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Archived threads in /sci/ - Science & Math - 1193. page

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what level of elite do you have to be to become an astronaut? perfect marks, perfect health, postdoc contributions in fields related to upcoming space projects? even then you're fighting against tens of thousands of applicants for a single seat in a launch vehicle. it must be beyond stressful but i guess they can cope with it like it's nothing.


what kind of mindset do you need? you clearly can't just be passionate about going into space, or you'd burn out fast in the weeding process. do you just have to be lucky as hell?
18 posts and 5 images submitted.
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>>8489532
you don't need to be a scientist to be an astronaut

most of the science that you do in space consists of pressing a button, turning a knob, etc,
because the experiments have been set up for you beforehand by the top-tier scientists who are monitoring all the shit you do from earth

you need to demonstrate that you can solve problems and not get panicked. This is why so many astronauts were chosen from a list of test pilots

if you want an extra edge - be an identical twin
>>
>>8489532
>what level of elite do you have to be to become an astronaut?
must be a high ranking freemason and part of a large chapter or lodge.

> perfect marks, perfect health, postdoc contributions in fields related to upcoming space projects?
all projects are not space and only high altitude aircraft.

>>8489546
>you don't need to be a scientist to be an astronaut
/thread


get it out of your head. space is a lie.
https://www.youtube.com/watch?v=kQYCEYiRMEo
>>
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>>8489611
>must be a high ranking freemason and part of a large chapter or lodge.
damn right.
pic related.

nasa is a huge fraud. people can be bought off just like the FDA.

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Hello /sci/, i am not hostile and i come from /b/ for help, there is this guy who left us a riddle, and we need your help on this one, /x/ aren't so helpful so why the fuck not /sci/

>>/b/712542861

help us out here.
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Solve me, and you will be.

Contact me if|---|if not do not. you have been warned.

n6gcwjbsx7qcnjxp
>>
>>8489159
maybe any medfag can help us with this, maybe it's an xray of something or i don't know
>>
>>8489159
>>8489159
Have you checked the metadata of the image?

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Is it expensive, or even possible, to build an amateur lab at home? What would i need? I'm amateur chem enthusiast from Germany and i think this might be a good outlet for my autism.
9 posts and 2 images submitted.
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>>8490412
check the laws of your country
but in general, yes, it is possible
it is also possible to get into way more trouble than you're ready for
at the very minimum you need a fume hood if you don't have a yard
lab technique is paid for in broken hardware and brushes with death
>>
>>8490412
what level? for basic general chem you can start with this:
http://www.thamesandkosmos.com/index.php/product/category/science-kits/chem-c3000

find a german company like this once you are ready to move on. you have different laws in germany
https://www.unitednuclear.com/
>>
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>>8490450
>>8490452
What about this level?

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hi guys what is 0/0
what is infinity - infinity
what is 1+1+1+1+1+1..?
whhy are imaginaru numbers a thing?
pic related my favourite scientist
9 posts and 1 images submitted.
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>>8490267
He's my favourite engineer :)
>>
i'm having a difficult time with logs and integration. want to scream.
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>>8490267
Can anyone link me to the source of that comment.

I want to know the context of why he said it.

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I recently read about Edwin H. Armstrong and how he got fucked over p.hard by the legal system.

Do you know of any other inventors/scientists/mathematicians who were fucked long and hard for trying to make progress in their field?
8 posts and 1 images submitted.
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Turing was fucked hard for being a gaylord.
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>>8490247
well, he wasn't fucked. I think he'd have liked that.
>>
>ramanujan
>just wanted to be autistic with numbers
>Hardy makes him eat shitty British food with no good indian veg around
>dies

>Perelman
>just wanted to be a master geometer/topologist
>chinks try to steal his credit

>Grothendieck
>just wants to generalize shit
>doesn't want to take military funding
>stupid coworkers don't really care where the funding comes from
>becomes a jedi hermit in the French mountains

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Hey i can't solver this no matter what , can you guys help me?
11 posts and 1 images submitted.
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>>8490609
Can you relate BA and AC to known quantities?
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>>8490616
i know the value of both of them put together other than that this is the only info that i have
Thanks
>>
>>8490621
Now state that information mathematically. But it's not the only information you have, it's a right triangle, which gives more information.

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I want to learn, or teach myself, calculus, but don't know where to begin. I've no preexisting knowledge of calculus, and I'm not sure where to begin. Just need to be pointed in the right direction. It would be a huge help and I'd appreciate it greatly.
11 posts and 2 images submitted.
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Bumping. Sci advise?
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>>8490141

google.
>>
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>>8490189

For what it's worth, if you're motivated enough, the textbook in pic related (It's available online if you know where to look...the one I used to study for AP BC Calc) and Khan Academy (and maybe the Barron's Book for the AP test... They have good review material) should be more than enough...

Just make sure to do as many problems as you need to get the concepts and ask about things you aren't sure about. Whether that be acquaintances or people in /sqt/, having someone explain a concept helps immensely.

Good luck!

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What's the absolutely worst injury a person could survive, provided they could be instantly teleported to a hospital immediately after?
13 posts and 4 images submitted.
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Just look at the most dangerous surgeries.
>>
This question is like asking "how much can we fuck up a body while keeping it alive, granted we're in a hospital". So you should look up "Experiments in the Revival of Organisms"
>>
>>8489458

japanese nuclear techs who got blasted by uranium and put on life support for 83 days while they were literally skeletons with a bit of skin and organs attached to their bodies

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Let's settle this once for all.
Complex numbers don't have a physical interpretation.
Yet they appear in the Schroedinger equation.
QM as a result is fucked up.
How about NOT NAMING them, MAKING WITHOUT THEM and simply using [math]\mathbb{R}^{2}[/math]?
56 posts and 5 images submitted.
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>>8489086
It's because of how they describe periodic functions when added to the exponential
>>
R^2 is not a field.
>>
There are many commonly used irrational numbers that can't even be constructed with elementary operations and might as well have no physical meaning either.

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Anyone have any tips on getting scholarships as a STEM major? My school refuses to give me financial aid and it's costing me out the bum.
12 posts and 1 images submitted.
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Be black or a women
>>
Do rowing as in the sport.
Or become disabled... fast.
>>
>>8489004
>Do rowing as in the sport
explain

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Can you recommend me a good microscope to buy? What is it that separates microscopes used in education from "toy" microscopes you can get for little?

My younger sister has taken an interest to biology and I would like to encourage her enthusiasm by getting her a microscope for Christmas.

The one she uses in high school magnifies up to 40x. It surprises me the kind of things you can see with so little magnification. When I look for 40x microscopes on Google I get a huge range of prices. What is it that sets a good microscope apart? I assume that they use good ones in schools and that those ones aren't cheap.

Can you recommend me some?
17 posts and 2 images submitted.
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What kind of samples do you plan on observing?
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>>8488893
Get one with a camera attachment is all I can say. Also you can go for a monocular instead. There is polarized light features for some stuff, lighting is important. I dicked around with a refurbished high end thing for a couple years before giving it to a school and that's all I know. You might wanna look at the refurb market, there are some real nice units for 1/3 cost.
>>
>>8488895
Once, they observed osmosis in onion cells, if i remember correctly. They also looked at the cells of their own skin. I can't remember any other things she might have told me about.

Tomorrow they are going to dissect a cow's eye, but I don't know if a microscope is used to observe anything when you do that.

What is the scientific explanation for the fact that I feel like almost all the other people are just simple NPCs? Am I some sort of psycho or what?
50 posts and 4 images submitted.
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shit, he knows.
>>
>>8488762
I don't know what kind of dumb thought process leads to this idea, but rest assured many people have it.
You're just incapable of understanding a third point of view.
>>
>>8488762
>Am I some sort of psycho or what?

Yes.

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Can anyone teach me about lucid dreaming without all the /x/ bullshit that seems to accompany it?
19 posts and 4 images submitted.
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>>8488555
https://scholar.google.co.uk/scholar?hl=en&q=lucid+dreaming&btnG=&as_sdt=1%2C5&as_sdtp=
>>
>>8488555

http://pms.sagepub.com/content/51/3_suppl2/1039.short this study records some guys lucid dreaming technique. maybe get this article of sci-hub and see what the technique was.
>>
Test

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WILL IT FLY /SCI/?
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definitely not
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>planes fly because their wheels spin
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>>8474516
Yes because the wheels of the plane are free moving and frictionless

The engines are of a separate entity if themselves, with virtually nothing holding them back from the tarmac which is frictionless remember, it produces thrust and pushes itself forward

The treadmill can spin all it wants but it'll never stop the forward thrust of the plane

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Despite every popsci""""entist"""" going on about it, I've heard that science has abandoned it as a principle. Is this true?
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>I've heard that science has abandoned it as a principle
>>
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It depends on which area of science you're looking at.
>>
>>8486551

Science has never even had that principle. Read a textbook and try to find "falsifiability" in it even once.

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