File: terry-edp.png (716KB, 1579x812px) Image search:
[Google]
716KB, 1579x812px
Why are professors incapable of stopping on time? They can do good research but apparently reading the clock is too difficult for them.
12 Posts / 1 Images
View this topic
>>
>>8913553
Maybe they have other tasks at hand and can't finish them up in time.
The better question is why can't students shut the fuck up and wait calmly for the professor instead of turning the entire class into a place resembling a room for people with dementia and schizophrenia?
>>
>>8913553
Because in homeland you teach until full lecture done, no time stop, only info. Markcheck, boy, Americans
>>
they really like what they're talking about
File: IMG_6286.jpg (127KB, 534x639px) Image search:
[Google]
127KB, 534x639px
Managed to make a psychiatrist think I have ADHD. Got psychostimulants, what am I in for?
18 Posts / 3 Images
View this topic
>>
File: Screen Shot 2016-11-18 at 3.03.33 PM.png (62KB, 182x218px) Image search:
[Google]
62KB, 182x218px
The abyss is what you're in for. Sort yourself out. Tell the truth, and ACT IT OUT.
>>
>>8913491
What?
>>
>>8913495
CLEAN YOUR ROOM
File: GoreChart.jpg (132KB, 646x462px) Image search:
[Google]
132KB, 646x462px
Can we talk about global warming for a second? So I'm no denier, by any means. But it's gotta be more complicated then Al Gore has been spouting off for years right? The issue I see with the "mainstream" opinion of global warming thus far is 2 things.
1) Dissolved Gases. When you raise the temperature of a liquid, the ability of said liquid to retain solid gases decreases. This contradicts the notion that the rise in CO2 affects the temperature, when temperature increase actually is what causes more CO2 to be released into the atmosphere (by way of dissolved CO2 in our oceans b/c of plant life)
2) Henry's Law. The assumption posed from my first bullet then leads to the question "well then that increased CO2 then causes the greenhouse effect"...well, not necessarily. B/c HL states that the concentration of a gas dissolved in a solvent will be proportional to the partial pressure of the gas above the solvent. This means that they will constantly be in equilibrium.
My question to you then /sci/ is what exactly IS going on? I'm no climate-change denier, or any kind of troll, redditor, or /pol/-fag. I'm genuinely curious. The facts are there, ice caps are melting, ocean levels are rising. But I don't think CO2 is the issue, and carbon-footprints are retarded.
PIC -Al Gore's bullshit chart suggesting that Carbon Dioxide causes a rise in temperature
21 Posts / 2 Images
View this topic
>>
shameless self-bump
>>
>>8913265
>When you raise the temperature of a liquid, the ability of said liquid to retain solid gases decreases. This contradicts the notion that the rise in CO2 affects the temperature, when temperature increase actually is what causes more CO2 to be released into the atmosphere
What? You haven't shown how that's a contradiction at all.
Also, the ocean is currently a net CO2 sink despite the rising water temperature, which really underscores how far we are from CO2 equilibrium right now.
>HL states that the concentration of a gas dissolved in a solvent will be proportional to the partial pressure of the gas above the solvent. This means that they will constantly be in equilibrium.
So what? I'm not really sure where you're going with this.
>My question to you then /sci/ is what exactly IS going on?
Have you tried reading ANYTHING other than denier copy-paste and Al Gore quotes?
>But I don't think CO2 is the issue,
Then you're wrong.
We can measure the Earth's outgoing radiation directly, and determine the strength and components of the greenhouse effect from that. There is no doubt that the current rise in temperatures is caused by sky-rocketing CO2 levels. We can also determine the source of that atmospheric CO2 by isotope analysis, and can show it's originating from fossil sources.
>>
>>8913265
Here's one piece of evidence that proves you wrong: relative abundance of carbon isotopes in the atmosphere. The carbon in hydrocarbons we burn is diffferent to the carbon that was already in the environment. We can measure the relative abundance of different carbon isotopes over time and see that we're definitely the one's releasing CO2 which we know is a greenhouse gas.
File: my idol.jpg (116KB, 900x900px) Image search:
[Google]
116KB, 900x900px
Mathematicians of /his/:
How do mathematicians know what to go after? In physics I can see it: you see a phenomenom and you get an insight like that stuff about the apple falling on newton's head or you see a phenomenon and make some basic questions to yourself.
But I can't see how Mathematicians get their inspiration I don't even understand how they even start finding out the things they do. It's like it comes out of nowhere and it's just a bunch of disconnected rules. It's like: How do you even start thinking about roots or those other properties?
25 Posts / 3 Images
View this topic
>>
>>8913165
Your image gives away your troll.
>>
>>8913171
How is my post trolling? I'm asking a genuine question. I also like Wildberger.
>>
>>8913165
Anon, in mathematics a believing heart is your magic.
File: 1483208801333.jpg (200KB, 1920x1080px) Image search:
[Google]
200KB, 1920x1080px
Looks like I'm not getting an internship this summer either, might as well start learning to program or something.
What's a good useful language for a third year MechE student to learn?
13 Posts / 1 Images
View this topic
>>
>>8913025
C++
>>
>>8913036
this
And Ladder if you're interested in automation
>>
Are you in mechatronic or mechanical?
If so what is the major difference between them, because I'm at the crossroads of deciding between them and I'm not sure how to proceed.
File: regional-population-projections-centered-legend.png (92KB, 1200x900px) Image search:
[Google]
92KB, 1200x900px
How do we stop the earth from being overrun with Africans?
Nightmare mode: this UN projection already accounts for improvements in contraception and education resulting in a 70% fertility decrease by 2100
111 Posts / 22 Images
View this topic
>>
>>8912947
A Genophage that targets African specific genes.
>>
If there's 2 billion Africans eventually one of them will find out how to sustainably farm something.
They'll stay in Africa, which will be less of a shithole.
Africa's a fuck-huge continent with a lot of resources so this is not some pie-in-the-sky hypothesis
>>
promise to never feed them
Anonymous
What gives kids so much energy? 2017-05-16 12:30:09 Post No.8912910
[Report] Image search: [Google]
What gives kids so much energy? 2017-05-16 12:30:09 Post No.8912910
[Report] Image search: [Google]
File: Capture.jpg (69KB, 885x560px) Image search:
[Google]
69KB, 885x560px
What gives kids so much energy?
Anonymous
2017-05-16 12:30:09
Post No. 8912910
[Report]
[View this topic]
48 Posts / 3 Images
View this topic
>>
>>8912910
not having to work
>>
>>8912910
crack
>>
>>8912910
Stem cells
File: carson.jpg (25KB, 316x421px) Image search:
[Google]
25KB, 316x421px
Young genius Carson Huey-You will earn his bachelor’s degree from Texas Christian University on Saturday (May 13).
“I’m studying physics but in particular quantum physics eventually going into research and teaching after graduate school,” said Huey-You, 14, to Dallas-Fort Worth CBS affiliate News Channel 11.
He was 10 when Professor Magnus Rittby took him under his wing.
“Of course I had reservations,” Rittby told Channel 11. “I’ve never seen a 10-year-old apply for college. But he was a bright kid and I just thought it was worth fighting for him to get admitted and try it.”
By the time he crossed path with his professor, Huey-You was used to attending classes with academic peers that were much older. After being homeschooled, Huey-You entered the 8th grade at the tender age of five years old.
His younger brother Canaan Huey-You,11, will graduate high school this week. The younger Huey-You has followed Carson’s footsteps with respect to his school choice and plans to study physics and astronomy at TSU.
Information from dfw-cbslocal.com contributed to this report.
http://www.scmp.com/news/world/united-states-canada/article/2094317/boy-genius-carson-huey-you-14-graduates-physics
>ywn be a child prodigy
35 Posts / 6 Images
View this topic
>>
>>8912861
He's probably going to end up a tenured professor or something. I'm not interested in that. I want to make real money. You don't have to be a child prodigy for that.
>>
>tfw will be buried in history as a bust because pure academics lend nothing to ability.
Would be better for him to have pursued his endeavors extracurricularly and done something with himself, or gone through puberty or something
>>
>>8912861
You always hear in the news about kids like that, but how much of them really end up successful?
Anonymous
PROCRASTINATION - DRUGS 2017-05-15 11:58:52 Post No.8912829
[Report] Image search: [Google]
PROCRASTINATION - DRUGS 2017-05-15 11:58:52 Post No.8912829
[Report] Image search: [Google]
File: 1457146360557.jpg (120KB, 1024x1021px) Image search:
[Google]
120KB, 1024x1021px
/Sci/
Do you think it is worth it to jump into any of the following meds to beat procrastination, as someone who is ruled by it despte meditating, exercising and eating healthy? It's a constant battle I seem to lose more often than not.
Possible meds include
>Dexamphetame (Or the mixed salt version, Adderal)
>Bupropion (Dopamine and Noradrenaline reuptake inhibitor)
>Selegiline (MAO-B inhibitor (only increases dopamine)
>Ones I've tried but didn't work well
>Methylphenidate (I cannot remember words on it and the come down makes me suicidal, the worst drug I have ever tried in my life)
>Modafinil (Sometimes it works, sometimes it doesn't. Sometimes it makes me feel so disconnected with the world, everything seems fake)
What's your opinion? I think I'll give Selegiline a try since it has a long half life, only seems to increase Dopamine and seems fairly well-tolerated long term with some talk about neuro-protection compared to the rest.
52 Posts / 15 Images
View this topic
>>
>>8912829
Adderal only has an effect if you ADHD. If you don't have it, it's just placebo; Don't waste your money on that. Take some Nootropics, that'll help more than most.
>>
File: 1456050721264.jpg (26KB, 408x408px) Image search:
[Google]
26KB, 408x408px
>>8912883
>Adderal only has an effect if you ADHD
You sincerely think Amphetamines don't have any effect on the healthy population, really?
--
I already take noots, Bacopa, Lion's Mane, Vitamin B, Zinc, mag, melatonin..I eat 6 eggs per day for the choline too. It's not working.
>>
File: 354deaa3770912621bb816da070346ab.jpg (12KB, 258x245px) Image search:
[Google]
12KB, 258x245px
>>8912883
>Adderal only has an effect if you ADHD.
Imagine you have two identical metal cubes at 0C. One is directly touching an object that is 100C. The other has 100C air blowing on it. Assume the contact area is the same for both 0C cubes. How do you determine the speed at which the air must blow past the right cube so it heats as quickly as the left cube?
17 Posts / 1 Images
View this topic
>>
OP here, I assume it has something to do with the relative densities of the air/fluid and the 100C solid, as well as the total mass of air/fluid, but I don't know how to calculate it.
>>
I guess you have to compare the conductivity of metal with the alpha value (or k) of the forced convection.
Look up the formula for alpha and then solve it for the fluid speed
>>
It's a hard question to answer because there are so many assumptions one would have to make in order to even approximate. Such as the heat capacity of "metal cube", the differential change in the heat capacity as a function of temperature, the effects of friction of moving air, the compressibility of air, the differential rate of heating and cooling meaning that the instantaneous speed of the air must also be differential, I could go on...
Anonymous
What is the actual likelyhood of the singularity happening this century? 2017-05-15 10:00:31 Post No.8912510
[Report] Image search: [Google]
What is the actual likelyhood of the singularity happening this century? 2017-05-15 10:00:31 Post No.8912510
[Report] Image search: [Google]
File: countdown_to_singularity.png (554KB, 825x563px) Image search:
[Google]
554KB, 825x563px
What is the actual likelyhood of the singularity happening this century?
Anonymous
2017-05-15 10:00:31
Post No. 8912510
[Report]
[View this topic]
There are some estimates we'll hit the singularity around 2050. Is that for real or is that not a good prediction?
22 Posts / 4 Images
View this topic
>>
>>8912510
Take all the atoms in the universe.
Multiply them by the largest number in mathematics and triple that by the amount of possible suppositions of all subatomic particals in a quantum spectrum.
>>
>>8912531
One in that number.
>>
File: cunnilingus.jpg (49KB, 720x458px) Image search:
[Google]
49KB, 720x458px
What's your favorite type of cloud, /sci/? Mine is the cunnilingus cloud.
11 Posts / 4 Images
View this topic
>>
>>8912493
>cunningulus
you mean Cum ol' on imbus?
>>
>>8913967
YES BB YES BB FUCK ME 4 TIPS ME
>>
File: 9478440808_4ac005573a_b.jpg (245KB, 1024x682px) Image search:
[Google]
245KB, 1024x682px
cirrocumulus.
Anonymous
Why do women go into biology the most? 2017-05-15 04:52:30 Post No.8911836
[Report] Image search: [Google]
Why do women go into biology the most? 2017-05-15 04:52:30 Post No.8911836
[Report] Image search: [Google]
File: woman_scientist.jpg (261KB, 2000x1000px) Image search:
[Google]
261KB, 2000x1000px
Why do women go into biology the most?
Anonymous
2017-05-15 04:52:30
Post No. 8911836
[Report]
[View this topic]
The only STEM field that's mostly women, and the STEM field that women mostly go into, is biology or some type of medicine. What's the end game? Is it cause it's the most stamp-collecting of the sciences?
46 Posts / 3 Images
View this topic
>>
>>8911836
less math maybe.
>>
>>8911836
Because for biology, you just memorize stuff, compared to physics which requires critical thinking, logic, etc. Biology seems straightforward because all you do is memorize and hope your brain retains that information for your exams and practice.
Source: Medical Technology student studying courses that is pretty much applied biology.
>>
>>8912291
>Biology seems straightforward because all you do is memorize and hope your brain retains that information for your exams and practice
My molecular biology final I just finished made me identify the promoter for a specific gene, design primers for it, identify how to amplify this promoter, confirm I made it, and design a plasmid with fluorescence labeling of this gene (plus describe why I would want to clone my product into a plasmid). There was no memorization and a lot of critical thinking involved (e.g. what temperature should I set the annealing stage of PCR to, given I have this ratio of C-G pairings?).
What should I expect from a MedTech student though.
File: Michael-960x640.jpg (42KB, 960x640px) Image search:
[Google]
42KB, 960x640px
Who is more of a scientist? Bill Nye or VSauce?
31 Posts / 5 Images
View this topic
>>
vsause
>>
The hairs on my asscheeks are more of a scientist than both of them put together and tripled.
>>
>>8911659
Vsauce
File: 1494661157162.jpg (84KB, 931x833px) Image search:
[Google]
84KB, 931x833px
Are "social sciences" actually sciences? What's /sci/'s opinion of things like linguistics?
94 Posts / 7 Images
View this topic
>>
Linguistics must be the worst example to make your case.
>>
>>8911357
>not quantitive
>not measurable
>not objective
not even close to science
>>
>>8911362
What's so bad about linguistics anon?