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/sci/ - Science & Math


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File: 94 KB, 500x400, (((Time Machine))).jpg [View same] [iqdb] [saucenao] [google] [report]
8774985 No.8774985 [Reply] [Original] [archived.moe]

Alright ya noobs, I'm settling this time travel hoax once and for all.

First and foremost: Time is an arbitrary notation created by man. If the whole concept were to die out, none of our maths would be any different. All you're giving meaning to is MOTION. Same with energy, there is no such thing, just different forms of motion. Kinetic energy is a pleonasm.

Now back to time. How the FUCK would you translate said arbitrary time notation to a machine somehow connected to space-"time"?
Pro tip: You can't.

Unless you manage to install a framework in the universe with a functional API it's not happening. Yes, mass and speed (same thing) slow down motion but that's it. You can slow down your RELATIVE MOTION as opposed to others but that's not time travel. There's no destination as defined by con-artists getting grant money for fake/stupid study and spend it on booze and cocaine (like my money).

Get over it. There's no such thing as fucking time travel. Niggers.



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8774955 No.8774955 [Reply] [Original] [archived.moe]

>It doesn't mean anything it's only Saturn
All the other stuff in Revelations 12 is happening (will provide pic after I post this) and it's is in the Virgo constellation near where Jupiter (the baby) will exit it. And it also does some what look like a dragon.

It is also the Red Dragon
>B-But it's not red it's just a filter you can make it any color
But you can only see it with infraRED cameras.

Also on 12/23/16 9 months before 9/23/17 this happend https://theintercept.com/2016/12/23/obama-allows-toothless-un-resolution-against-israeli-settlements-to-pass/
also 9 months is how long Jupiter is going to be in Virgo and you know how long it takes a baby to be born... 9 months

Revelations 12

A great sign appeared in heaven: a woman clothed with the sun, with the moon under her feet and a crown of twelve stars on her head. 2 She was pregnant and cried out in pain as she was about to give birth. 3 Then another sign appeared in heaven: an enormous red dragon with seven heads and ten horns and seven crowns on its heads. 4 Its tail swept a third of the stars out of the sky and flung them to the earth. The dragon stood in front of the woman who was about to give birth, so that it might devour her child the moment he was born.

More weird stuff on that date: https://www.youtube.com/watch?v=xn_l2yS6H2o

>> No.8774956
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8774956

>>8774955

>> No.8774957

>All the other stuff in Revelations 12 is happening
No it isn't. You're some 1900 years too late bucko.

>> No.8774960
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8774960

>>8774957
see
>>8774956



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8774951 No.8774951 [Reply] [Original] [archived.moe]

Why is Haskell a superior language? Why are boot camp and web devs scared of it?

>> No.8774979

>>8774951
/g/



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8774921 No.8774921 [Reply] [Original] [archived.moe]

What would happen if you jerked off in space

>> No.8774924

There would be jizz but it would float i guess

>> No.8774946

"Houston, we have a problem."

>> No.8774948

>>8774921
You would accelerate on the opposite direction of course



File: 4 KB, 183x275, brainlet.png [View same] [iqdb] [saucenao] [google] [report]
8774885 No.8774885 [Reply] [Original] [archived.moe]

Shit brainlets say:

I'll start
>everyone has an ideology, science is an ideology,
>you BELIVE in science.
>diversity is natural and not a political doctrine.
>communism wasnt ever tried properly
>in the future we will all be mixed race, half-cast.
>overpopulation is inevitable
>because of overpopulation, we will face starvation, so white people should stop having babies, we cant stop the third world, because THAT would be racist.
>im pro abortion, afterall the baby is a parasite and its MY body.

9 replies omitted. Click Reply to view.
>> No.8774959

>>8774918
>It's a conspiracy!
Kill yourself /pol/nigger.

>> No.8774966
File: 68 KB, 850x565, 170323141403_1_900x600.jpg [View same] [iqdb] [saucenao] [google] [report]
8774966

Johns Hopkins Kimmel Cancer Center scientists report data from a new study providing evidence that random, unpredictable DNA copying "mistakes" account for nearly two-thirds of the mutations that cause cancer. Their research is grounded on a novel mathematical model based on DNA sequencing and epidemiologic data from around the world.

"It is well-known that we must avoid environmental factors such as smoking to decrease our risk of getting cancer. But it is not as well-known that each time a normal cell divides and copies its DNA to produce two new cells, it makes multiple mistakes," says Cristian Tomasetti, Ph.D., assistant professor of biostatistics at the Johns Hopkins Kimmel Cancer Center and the Johns Hopkins Bloomberg School of Public Health. "These copying mistakes are a potent source of cancer mutations that historically have been scientifically undervalued, and this new work provides the first estimate of the fraction of mutations caused by these mistakes."

"We need to continue to encourage people to avoid environmental agents and lifestyles that increase their risk of developing cancer mutations. However, many people will still develop cancers due to these random DNA copying errors, and better methods to detect all cancers earlier, while they are still curable, are urgently needed," says Bert Vogelstein, M.D., co-director of the Ludwig Center at the Johns Hopkins Kimmel Cancer Center.

Tomasetti and Vogelstein conducted the new study described in a report published March 24 in the journal Science.


https://www.sciencedaily.com/releases/2017/03/170323141403.htm

>> No.8774973
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8774973

New work from a team including Carnegie's Guoyin Shen and Yoshio Kono used high pressure and temperature to reveal a kind of "structural memory" in samples of the metal bismuth, a discovery with great electrical engineering potential.

Bismuth is a historically interesting element for scientists, as a number of important discoveries in the metal physics world were made while studying it, including important observations about the effect of magnetic fields on electrical conductivity.

Bismuth has a number of phases. A chemical phase is a distinctive configuration of the molecules that make up a substance. Water freezing into ice or boiling into steam are examples of how changes in external conditions can induce a transition from one phase to another. But for physicists and materials scientists, application of extreme pressures and temperatures can bring about a large variety of other phases. For example, under increasing pressure and temperature conditions bismuth undergoes an array of phase transitions, including eight different types of solid phases observed so far.

In previous studies of bismuth, pressure-induced structural changes were not retained when the pressure was reduced. However, the research team -- which included lead author Yu Shu and colleagues Dongli Yu, Wentao Hu, Bo Xu, Julong He, and Zhongyuan Liu of Yanshan University, and Yanbin Wang of University of Chicago -- used a pathway of successive pressure and temperature conditions to create a form of bismuth that has a "structural memory" of a previous phase.

https://www.sciencedaily.com/releases/2017/03/170314081621.htm

>> No.8774974

>>8774922
It wasnt op that said that.

Now can we just have a brainlet rage dump thread without trying to one up eachother for cheap emotional kicks.

>> No.8774978
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8774978

>>8774966
>Thread is shit; Hijacking it
>>8774907
>>8774908

Just one guy tring to hijack a thread on his own. How sad.



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8774874 No.8774874 [Reply] [Original] [archived.moe]

Is it safe to use this as mouthwash?

>> No.8774876

>>8774874
yes

>> No.8774891

>>8774874
What the fuck. The day after I find out about this I see it on /sci/. Fucking eerie. Apparently it's really effective anon. See this post on longecity: http://www.longecity.org/forum/topic/74225-flossing-may-be-harmful-or-at-least-useless/?view=findpost&p=753121

Apparently it's some kind of miracle mouthwash.

>> No.8774900

>>8774891
haha i know that feel.

Is it carcinogenic, though?

>> No.8774920

>>8774900
Try google/google scholar.



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8774873 No.8774873 [Reply] [Original] [archived.moe]

*blocks your path integral*

1 replies omitted. Click Reply to view.
>> No.8774888

>>8774877
>doesn't know what a path integral is

>> No.8774896

>>8774873
*unblocks your path back to >>>/s4s/ *

>> No.8774899

I wonder if he's given up on string theory by now. Anyone know?

>> No.8774923
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8774923

*wipes residue from his pole*

>> No.8774927
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8774927

*knocks alphabet soup out of your hand*



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8774862 No.8774862 [Reply] [Original] [archived.moe]

How can evolution be a fact when scientists have not observed a prehistoric crustacean evolve into a human? Isn't evolution more of a belief where you just have to have faith on the scientists hoping they're right with their hypotheses?

So exactly how different is that compared to believing in God and creationism?

>> No.8774866

>>8774862
there isn't fossil evidence of creationism

>> No.8774872

>>8774862
>How can evolution be a fact
Antibiotic resistance is a direct observation of evolution

This b8 threads are getting more retarded by the day

>> No.8774875

>>8774862
You do always have to have faith on scientific theories (except math where knowledge is a priori and not heuristic).
It's different in believing in God because scientific theories make predictions on the outcome of experiments, so it is possible to falsify them.

>> No.8774947

>>8774862
>So exactly how different is that compared to believing in God and creationism?
Belief is equally thoughtless, regardless of science-religion or god-religion. Science is merely one possible model for Reality. In ignorance, they reject all other theories but what their ego makes them believe.



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8774829 No.8774829 [Reply] [Original] [archived.moe]

Oddest quaternion utilisation ? Think of anything except basic 3 dimensional space rotations

1 replies omitted. Click Reply to view.
>> No.8774884

>>8774860
(Reference + amount) angle ..?

>> No.8774903

>>8774860
3d or 2d?

So(3) for the latter so(2) for the former.

>> No.8774909

>>8774903
Depends on the shift angle you're doing

>> No.8774932

>>8774860
>>8774903
How does this try to answear the thread ?

>> No.8774943

>>8774903
>Assuming Euclidean spaces
Pleb much?



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8774825 No.8774825 [Reply] [Original] [archived.moe]

Maths and physics books for beginners?

>> No.8774834
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8774834

>> No.8774838

>>8774834
Do you recommend me to start with number theory?

>> No.8774839
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8774839

>> No.8774846

>>8774839
Fuck off



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8774820 No.8774820 [Reply] [Original] [archived.moe]

>life originated in the sea
>then there are sea animals, which stayed in the sea, and ground animals, who came out of the sea, and amphibians who are weirdos anyway

But how the fuck do you explain flying animals like most birds? How do you "evolve" to that? You jump a lot until your great-great-great-great-grandson ends up flying?

14 replies omitted. Click Reply to view.
>> No.8774894

>>8774887
>>8774890
You are boring.

>> No.8774912

>>8774894
Nice fossil record evidence. Mind Blown.

>> No.8774916

>>8774820
Modern evolution theory is completely retarded.

>> No.8774919

>>8774886
>Some theists
why when someone doubts the silly "evolution dunnit, dont ask" umbrella theory you people assume its a "theist"?

>> No.8774928

>>8774919
Yep, the same sort of fascist mentality that the scientific method was developed to combat. This is how religions are formed. We are heritics for pointing out the gaping holes of the theory and asking for supporting evidence.



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8774782 No.8774782 [Reply] [Original] [archived.moe]

Considering a Bachelor's degree in Physics because I found Physics 101 to be incredibly interesting.

Is there anything for me in this field if I'm not incredibly strong at mathematics? Is strength in mathematics something that can be reasonably developed? Should I go for something else?

2 replies omitted. Click Reply to view.
>> No.8774808

>>8774787
What sort of work would applied physics look like, research?

There's parts of math that I struggle with and parts that I find a breeze; I don't know why but radicals have always given me trouble. Actual algebra is fun.

>> No.8774811

>>8774807
Understanding and applying basic formulas like ohms law or conservation of energy is incredibly easy and fun. Sitting down and doing stuff with just numbers can't hold my interest; I am an actual idiot.

>> No.8774815

How did you find Calc I (or II), OP? I'm assuming you took one or both concurrently with Phys 101?

>> No.8774819

>>8774815
I find Calc very fun. I haven't touched Calc II yet or anything further like differential or linear EQ.

>> No.8774889

>>8774811
up until grad school being an idiot is a choice



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8774731 No.8774731 [Reply] [Original] [archived.moe]

Daily remember that IQ is a meme and is not an accurate measure for intelligence. Stop posting about your IQ.

12 replies omitted. Click Reply to view.
>> No.8774950

It really makes me sad to see /sci/ has turned into /b/

>> No.8774968

>B-b-but IQ doesn't measure intelligence!!!!
>I-it only measures critical thinking ability, pattern recognition, and everything else that makes a person intelligent!!!

>> No.8774972

>>8774763
>he still thinks IQ tests aren't simply a measure of training and preparation

>>8774789
>a LISP script with two modules written in C scores in the 75th percentile of one of the most popular IQ tests
http://www.qrg.northwestern.edu/papers/Files/QRG_Dist_Files/QRG_2010/Lovett_CogSci10_Ravens_Final.pdf

What's its future income going to be, I wonder?

>> No.8774976

>>8774740
IQ are literally figures. It's entirely different than understanding mathematical statements.

There's a correlation because math-inclined people tends to like this sort of stuff.

>> No.8774981

>>8774731
>Shit brainlets say



File: 648 KB, 1800x3100, 1342916152454.png [View same] [iqdb] [saucenao] [google] [report]
8774709 No.8774709 [Reply] [Original] [archived.moe]

What future technology makes you the most excited and feeling like "I cant wait until we have this"?

6 replies omitted. Click Reply to view.
>> No.8774926

>>8774742
>I like to see these past predictions for the future and see what they got right or wrong.
Well, if you take a look at the original Star Trek, they predicted the cell phone, for example
but, they were still hand-held phones with no digital display
and the series took place in the 2200's

>> No.8774933

>>8774926
Back pack radios already existed, this wasnt 'visionary'.

>> No.8774939

Anyone else feel kind of cynical about how things are shaping out?

I am no luddite but shit like Reputation Economy stuff and automaton is really getting to me.

>> No.8774963

Virtual Reality that extracts memories from the brain and recreates and enhances them. Could live my whole life there, "real" life doesnt mean shit anyways.

>> No.8774964

>>8774939
>Reputation Economy stuff and automaton is really getting to me.
why?



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8774683 No.8774683 [DELETED]  [Reply] [Original] [archived.moe]

>In other news, Science now proves that Trump is a compulsive lying incompetent narcissistic fascist and his supporters are all idiots

3 replies omitted. Click Reply to view.
>> No.8774777

>>8774683
Do not feed. Report, hide and move on.

>> No.8774779
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8774779

>science proves
>proves

>> No.8774784

>>8774779
>this a trump troll
>a trump troll

>> No.8774794

Just when I start to think these irrational tranny kikes cant get any more childish and ignorant.

>> No.8774836

>>8774724
>completely miss the point of crazy made up headlines

You're really this dumb, huh? I'll explain, they're crazy and exaggerated because Scientific American has been publishing this kind of pseudo-scientific social science bullshit. It's also making fun of the bullshit maneuver of using the word "Science" in the headline to make the article seem totally irrefutable. Essentially living off the certainty of the hard sciences to pretend that social science bullshit articles are actually meant to be taken seriously.

>>8774762
Go project somewhere, may I suggest a local trump riot?



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8774668 No.8774668 [Reply] [Original] [archived.moe]

What are some good science blogs /sci/ that isn't about space and astronomy?

Pop sci trash LEAVE

>> No.8774671

>>8774668
Not a blog, but the PBS Spacetime channel has some videos on topics that aren't space or astronomy. Its a good channel, I'd recommend it

>> No.8774706

Meet the Mequanics is good if you're into quantum information



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8774652 No.8774652 [Reply] [Original] [archived.moe]

Hi! Are you good with combinatory?
We have 5 elements that cant be repeated:
1, 2, 3, 4 and 5
We need to know the combinations of this elements but there are 2 sets and the sets cant be repeated neither with other set with same elements. One sets has n elements and the other the rest of elements.
For example, with n = 2:
Set A | Set B
1 2 | 3 4 5 <- VALID

1 3 | 2 4 5 <- VALID
1 3 | 4 2 5 <- INVALID (same combination)
3 1 | 5 2 4 <- INVALID (same combination)

So there is a dependency between A and B and the "inside" elements of A and B.
Is this even possible to resolve with Maths?

>> No.8774962

I'm not sure i understand what you are saying but it seems to me that you just want to use the binomial coefficient, so in your case 5!/(n!(5-n)!)



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8774588 No.8774588 [Reply] [Original] [archived.moe]

If I wanted to study biochemistry, should I major in biology or chemistry?

3 replies omitted. Click Reply to view.
>> No.8774658

>>8774588
Biochemistry. The upside is that you can always fall back on industrial chemistry labs if the going gets rough because HR just sees "chemistry" in the major title.

>> No.8774710

>>8774588
Just to be clear, biochemistry is not a mix of biology and chemistry, it's it own subject. You won't really gain much understanding of either biology or chemistry from it

>> No.8774722

The problem is that biochemistry is not available as a degree where I live and these are my closest options

>> No.8774795

>>8774722
does your school have biology with a focus on cellular biology, genetics, anything like that? Because that's the closest you'll get to biochemistry probably. Chemistry is very different from biochemistry so you won't have much overlap

>> No.8774958

>>8774722

Biology in my school focused on biochemistry, genetics and microbiology. I've searched for information about both degrees and I've seen that biochemistry is present in both as a subject.

In the degree in biology there are subjects related to cytology and genetics while in chemistry there is organic chemistry.



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8774549 No.8774549 [Reply] [Original] [archived.moe]

Would a steel bar or a steel bar of the same size covered in rubber be more impactful/ inflict more damage?

Why?

>> No.8774555

>>8774549
The steel bar would. Depending on the rubber the rubber will absorb some of the impact

>> No.8774608
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8774608

>>8774549
Depends on what it's hitting/what velocity.


The coefficient of friction from the rubber has the possibility of interacting with something more violently as it slows from ridiculously high speeds.

Although if they are the same dimensions like you mention, the mass of the rubber covered will he lower, so in some applications, the extra momentum could cause more damage depending on the target.


You also have to take into account what the metric of "damage" takes into account, which also coincides with what the target actually is.



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8774547 No.8774547 [Reply] [Original] [archived.moe]

Y'all ready for this?

10 replies omitted. Click Reply to view.
>> No.8774667

>>8774654
>yfw Musk unveils an autonomous rocketdrone horde that will colonize the Solar System inside and out, surroundings included

>> No.8774677

>>8774642
>implying the first person on Mars won't be a stronk independent black non-binary trans otherkin muslim amputee.

>> No.8774705

>>8774584
lol earthfag

>> No.8774712

>>8774547
>2017
>born on earth
low tier plebs

>> No.8774755

>>8774705
>>8774712
Press F for the 300,000 mobile infantry troopers lost on Klendathu



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