Archived threads in /sci/ - Science & Math - 107. page
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Do you agree with the Bell Curve theory?
>>8113044
This.
>>8113044
dubs comfirm
To think that different ethnicities have genetic differences in skin color, hair color, muscle type, propensity for certain diseases(osteoporosis, hypertension, etc), monogenic diseases, but not in brain function, is preposterous.
If you were to take a 3 cans of alphabetti spaghetti with exactly the same letters in each one and 200 letters in each can and pour them on to a plate. What are the chances, if picked at random, that you pick a 'Z'?
>>8112977
1/26
>>8112979
Well, that tricked nobody.
>>8112977
You could make the problem more complicated by adding a distribution for the letters and a probability that they're broken.
Even worse, we could include a probability of particular letters being indistinguishable from others if they're broken in a certain way.
Hey im just getting into math, so please be kind.
I have decided to take a free course online at coursera.org called introdution to probablilty and data. I am stuck understanding this one video.
First of all, what is that big reversed E, and its equation doing there.
Thanks, I will be here on this thread until i finish this course or this thread dies.
>>8112928
start with more basic stuff then if you dont understand what the course expect you to understand already. the reversed E is summing all the xi 's from 1 to n
>>8112936
What is the x with that line on top of it?
>>8112956
its the mean, anon.
i was thinking about how bascially the human race are stuck on planet earth with no practical actual way of space travelling.
we probably won't find a way to visit the nearest habitable planet in our lifetime.
we'll probably kill ourselves in 2075 during the scramble for resources too.
so i ask, what's the fucking point in doing science?
we're just gonna die anyway, and we will never be able to travel the stars.
>>8112830
Mars is habitable anon. We can travel into space on a rocket anon. Read a book anon.
Use nukes to move phobos beyond the roche limit.
Is someone's IQ a valid measurement of their intelligence? It seem to be tailored towards people with very specific talents and skill sets imo.
> It seem to be tailored towards people with very specific talents and skill sets
Which are ?
That's why it's not.
>>8112743
IQ tests are a meme to make lazy people feel good about themselves without actually accomplishing anything worthwhile.
>>8112659
whats the best GMO
>>8112672
Out on the market? Probably HT x IR maize.
>>8112659
how i stop shitposting on /sci/ and actually study instead .
Hey all -
Soon to be STEM /sci/ major here.
I was interested in some book suggestions that would be good to read over the summer.
Some stuff I prefer if you could suggest within the category -
Math Philosophy (interesting Math subjects, abstract ideas, perhaps a more advanced book akin to Vsauce / Numberphiles' subjects)
Science books discussing interesting and somewhat controversial topics, as well as political and economic development of drugs, medicine, etc
Physics / Abstract Mathematical mindfuck books that don't make...
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>>8112588
Proofs from the BOOK
http://www.springer.com/us/book/9783642008566
>>8112592
This looks pretty interesting.
How hard would it be to read and study with only elementary / undergraduate experience?
I'm actually in your same situation and would like to get some suggestions as well.
just got some blood work done to see if i have hypothyroidism, and my results say my tsh is 4.4ish which my dr says is above range.
my dr wants to put me on thyroid hormones, which he says i'll have to take for life.
i have all the symptoms (some hair loss, lips cracking, constipation, depression) and want to get better, but i really don't want to be taking pills my entire life.
is there anything else i can do? is there anything else that could be causing this? is it possible that it will just go away eventually?
my dr isn't really...
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>>8112560
This isn't the correct place for this. There are entire websites whose goal is to help educate, and help people with their thyroid problems.
I recommend you go there.
I assume you have Hashimoto's disease(autoimmune thyroiditis). Your thyroid gland is irreversibly destroyed, and can't produce enough hormones anymore. You have to get these hormones from somewhere else.
A reversible cause of hypothyroidism is iodine deficiency, but it is very rare outside of very poor countries.
Just take the pills. You don't really have any other choices other than go untreated.
It depends a little on what is the cause of your hypothyroidism. Get some more tests, even if it's just to understand the cause and what type of hypothroidism it. Because TSH is elevated it's probably the type where your thyroid is underactive (so the pituitary is producing a bunch of TSH to stimulate it to get its shit together, but it can't do it). So the guy above is right. You thyroid is probably fucked.
Sorry famalam, I'm not exactly an endocrinologist....
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![khan-academy1[1].jpg](https://i.imgur.com/fcYze1E.jpg "khan-academy1[1].jpg")
Is Khan Academy a good place to learn Math?
Yes.
>>8112552
Go on.
>>8112555
Yes?
Does anyone have something like this but less crowded and more aesthetically pleasing? The point is to have common math identities and values in front of me all the time. (sqrt(2)/2, sqrt(3)/2, etc.)
In the meantime /sci/ wallpaper thread I guess.
>>8112591
saved
So is it legit after all? What the FUCK is taking so long
>>8112457
correct me if Im wrong, but some other guy proved the same thing midway and people stopped giving a shit about this guy
>>8112460
Fuck nvm different conjecture
>>8112457
abc conjecture is cool and all but there are alot of cooler things in life
>e.g. AI
>e.g. virtual reality
>e.g. curing cancer
>e.g. space travel
I was wondering, if you have a closed room (thermally isolated) and leave the door of a regular fridge open, what will happen to the temperature inside the fridge? I'm well aware that the average temperature of the room will increase but is the fridge affected by this or does the temperature inside stay the same?
convection
Is the fridge running?
This board has successfully convinced me not to take any kind of Ph.D. scheme, or pure mathematics. You are all here circlejerking literally the same things over and over again, like IQ and "what's your opinion on this set of data?". For a while, I was actually interested in pursuing a high-level academic career, but apart from the few high-quality posters who are forced to maintain the board, this place is just a smarter version of /b/ and /pol/ mixed together.
How many times can you respond to the thread "the Earth is flat, prove me wrong xdddd"...
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>>8112333
>It's legitimately disappointing to see that this is what academia is like at a high level
>4chan.org/sci
What?
Can somebody give me a good definition(not textbook) on the restrictions on instantiations and generalizations in predicate logic proofs?
>>8112324
I love these programming images. How the fuck is this real? She even had the right idea, just put it in a fucking for loop.
>>8112422
they arent, retard
>>8112422
They aren't real. They are either a joke or to make some obsessive guy mad.
Hey /sci/, History and Medieval Studies major here. Can you calculate a reason for me to blow my head off?
Easily
>>8112286
Well lay it on me!
The job roof is low for fags like you. You may have to go back to school for something else or work a dead end job with shit wage for the rest of your life. I did the math
