phenomena.

50 Name: Anonymous Scientist : 2014-03-30 08:26 ID:sfxEy1Nu

It seems to me that any accurate, large scale universe simulation is impossible as a matter of principle. The amount of energy it would take to run, having to simulate every particle in the universe realistically and simultaneously for trillions of years, would be as much or nearly as much energy/matter as there is in the universe. Otherwise the creation of such a simulation would violate things like the law of the conservation of energy in thermodynamics. So that the universe exists at all means that there is no simulation being run, meaning that if any "ancestor" universe exists it also cannot simultaneously exist AND run "our" universe, but we exist so it can't exist, or at least we are not a simulation.

51 Name: Anonymous Scientist : 2014-04-24 12:16 ID:C6kUYNww

>>50
We're talking about another universe you doofus. It may have way more energy available than ours.

52 Name: Anonymous Scientist : 2014-08-04 21:29 ID:qg8wXBwD

>>50

Why would it necessarily need to be a large-scale simulation? If one wanted to study something specific (the evolution of societies) and one could run a realistic enough simulation of -that-, one presumably would only need to give the appearance of their being something more out there in the universe (esp. if one wanted the conditions to be similar to one's own universe in order to simulate something like one's own civilization).

53 Name: Anonymous Scientist : 2014-08-06 05:54 ID:2bV08xMZ

"Cogito ergo sum" - "I think therefore I am"
And since I exist, I am assuming everybody else exist as well.

54 Name: Scientist of Love : 2014-09-08 03:45 ID:BHaKTuW0

My brain isn't simulating, it's STIMULATING.

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gaynal sex (1)

1 Name: Anonymous Scientist : 2014-08-21 00:05 ID:BqmGl1Of

gaynal sex

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When will they come out with a 256 bit OS or 1024 bit CPU? (66)

1 Name: Anonymous Scientist : 2008-08-06 07:47 ID:eXui/RyR

So how long do you think it will be before such technoloogy is widely availble to the public?
10 years? Maybe 25?

57 Name: Anonymous Scientist : 2013-03-26 03:15 ID:Heaven

>>56
s/640/10120/

58 Name: Anonymous Scientist : 2013-10-03 21:13 ID:Nzcs6YYK

>>55
Proof that if you are going to fail, you might as well fail superlatively.

59 Name: Anonymous Scientist : 2013-11-11 01:31 ID:Heaven

>>57
if 10120 bits is enough for the whole universe, then it definitely should be enough for anyone.

60 Name: original poster : 2014-01-14 22:59 ID:uQRonXMy

This probably should have been posted to the tech board rather than here. Would it be possible for a moderator to move it?

61 Name: Anonymous Scientist : 2014-01-28 05:51 ID:Heaven

>>60
this thread has been on this board for about 5.5 years. why move it now?

62 Name: atom : 2014-06-20 07:39 ID:AtBBl8va

hey if you get satisfied with this how can you be called science lover .

there is no certanity that homo sapiens want more than they got in every field if they want more if they want to store their memories in full hd from their mind to hard disk where is the problem real track deployment videography should be an alternative

63 Name: Anonymous Scientist : 2014-07-03 17:12 ID:S0Vcz3Lt

>>59
Except an atom is not the smallest unit, so that's as arbitrary as saying "the universe is made out of 2 halves, so 2 bits should be enough for everyone!"

64 Name: Anonymous Scientist : 2014-07-11 00:20 ID:D2eP3OXa

I think it would be separated that the PCs for citizen and the PCs for (Technical) Workers.
People not need such a High Speck Computers for their daily laisures.

65 Name: Anonymous Scientist : 2014-07-20 08:29 ID:wOQYAa8S

It can be required the thread for this board?

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The science of economics (pro). (8)

1 Name: Percival!kH5oK7qo82 : 2014-05-01 06:34 ID:QoHhvuSp

Thread for those who are inclined to research and learn about the economy of this civilization we find ourselves born into. Principally the stock market.

2 Name: Percival!kH5oK7qo82 : 2014-05-01 08:16 ID:QoHhvuSp

Yelp Inc. (YELP) has successfully grown to dominate a niche on the internet, a cross between the yellow pages and social networking.

2013 was a major bull market but tech appears to have stalled somewhat. It is feasible there may still be growth for tech stocks like YELP, some basic research on YELP is a good place to start this thread, it shows some of the resources I use for looking up basic info on a company.

http://en.wikipedia.org/wiki/Yelp,_Inc.

latest annual report (10-K)

http://www.nasdaq.com/symbol/yelp/sec-filings

http://finance.yahoo.com/q/ks?s=YELP+Key+Statistics

http://finance.yahoo.com/echarts?s=YELP+Interactive#symbol=YELP;range=2y

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3 Name: Pablo : 2014-05-02 16:17 ID:9Zkvxc3I

So, what is this?

4 Name: Percival!kH5oK7qo82 : 2014-05-02 16:20 ID:QoHhvuSp

>>3
This is a forum to discuss science is it not? And what more utilitarian science is there than the science of obtaining capital?

5 Name: Percival!kH5oK7qo82 : 2014-05-10 05:53 ID:QoHhvuSp

In March and April the tech sector stalled and many bubbles burst, this may have dragged down a few innocent companies with it, that may now be excessively undervalued and bounce when investors realize the error.

FEYE is a possibility, also GOOGL. I've had a little looke at FEYE prompted by a thread in /biz/ that may still be up

http://boards.4chan.org/biz/thread/325820/investments-general

http://www.cnbc.com/id/101652513

> David DeWalt, FireEye chairman and CEO, says he's focused on growing the business and discusses how the market digested the company's quarterly numbers.
> DeWalt's optimism didn't satisfy Brian Kelly of Brian Kelly Capital who had recently sold a losing position in FireEye.

Who is right?

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6 Name: Percival!kH5oK7qo82 : 2014-05-10 06:57 ID:QoHhvuSp

> FireEye Reports Financial Results for First Quarter 2014

http://www.sec.gov/Archives/edgar/data/1370880/000119312514184813/d722841dex991.htm

7 Name: Percival!6ytVDvPN/E : 2014-06-22 00:42 ID:ap1OkolF

>>31450070
I use it to gain power in general, power gives you more options whatever your motivations. You might want to become biologically immortal, you might want to help alleviate suffering, but you can't do any of this without wealth or power.

Knowledge is useless if not wielded by the wise, and I am aware there is more to it than that. There is a kind of information economy, you need information about information to determine the chances of it being useful in the practical sense which presents an interesting dilemma, since now you also need information about information about information about information, there are some parallels with calculus, this sounds like borderline autism but I am not obsessed with this or anything, it is just an observation I have made, when it gets to this point I usually just rely on good old human common sense and approximations to make the best decision. For instance if I am looking up penny stocks and I come across a dodgy company dumping millions of shares on the market with red flags everywhere when I go to their site, I know there is no longer much point in me spending more time on this, I go to the next one. If I next find a biotech startup and there are no red flags I have to decide whether it is worth trying to understand the drug they are trying to develop myself, I have to try and determine how long it would take and the opportunity cost of spending time on it or researching more companies. Through these means I can figure out how to make reasonably effective use of my time, how to valuate companies, risk and returns and the opportunity cost of various options.

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8 Name: Anonymous Scientist : 2014-07-27 08:17 ID:WnTlBeHM

What if I told you that economics is a pseudoscience, and that all the phenomena you're trying to model in such painstaking detail are random chaotic herd behavior?

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Internet, teach me math (8)

1 Name: Anonymous Scientist : 2013-04-06 12:35 ID:uq2x6m9z

I'm a cock sucking retarded mouth breather, where do I go to learn caclus and shit?
Waht's th SICP of math? What would you recommend, besides killing myself. I already know about khanacademy.

Any advice?

2 Name: Anonymous Scientist : 2013-04-06 12:35 ID:uq2x6m9z

bump

3 Name: Anonymous Scientist : 2013-04-06 12:36 ID:uq2x6m9z

Btw I'm not learning lisp or reading SICP.

4 Name: Anonymous Scientist : 2013-04-06 12:37 ID:uq2x6m9z

bump

5 Name: Anonymous Scientist : 2013-05-14 18:47 ID:bLgFb7D7

Try sosmath.com

6 Name: Anonymous Scientist : 2013-10-13 21:37 ID:a2NRFUas

>>1
Try Khan Academy, d00d. From pre-algebra all the way up through calculus. Khan is the Man. It's free, too--free as in beer, as well as in speech.

7 Name: maths thread : 2013-10-14 18:42 ID:UvAV55ba

8 Post deleted.

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Earth's Magnetic Field Polarity Reversal (11)

1 Name: Sling!XD/uSlingU : 2006-05-13 13:38 ID:Heaven

http://www.allheadlinenews.com/articles/7003537762
"The ships logs from the voyages of Captain Cook have yielded a new discovery: the gradual weakening of Earth’s magnetic field is a relatively recent phenomenon. The discovery has led experts to question whether the Earth is on track towards a polarity reversal."

"The field’s strength is now declining at a rate that suggests it could virtually disappear in about 2000 years. Researchers have speculated that this ongoing change may be the prelude to a magnetic reversal, during which the north and south magnetic pole swap places."

2 Name: Anonymous Scientist : 2006-05-14 22:05 ID:Heaven

It happened before and it'll happen again.

3 Name: Sling!XD/uSlingU : 2006-05-14 23:10 ID:H4KHJW1C

I read Slashdot's take on it http://science.slashdot.org/article.pl?sid=06/05/13/1516234 and I thought they were awfully calm about it.
Wouldn't such an event create total chaos?

4 Name: Anonymous Scientist : 2006-05-16 00:15 ID:Cpbm/F1x

from Wikipedia:

Since a magnetic field reversal has never been observed by humans and the mechanism of field generation is not well understood, it is difficult to say what the characteristics of the magnetic field might be leading up to such a reversal. Some speculate that a greatly diminished magnetic field during a reversal period will expose the surface of the earth to a substantial and potentially damaging increase in cosmic radiation. However, Homo erectus and their ancestors certainly survived many previous reversals. There is no uncontested evidence that a magnetic field reversal has ever caused any biological extinctions. A possible explanation is that the solar wind may induce a sufficient magnetic field in the Earth's ionosphere to shield energetic particles even in the absence of the Earth's normal magnetic field [1].

5 Name: Sling!XD/uSlingU : 2006-05-16 00:48 ID:H4KHJW1C

I see.

http://en.wikipedia.org/wiki/Geomagnetic_reversal says
"Although the inspection of past reversals does not indicate biological extinctions, present society with its reliance of electricity and electromagnetic effects (e.g. radio, satellite communications) may be vulnerable to technological diruptions in the event of a full field reversal."

"may be"? So nobody knows what would happen? Or is it about the magnitude of a solar flare, i.e. not very serious?

6 Name: !WAHa.06x36 : 2006-05-16 14:15 ID:lhQLjQnd

The mechanism generating the Earth's magnetic field itself is not well understood, so nobody knows exactly what happens during a pole reversal. Electric and electronic equipment would probably be more sensitive to fluctuations of the field rather than the absence of a field. Lacking any information of what kind of fluctuations to expect, there's really no way to know what the effects would be.

7 Name: Alexander!DxY0NCwFJg : 2006-05-17 18:06 ID:htJGLRru

I hope everyone will be ok except for the Earth turning into a global Van de Graaff generator. It would be both a potential extinction event and a new trend in fashion.

8 Name: Sling!XD/uSlingU : 2006-05-18 12:51 ID:H4KHJW1C

>turning into a global Van de Graaff generator.

That would open the door to Free Energy, at long last! :)

9 Name: issokuta : 2013-09-21 06:01 ID:YYNx2t94

10 Name: issokuta : 2013-09-21 06:03 ID:YYNx2t94

11 Name: issokuta : 2013-09-21 07:34 ID:YYNx2t94

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