How would you solve this?
>>8394230
Suppose x < 9. Then 5x < 45. Then 5x + 7 < 52. Therefore if 5x + 7 >= 52, then x >= 9.
>>8394230
I'd probably use math.
>>8394237
Thanks, but I was talking about number 7
Why aren't women generally as funny as men? Is there an understood biological explanation or is it too controversial to explore?
Some people claim that it was an evolutionary trait to attract women, but I feel like men's humor is probably more of a benefit to keeping the male members of a tribe together. Being able to make jokes and laugh with each other keeps spirits high, ultimately increasing their risk of survival in dangerous situations such as hunting vicious animals or going to war with other tribes.
>>8394103
Women are totally funny get over it.
>>8394116
shut up bitch
Why does everyone on this board hate philosophy? Is it because you can't accept that science is just a giant spook?
why do u care? are u insecure or something???
>>8394070
We don't hate philosophy, we hate postmodernism and modern philosophy.
You can make math way easier if you just stop using radians and switch to degrees instead. Why did anyone ever even come up with radians in the first place?
>Implying 3.142593654/2 radians is a good way of saying 90 degrees
>>8394054
>Implying 3.142593654/2 radians is a good way of saying 90 degrees
no, but [math]\frac{\pi}{2}[/math] is
>>8394054
Shameful attempt at bait OP
> I'm still going through with my STEM major tho...
Link: http://www.realclearscience.com/blog/2016/01/string_theory_has_failed_as_a_scientific_theory.html
>>8394040
inb4 the shitstorm
>>8394040
The sooner you learn that "science" is always wrong, the better your life will be.
>>8394055
I see where you're going with this senpai...
Hey /sci/ I'm in 1st year undergrad of Geology and it looks like I'll need to do a term paper for my chemistry class. What are some interesting geology-related topics you think I could manage?
Note that I'm not asking you o do my homework for me, I'd just like to hear some opinions.
>>8393950
The dangers of fracking
assuming they just want a lit review of something chem-related:
how do we know the age and bulk composition of the earth? (mostly geochemistry of meteorites)
what explains the different types of volcanoes? (i.e. lava properties as a function of composition which is in turn related to tectonic setting)
Let's have a thread about this today.
As we know, in DNA Replication the Helicase (which I believe is an enzyme) separates the double-helix of the DNA strand, and from there a complementary copy of the gene is created as mRNA.
Feel free to correct me if I'm wrong, or elaborate further.
In RNA Replication, there are two processes, Transcription and Translation.
In both there are three steps, Translation happening after the former, Initiation, Elongation, and Termination.
In Initiation, the RNA Polymerase binds to the Promoter, just under the TATA Cap.
From there, the Codons are "read" and the proccess starts when the "Start Codon" (AUG/Methianine) is found, and from there replication follows the Leading Strand going 5'->3' (I'm probably wrong) attaching the new nucleotide at the spot where the next 3' is, the Lagging Strand (3'->5') being synthesized in Okazaki Fragments along the way.
After it's all completed, a "Stop Codon" is read, of which there are three, and that signals transcription to stop.
After that is Translation, where to start, the created mRNA is sent out of the Nucleolus and to the Ribosomes on the Endoplasmic Reticulum. From there, tRNA (I'm still foggy about where it's created) enters the Ribosome in its P spot, the other two being E and A, and in order from Left-to-Right, EPA, with the proper Anticodon for the Codon contained by the mRNA. Then an "assembly line" type of thing happens as each added nucleotide is separated from its base, and the old base is replace by the new one, being ejected from the "E" port in the Ribosome, and having been taken in from the "A" port.
Well, that's all I got so far.
Anyone got some corrections or elaborations?
you forget the polyadenylation (addition of adenine nucleotides at the 3' of the RNA transcript) that ends the termination process and after that, the RNA splicing (intron/exon).
>>8393898
Ah, yea, thank you.
The Polyadenyl is just that long strand of A's at the end to keep the RNA from degrading iirc.
I apologize for the lame question as well, but what exactly are Introns?
Are they just unneeded pieces of code, and are therefore spliced out, or is it something else?
>>8393953
they are unneeded, or they contain skipped exons, or they serve as a mutation pool, or they have regulatory sequences/secondary structures. it all depends.
Give me five (5) discoveries, inventions or innovations that really are important in science since 2001 ?
>>8393849
>really are important in science
Define 'really important in science'.
>>8393849
Nothing at all, there's nothing. Nothing was invented in the 2000s that even helped anyone really.
Science has regressed, if anything, from excessive concern for rigor, academia becoming overly engrossed in theoretical again, and no good Engineers on the boards to help apply or direct the research going on in universities. And also lack of funding and forced admissions quotas caused a general depression in vision and progress in the scientific community. Everything in the 2000s nearly that was hailed as "new technology" like smartphones, was just refinements and piecewise combination of other technologies developed in the 1980s-1990s, except for certain advancements in telecommunications, like fibre optic cables, signal theory, and design of multiplexers for fibre optics and broadband comms which wasn't around before 2000 and really did require entire new algorithms, research, etc. There isn't really a lot of groundbreaking stuff going on right now.
CRISPR and gene editing may hold some hope but that's on the horizon still, we do not have a practical application of it yet.
>>8393849
memes
How come I'm both clearly taller and more intelligent than my parents? Shouldn't I be somewhere in between?
>>8393776
environmental variation
also gene expression
and gene randomisation (independent assortment etc)
did you drop biology at 16? are you 16?
>>8393776
I'm sorry I'm the one who tells you but... you're adopted.
>>8393792
/thread
Thought I would offer up a new toy for you guys to play with: apply the Grothendieck construction to the functor from sets to categories obtained by composing a contravariant hom 2-functor (for some fixed category C) with the functor taking sets to their corresponding discrete categories. Objects in the entire category for the induced bundle are like sets, but rather than bags of structureless points, they are bags of objects living in C. A morphism is a function on the underlying set, but where each assignment f(x)=y is actually a morphism x—>y from C. Notice that we can embed C into this new category by the obvious assignment taking c to {c}.
Also of interest: if you decategorify this entire setup, you obtain a process for taking a set S to a new set; the new set is just S+{*}. This is in fact part of the maybe monad, so in a sense my construction looks like a categorified maybe monad.
Observe how similar the category of groupoids is to the category obtained above by applying the construction to the category of groups.
>>8393766
Lol what?
>>8393782
brainlet detected lol
>>8393782
Sorry if my description is lacking. Apply the construction to the functor I gave and you will see!
I finished high school and never properly learned science.
How to study math, physics, chemistry and biology from the basics, and build deeper insightful levels of knowledge on those fields?
Please help a brainlet.
>>8393744
khan academy
>>8393744
Read a textbook
Do problems
>>8393747
Are you talking serious or is just a meme?
I got Campbell book on biology, Paul G. Hewitt on Physics.
How can I know if I'm cut for research? I want to test myself to study science from the start and advance from there. Please guide me.
I'm dead real serious, please help.
>https://en.wikipedia.org/wiki/False_vacuum
>https://medium.com/starts-with-a-bang/could-black-holes-destroy-the-universe-de8a3135856f#.hbhfk3wji
Once I read about this my life no longer made sense.
I feel that anytime I´ll die, I took several nights without sleep normally, until my body gets tired is when I close my eyes and sleep for lack of energy.
I am not a scientist or anything like that, but I would like to know: My fear is stupid?
Thank you very much for your answers, I need help really, I think I have to visit some psychologist (I also think of hypnosis but not if it works) I repeat, thank you very much for your answers.
Bump... :(
Nothing... :(
This thread is so stupid that do not need to be answered?
OP here :c
I did some calculations, /sci/.
Estimated mass of the observable universe is 1E48 kg. The corresponding Schwarzschild radius is 48 Gpc. However, the observable universe only has a diameter of ~30 Gpc!
We are actually living inside a black hole right now!! If you don't believe me, you can readily find the numbers online.
>>8393633
> However, the observable universe only has a diameter of ~30 Gpc
>We are actually living inside a black hole right now!
One does not follow from the other.
We don't live in a black hole, on cosmological scales the universe is flat.
This checks out I looked slightly to my right and saw the back of my own head. Freaky!
If any of you wanna see a rocket launch live, here you go
http://www.arianespace.com/mission/ariane-flight-va231/
>>8393626
God dammit I need to leave for class in 5 and launch is in 6.
Dieu-vitesse, Ariane
>>8393626
beautifel rocket tb'h
Will I get anywhere? Most mathematicians are dumb so I think I've got a great shot. I'm going to try to read all the related material and try to solve it mentally without writing anything down. Note that I only have up to Calculus 2 knowledge.
>>8393390
Wtf is the big deal about P=NP?
It either does or it doesn't, so you've got a 1/2 chance of getting it right.
good luck solving p=np without lower category theory, interdimensional dykemueller theory, weyl spinors, penrose fistors, or double integrals, faggot.
>>8393394
n = 1