Archived threads in /sci/ - Science & Math - 1713. page

>>8040374
sqrt(sumx^2 + sumy^2)

>>8040387
Nothing to do with u or v axis right?

>>8040374
>Force expressed in pounds
Americans are fucking cancer.

altavista.com

>>8040348

As I said. Lots of different websites claim spinach and quinoa are acid forming and alkaline forming. So who is correct?

>>8040346
Spinach I saw to be rather acidic, this could be due to the presence of oxalic acid. But the camps really seem to be divided on wether quinoa is alkalinic.
Then again I imagine that for both cases it heavily depends on where it was grown (soil conditions), method of preservation, transportation, humitidy etc.
Interesting question though!

>>8040234
I take notes to get rid of the unnecessary bullshit around a topic so that all the things I actually need to remember are in one place. I then focus on rereading the notes/doing problems until I have it all remembered.

1: understand the material
2: distil the parts that need to be memorised and note them down
3: do problems/review notes

simple really

>>8040234
>just memorizing everything
If you have that kind of memory capacity, you don't need to take notes at all. Welcome to the non-brainlet master race.

>>8040234
Why take notes, its redundant. Pay attention and make sure you understand the topic. And just copy notes of someone else....

Stop caring what people you don't know think.about you.

>>8040199
its not that easy for some people.

>>8040196
in my experience, it doesn't get better. Rehearsing hypothetical conversations is a waste of time. The best way I've found is to weigh the best-case versus worst-case realistic scenarios I can think of. In particular, in a classroom setting, either I make an ass of myself by answering a question wrong as hell (or I embarrass someone else by answering a question correctly). That's survivable. Best case? I don't have to talk to anyone I don't already know.

I know this only really works because my anxiety is mild as shit, but it DOES work.

lerning calculus.

>>8040193
fapping to chinese cartoon girls

>>8040193
Isn't it just gonna hit California?

>science is the study of reality.
>and reality is sexist, among other things.
you've got a little bit of the is-ought problem there, m88

the problem with that column wasn't that it attacked Feynman's character, but rather that it was just one long shitpost, with little to no actual point. quality standards indeed.

Feynman was a biological realist.
Only SJW social pseudo-science types think biological realism and statistical realities are "sexist"; he never stated he thought women were inferior to men, he thought they were less into science, math, etc.
And that is factually true.
The sexes evolved different interests.
This is backed by statistical analysis.

File: hqdefault.jpg (8KB, 480x360px) Image search: [Google]

8KB, 480x360px

>>8040289
>Why yes I am a sex-realist
>Why yes I am a race-realist

>>8040034
physical chemistry

>>8040034

just off the top of my head:
chemical kinetics
modelling various chemical systems
reaction mechanisms

>>8040125
>chemical kinetics
explosives, then?

>>8039955
>it's a "layman tries to get an intuitive understanding of quantum mechanics" episode
oh

>>8039968
>Layman who doesn't know makes fun of a layman who wants to know.
A behavior as old as mankind itself.

>>8039971
I have no interest in QM but if I did I'd go and read a book on it instead of making shit up after reading the wikipedia page.

But that would be too illogical for you.

>>8039938
Who the fuck cares about the name?

They never should have had the survey in the first place, whoever came up with that idea wasn't considering what would happen.

If they wanted to gain public support or whatever they should have given the survey to local elementary schools or something like that, have kids write an essay on what they think the name should be, the kids then tell their parents and it'll be good, some nice name

they should just name it whatever they want, nobody will remember or care in a month

>>8039938

Social media is the downfall of humanity.

>>8040028
Yes, thank you.

>>8039857
Ingest some nerve gas

>>8039857
>Scopolamine

what in the fucking fuck are you talking about? get the shit out and do some research you don't know anything. Get your fucking tabloid bullshit out of here.

>>8039857
From what I understand if someone gets that stuff on you you're pretty much fucked. Advice is to not get too close to strangers if they're asking for directions or something like that. I don't know how effective that advice is, though.

Could they? Yes.
Will they? The odds are against them.
There are skydivers who have survived failing chutes, but that's considered a goddamn miracle when it happens.

>>8039683
Is your terminal velocity superior to mach 1 ? You've got yourself an answer.

>>8039691
Well, were talking about a theoretical human being whose body is durable enough to survive being slammed into concrete at mach 1 from about 10 feet with almost no damage. A human can't reach that kind of terminal velocity. So does this mean you could drop them from 10 miles and they'd be ok?

>>8039667
oh indecision...

why can't youu work yourself out?

I'm sleepy now, time for bed.

>>8039678
Partly because all of this has blown up over the last couple weeks, faster than I can comprehend it all. Also partly because the research I'm doing goes waayy beyond the scope of mechanical engineering and I'm curious what else is out there.

My goal in life is to work on as much awesome technology as possible, and I'm trying to figure out the most effective way to do that.

>>8039682
I was trying to be clever but I guess it didn't work.

Big decisions involving a lot of outside influence and future plans often can leave you at a standstill wondering what could happen. Fortunately, life isn't exactly like ME and you can't live it the most efficient way. If you take your degree now and get a job, who knows where that will take you. If you keep going to school, you could end up teaching or with another job which will take you to who knows what. Take it with a grain of salt, which is hard considering it's your future. If you make a decision and stick with it you will realize it was the right one.

>>8039567

Vegetation increased in Europe because people decided it maybe wasn't the best idea to cut down all their forests and not plant any more trees. I don't know what other point you're trying to make.

>>8039582
http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate3004.html
>Factorial simulations with multiple global ecosystem models suggest that CO2 fertilization effects explain 70% of the observed greening trend, followed by nitrogen deposition (9%), climate change (8%) and land cover change (LCC) (4%).

95% of a tree's bulk is just comes from CO2 absorbed from the air. They're like crystals in a way; its fascinating

The best solution for curbing CO2 content in the atmosphere is to start farming genetically engineered super-algae en-masse and then pulverizing/harvesting it to make fresh, clean crude oil (that has far less pollutants) for our gas energy needs.
Too bad regular crude oil got so cheap and killed all interest in the idea

>Abstract

>Acute and chronic alcohol exposure significantly affect behavior but the underlying neurobiological mechanisms are still poorly understood. Here, we used functional connectivity density (FCD) mapping to study alcohol-related changes in resting brain activity and their association with behavior. Heavy drinkers (HD, N=16, 16 males) and normal controls (NM, N=24, 14 males) were tested after placebo and after acute alcohol administration. Group comparisons showed that NM had higher FCD in visual and prefrontal cortices, default mode network regions and thalamus, while HD had higher FCD in cerebellum. Acute alcohol significantly increased FCD within the thalamus, impaired cognitive and motor functions, and affected self-reports of mood/drug effects in both groups. Partial least squares regression showed that alcohol-induced changes in mood/drug effects were associated with changes in thalamic FCD in both groups. Disruptions in motor function were associated with increases in cerebellar FCD in NM and thalamus FCD in HD. Alcohol-induced declines in cognitive performance were associated with connectivity increases in visual cortex and thalamus in NM, but in HD, increases in precuneus FCD were associated with improved cognitive performance. Acute alcohol reduced 'neurocognitive coupling', the association between behavioral performance and FCD (indexing brain activity), an effect that was accentuated in HD compared with NM. Findings suggest that reduced cortical connectivity in HD contribute to decline in cognitive abilities associated with heavy alcohol consumption, whereas increased cerebellar connectivity in HD may have compensatory effects on behavioral performance. The results reveal how drinking history alters the association between brain FCD and individual differences in behavioral performance.

http://www.nature.com/mp/journal/vaop/ncurrent/full/mp201625a.html

If I black out 1-3 times a week in college is that gonna make me dumb eventually?

>>8039621
Yikes lol. It can't be good for you. As a general rule of thumb when you start to get really really drunk stop drinking. I personally always know when I'm on the edge of a blackout, sometimes though I like falling off the edge.

http://saturnraw.jpl.nasa.gov/multimedia/raw/

She is still churning pictures out.

Cassini / Huygens has to be one of the greatest robotic exploration missions ever. The amount of stuff we've learned about Saturn from just one launch is completely insane.

>>8040225
You'd think they could have sprung for a color camera at least. My iPhone takes better pictures than that.