Archived threads in /sci/ - Science & Math - 220. page
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Man claimed to build a motorbike that can run on hydrogen taken from water. I'm not much of a chemfag or anything, but I just want to know if this is possible since no one is sure if it's a hoax. I already know they've pulled of algea as a fuel.
http://www.odditycentral.com/auto/brazilian-man-builds-clean-motorcycle-that-can-travel-300-miles-on-a-liter-of-water.html
>>7998478
Overunity device. If anything, the guy managed to make an electric bike using electrolisis as a intemediate step. Probably even less efficient than normal motors.
Shut it down.
>electrolysis
>runs on water
>tfw you think you've proven a problem that's been open for over 2 decades
How do I check myself to be sure I haven't done nothing wrong so that I don't make myself look like a dumbass when I try to show this to some math person?
>>7998407
whats the problem
>>7998407
Ask your friends, if they agree with you then ask your advisor. Then publish a paper to arXiv and start giving talks about your discovery.
>>7998407
Protip: you haven't
Move the fuck over graphene, there's a new kid in town carbyne!
>>“According to theoretical models, carbyne’s mechanical properties exceed all known materials, outperforming both graphene and diamond.”
for plebs:
http://www.sci-news.com/othersciences/chemistry/carbyne-ultra-long-1d-carbon-chains-03770.html
for patricians:
http://arxiv.org/abs/1507.04896
http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat4617.html
Looks interesting, but the name is shit
What's the derivation for pi r squared
Bump because fuck you graphene
is string theory detrimental to modern theoretical physics? i've heard things along the lines of it just being a mathematical framework with no empirical basis but i was wondering if anyone knew the details of it.
string theory/m-theory general
>>7998252
>is string theory detrimental to modern theoretical physics?
No. Physicists will work on what interests them and what they can make advancements in.
>i've heard things along the lines of it just being a mathematical framework with no empirical basis but i was wondering if anyone knew the details of it.
This is true but necessary at the incredibly small scale and level of abstraction modern physics currently finds itself in. String theory...
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>>7998264
>String theory currently stands only on its ability to elegantly simplify the empirically proven models.
Is it able to simplify the process of making empirical predictions though? What good is physics if I can't use it to predict/affect the world in any way?
>>7998357
Build things to help each other survive
Could getting stabbed in the brain effect the things you like to do or eat?
>>7998204
Nah, It just kill you.
>>7998204
>effect
>asking borderline rhetorical questions
Ignoring all of your academic accomplishments and what others think of you...
who actually thinks they are stupid here and good at just hiding the fact you're an idiot?
I don't mean the "I'm actually smart but I'll be humble and pretend I'm stupid" card but actual honest to goodness you are convinced you are a retard and have no idea how you made it as far as you have.
Even though I have a degree in an STEM field I convinced myself I know nothing and feel utterly retarded.
>>7998015
https://en.wikipedia.org/wiki/Impostor_syndrome
>>7998016
this hit so deep i could barely muster up anything to reply with. i'm not going to say much other than thanks. im going to relax and sleep
Explain Lambda calculus to someone with no compsci background and math only up through simple calculus. I can rephrase stuff in Lambda terms, but still don't "get" its significance.
>>7997190
So you have functions
Which can take other functions as parameters
Like a set theory without urelements
And do ahit with them using really cool notation.
>>7997190
Imagine all you can do is substitute arbitrary terms for variables. Now imagine all terms you have are variables, variable bindings and function application. This is turing-complete.
meme calculus
Am I the only one who sub-vocalizes my thought and even talk to myself in my brain?Am I developing schizophrenia?
>>7996565
thinking you're developing schizophrenia will increase the likelihood of developing schizophrenia.
other than not, no, what you do is fairly normal.
other
>>7996577
>thinking you're developing schizophrenia will increase the likelihood of developing schizophrenia.
U wot m8
>>7996584
thinking you're schizophrenic is a sign of paranoia
which is a sign of schizophrenia
just calm down. if you can't, you were already insane anyway
What does our Neaderthal DNA contribute?
DNA means nothing
>>7996011
Physiology. If you want to devolve into Greys be my guest.
>>7996016
So nothing neurological at all? That's comforting.
Has smoking marijuana been proven scientifically to impair driving?
>>7991525
no but that didnt stop the cops from giving me a DUI
Here's a rule of thumb...
If you need to ask yourself, "will x impair my ability to y and possibly land me in jail"
Assume the answer is yes and don't do x
>>7991525
Probably yes
Driving is a complex task that is notoriously susceptible to influences from outside. Like drinking, texting, eating or simply talking to someone. Almost anything you do has a negative effect on your driving.
https://www.youtube.com/watch?v=DnC9pemWmfs
pshhahahahahahahahahahaahah
Gotta admit looks pretty fake t b h
thats gotta be like a reenactment or something right?
wow
>>7999108
guys? who is controlling the camera?
Is this why time travel is taboo in science?
>go back in time by 2000 years ago
>invest $1
>return back to the present
>worth over $439 million
> go back in time.
Do you think theres a server that keeps track of the universe and its every atom and every subatomic particle and their positions and rotations and configurations and velocity with an infinite unbounded framerate that you can just rewind and "go back in time" ?
>>7998709
spacetime is not really moving anyway. It's just there, there is no need to go "look for something".
>>7998727
yeah, you just move a bit to your left and you teleport to the inexistent past xD
>Americans
>Europeans
>>7998122
elementary proof that no study=minus study
(or negative study for burgers)
Agreed I feel privileged to not be born in those third world places or be a sand nigger
My country is still shit but not that shit.
Hello /sci/, I'd like to ask you about your first job related to your major, so that maybe we can visualize better where does a STEM education actually lead you.
Please structure your posts in this way
>Your bachelors degree
>First job title
>A description of what you did in this first job
>Satisfaction
Restrictions for what counts as a first job:
-It must be related to your major and what you were taught in said major....
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>>7997653
Bump.
>>7997653
>Implying there's people on /sci/ who have graduated, let alone have had real jobs
>>7997774
Well, you don't need to have graduated. Any paid internship that relates to your field is acceptable.
I know there are people here with actual jobs.
What is happening there, after all?
>>7997549
Aliums
>>7997549
I forgot about this
thank you for the reminder anon, AI chan still lives (fuck that tabby's faggot name)
>>7997549
>What
Kepler had some difficulties for a while, not sure much was observed then. Also a shutdown to safe mode too, recovering just the other day. Observations will probably recommence.
