Archived threads in /sci/ - Science & Math - 68. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
ask someone who just did an internship in the ESA + various space manufacturing companies anything
>>8149875
I did an internship with NASA, this is not a particularly major thing as positions are typically open to anyone who lives nearby one of their offices. I've also done interships for the Dept of Energy as well.
>>8149875
why are they denying lmaos?
What did you do there?
Hello people.
I'm a biologist and I think that Astronomy and physics takes just
too much space in the pop culture.
Space travels and black holes are fascinating without doubts.
However biology has also his wonders to share.
I want to become famous as a biology popularizer.
Since I love 4chan and I started using it in the year anno domini
of the Lord 2007/2008
I want to spread my word also here.
I have a telegram channel
https://telegram.me/PellostyleBiology
And a telegram chat about Biology
https://telegram.me/PellostyleBiologyChat
feel...
Comment too long. Click here to view the full text.
The process of mitosis. The fundamental process of asexual reproduction.
The scope of mitosis is to segregate the genomic information in two cells.
Here we see the chromosomes in red and the microtubules in green. After
the chromosome condensation the microtubules organize in a spider like
structure. They are ready to pull the DNA at the opposite poles of the cell.
Once the chromosomes are separated the cell goes into anaphase then
telophase and divides.
>>8149773
Ale you a real person, or copypasta bot?
I've seen this shit here before (no. I don't mean, that biology is shit )
Keep going.
Bump
They say that diseases introduced by the European conquistadors killed off as much as 95% of the indigenous American population. How come that the Europeans didn't suffer such casualties from the Americans' diseases? Didn't they have their own germs which the conquistadors were not immunized against?
>>8149752
>diseases
""""""""""""diseases""""""""""""
Diseases don't develop everyone at the same rate nor do immune systems.
You suck at virtual ecology and immune system studies.
>>8149764
everywhere*
Can one learn 450 pages of biology in 1 month ?
>>8149477
Do you suck cock?
>>8149477
Depends on how many pictures are in those pages
>>8149477
You can find out for us OP
What is the purpose of hatred?
All I do all day is stalk my enemies learning everything about them and dream about violence.
Why do live in hatred?
Can hatred be changed?
>>8149469
Yeah you could kill them
>>8149471
voting for this
OP break the high score
Hatred is just the inverse of love.
Humans have an innate need to feel the love of others, and you probably feel this need more strongly than most. However, in reality, you feel almost no love on a daily basis, not really as anyone's fault just as a consequence of the nature of our industrial capitalist society. Your attempts to gain the love of others through spreading your own love haven't been successful, and as a result you are frustrated and angry, and feel as though you have been wronged. So, lacking any outlet for the love that you feel that will produce...
Comment too long. Click here to view the full text.
If I want to work in a lab with chemicals hands on, what would be better? Pure Chem or ChemE? What is a typical day for a ChemE like (besides sucking cocks meme?) Can I do most of what a Chemist can do with a ChemE degree? It seems the only differences are ChemE's take more math and some specialized Chemical Engineering courses, and Pure Chemists take more electives that go deeper into various Chem topics. I'm minoring in math, so I'm taking at least the amount of math ChemE's need anyway.
you don't
faggot
>>8149356
>hands on
yeah hands on my dick lol
Chemical engineering is 99% fluid dynamics and tubes
1% actual chemistry
I have just found out a lot of the professors in my school paid indexed journals' staffs (including reviewers & editors) so that they could publish their papers easier. It's not far-fetched to say that these journals pretty much belong to the school.
This is why my school has advanced in ranking so fast in the last 5 years.
Fuck academy. I know that there would be corruption in this shithole but I didn't know it could be THAT bad.
I live in Asia btw, I hope this is only an Asian thing.
(I made a thread a few days ago but I was drunk so...
Comment too long. Click here to view the full text.
No one give a shit about you chinks.
Which country?
>>8149353
Singapore.
![5e7fc05003bb0d614b7287d7f836b68c2133bde9[1].jpg](https://i.imgur.com/BuwZdOL.jpg "5e7fc05003bb0d614b7287d7f836b68c2133bde9[1].jpg")
Not sure what board would really cover a topic like this, so I'll just post it here.
Is there any real reason that we're burying people pumped full of dangerous chemicals inside of expensive steel boxes, never to be seen again? Just think of the millions of dollars are wasted and the ecological impact this must have on the ecosystems around cemeteries.
Like, this sounds like something only mental sickness would conjure up.
Human tradition
Personally i want my ashes to nourish plants once im ded
dumb human culture
t. alien
But really, it is an odd topic. Can't our ashes be sent to space or something cool now?
>>8149282
>Just think of the millions of dollars are wasted
Wouldn't really call it a waste, considering that the dollars spent provide utility to the purchasers.
everyone strap in, I have a crazy ass math question:
so the definition of infinite is something limitless or has no end. Things such as counting, space (as far as we know) and my hatred towards terrible yet popular music are limitless.
with the numbers 1 and 2, there is a limitless amount of decimals and integers between them, however how can there be an endless count of numbers between 1 and 2 if 2 is the ending point? If these numbers are infinite, how can we count to 2?
INB4 by counting 1, 2 retard
Are you retarded
>>8149201
> so the definition of infinite is something limitless or has no end
That's wrong though.
> how can we count to 2?
define counting. most people define it by applying the counting numbers to a set.
To count to 2, you'd go 1, 2
2 Isn't really an end point, it's more like a second starting point.
Where were you when LENR was breaking through?
Brilliant Light Power (Randell Mills):
https://www.youtube.com/watch?v=R0PYe-4090g
This guy is a fraud and has been for years. If there was a hype train, it left in 2013 and hasn't come back
>>8149145
You made this thread earlier. The consensus was that if it really worked then he wouldn't even need investors.
>>8149501
>If there was a hype train, it left in 2013 and hasn't come back
Are you sure about this?
https://www.youtube.com/watch?v=ZXIpohDaUXM
Rossi also has a new iteration of his reactor
Now it has the size of a match and outputs 100w of light/heat/electricity :DDD
Either he's an incredible con man, or the paradigm shift is here
>>8149523
>R&D is free
Also that's...
Comment too long. Click here to view the full text.
>background.. be NEET for 3 years now, have on a few occasions noticed what looked like blood in my solid shit, had an episode of stomach aches and lots of farting about one month ago, i'm 5'10" 125lbs-130lbs
>be a week ago, have headache and stomach aching, farting a fucking lot and it smells fucking disgusting, like there is something wrong with me, sort of annoying but whatever it will go away right--- this lasts for a couple of days
>past week, muscle aches, chills,...
Comment too long. Click here to view the full text.
please leave
>>8149094
fuck off, i know med students post here and it would help me.
i'm fucking dying spongebobposter
>>8149090
Sounds like a viral infection. It should go away on it's own in a few days, just keep drinking plenty of fluids and restore your electrolytes (Gatorade is perfect). If it won't go away until next week, then you should see a doctor.
Would a planet need to be a similar size to Earth to be able to produce plant and animal life as we know it on Earth?
ie. When looking for new habitable planets, do we only need to pay attention to planets approx the same size as Earth, or could we find a planet with 2/3 the mass, but still is lush and green with vegetation and oceans.
>>8148944
What life (as we know it) needs is liquid water. Planet size isn't an important factor.
>>8148949
I thought gravity would play a big part in it.
Wouldn't smaller planets struggle to keep an atmosphere? ie. Mars? Or is there another reason that Mars no longer has an atmosphere?
>>8148957
Mars no longer has an atmosphere (a very thin one remains) for two intricate reasons :
- No magnetic activity : Earth's core is active and create a magnetic field around the planet that protect it against solar winds. The same solar winds that can blow the atmosphere out of the planet.
- After the majority of Mars's atmosphere was blown away, the remaining air wasn't creating a suffisant pressure on the surface to keep water liquid. Water evaporates and is blown away, no water remains.
I'm...
Comment too long. Click here to view the full text.
I wanted to have a discussion on the origin of gravity, what causes gravity firstly. I'm curious on the opinions of others
>Pic Unrelated
>>8148894
[math]{R^\nabla }[/math]
>>8148894
Mass. Anything else ?
What are the most reputable Pure Math schools? Pic related.
>>8148878
ENS.
Yourself and books.
>>8148921
2nded
When we say mathematics is rigorous, exactly what do we mean? Is it the fact that it is unambiguous? That we make a assumptions clear? But both those definitions are problematic, since I can easily keep asking for further assumptions, and anything can be classified as ambiguous if we pull if far enough.
I have no problem doing rigorous mathematics, I have problems seeing exactly what we mean by it. It doesn't seem to have a clear definition, or a clear way to measure or distinguish rigorous from non-rigorous.
There are no assumptions.
here's an attempt: rigorous = can straightforwardly be converted into a valid statement in formal logic
that's just the first thing to come to mind; go ahead and nitpick/criticize (for example: what counts as "straightforward"?)
>>8149002
>wat is an axiom?
