Archived threads in /sci/ - Science & Math - 100. page

depends on where you're at in life. post better puppers and i may elaborate

No one follows PBS Space Time here?

I've seen this video. The interpretation was regarded as invalid.

>>9135973
>The interpretation was regarded as invalid.
was it?

Any way, electrons moving from past to future and positrons moving from future to past seems to be accepted:

>I did not take the idea that all the electrons were the same one from [Wheeler] as seriously as I took the observation that positrons could simply be represented as electrons going from the future to the past in a back section of their world lines. That, I stole!
Feynman's Nobel acceptance speech.

>>9135792
Bump

Solid H2O, ice naturally forms a hexagonal pattern which takes up a set amount of space. Liquid water flows more freely between individual molecules of H2O and as such naturally tends to be more compact, in terms of volume, than its solid counterpart.

File: k1_g_wasser-molekuele_e_en.jpg (98KB, 950x606px) Image search: [Google]

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>>9135792
I'm not so sure about the spikes but water expands when it freezes because water is a polar molecule. So it crystallizes once it freezes. I'm sure the spikes are related to that.

Not terrible for pop sci.

>>9135718
OP

watch
https://www.youtube.com/watch?v=8ORLN_KwAgs

and then watch
https://www.youtube.com/watch?v=vSFRN-ymfgE

File: IMG_2678.jpg (2MB, 4032x3024px) Image search: [Google]

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Usually I'm like this:

-Main shit
-stuff about main shit
-more details


More math I am all over the place. Regular notes like pic relatedjust follows the format.

Handwriting is a hybrid of print and cursive

File: IMG_0158.jpg (1MB, 3264x2448px) Image search: [Google]

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>>9135667
Quite neat, I think.

not neat at all you're a faggot

fields and then particles :D

>>9135480
Crank philosophy copypasta belongs on the >>>/his/ or >>>/x/

>he adds the set containing the set containing itself to the overall set ad infinitum
it's not that hard op

>>9135497
Math belongs on /sci/. This is a science and math board.

Because no replication.
Thankfully, that's changing though.

because they are not actual sciences, its just conjectures derived from statistics, they should be called "social studies" or something similarily less misleading

>>9135478
That's not laughable at all.
They're putting in effort to replicate results.
The subfield of mathematics I'm working on involves lots of computation, so results are seldom replicated simply because they take so many CPU years.

>>9135438
Your school blows and so do your girls.

>>9135448
It's a top 40 school, but thanks

>>9135451
>>It's a top 40 school

highly ranked by employers or other eggheads and academics?

>>9135404
Read a Calc 1 book.

>>9135427
/thread

you're a faggot for inverting the colors

>>9135343
I have no medical background.

I think it's more or less commonly accepted that disease outcome depends heavily on complex interactions and on the patient's psychology. The placebo effect, for example, has been repeatedly empirically verified.

From reading the article, this particular word seems to apply to a non-theory, however.

>>9135354
This.
The biopsychosocial model considers a broader range of causes for an affection (if that'd be the correct word in english), including socio-cultural and psychological background as well as biological causes. Whereas the biomedical model, as already stated, attributes the causes solely to biological factors.
For example: A hysterical palsy can't simply be explained by biological factors alone, but the biopsychosocial model offers other possibilities, such as a traumatic event which causes a psychological effect.

>>9135244
if you're fat you're probably already retarded

>>9135244
No.

Yes a healthy body equals a healthy mind. Thats what the greeks believed and thats what logic and scientific evidence tells us today

>>9135204
Uneducated guess:

At some point in our history we started selecting for more promiscuous females (possibly for social reasons, possibly because we had the wealth of resources to make it possible to do so) and the genes or traits that govern sexuality aren't necessarily the same ones that govern ovulation

Or perhaps when marriage or other, more primitive monogamous pair-bonding practices became popular, females who had more time to build a relationship with their partner before committing to a baby fared better overall.

File: 1501091703026.jpg (84KB, 393x829px) Image search: [Google]

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>>9135204
>onset mating: 12
>me still virgin: 21
Fuck this world

>>9136394

That's the age the females would start mating. Many males would still be virgins in their 20s.

>>9135196
>>Intelligence is going to be deciphered at the molecular level, in the near future, by genomic studies with very large sample size
RACIST RESEARCH I DEMAND THIS DEFUNDED RIGHT NOW DELET THIS

15 years

China will probably be the first. they will have a couple rounds of accidental downies, but eventually they will get it right

>>9135196
I know this is just a blog post, but the quality of the writing leaves a lot to be desired. As for the question of the hereditary aspect of intelligence being deciphered soon, it's all speculation and no one can say for sure when the next big genetic discovery will be made.

>>9135174
real books can be easier to learn with

You can think of websites as mostly reference books with some very specific concepts explained in a very succinct way.
While textbooks can be either the type that is explanatory and covers most of the concepts or problem sets, neither of which is found in reference books, which merely summarize the explanations and represent them in a most accessible, memorable way.
This distinction, explanatory vs reference kind of material is the key that you seem to be missing.

>>9135174
I'm like this too, but I've gotten better at not doing it with programming. If I spent all my time trying to learn every module method and class I use I wouldn't be able to get anything done.