Does relativistic mass create a gravitational attraction?
If yes, then could an object move fast enough to have a mass high enough to become a black hole?
If yes, when the object decelerates would we be able to conclusively measure the speed of the propagation of gravity?
If no, why not?
>>7764374
>Does relativistic mass create a gravitational attraction?
No. This is part of why the "relativistic mass" concept is no longer taught, as it was confusing and led to questions like this.
>>7764383
>This is part of why the "relativistic mass" concept is no longer taught
Explain.
>>7764405
is this enough to land me a data science/analyst gig when I graduate?
Did you do lots of optimization, linear algebra, and statistics?
>>7764363
>wasting time with a CS minor
>>7764363
I have a CS major and stats minor. I've been actively been looking for data science and data analyst jobs. Most of them are only for Masters degrees in Data Science. So I'd suggest that you get a masters or cross your fingers. I don't think that math alone would help you any. Also learn R, and SAS
What do people think of geologists?
I am thinking of switching out of engineering into geology for my college major and even though it will not change whether or not I switch, I was wondering what /sci/ and people in general think of geologists and about a person when they say they are a geologist or geo-scientist?
nothing?
>>7764328
They call geology "rocks for jocks" for a reason
>>7764328
if you like it, then go for it
i started studying geology years ago, but in my country geology is focused solely on mining and making big bucks for the likes of bhp billiton, and so. you do make big moneys there, though.
where i am now, geology is more field trips, rock looking and geology as you know it
if youre worried about the image you give as a geologist, then youre an idiot, do something because you like it, not because its well perceived
If I were to fly a RC helicopter or quadcopter inside a car while we were driving, would it go to the back of the car, or fly with the cars movement?
>pic related, my quadcopter
>>7764290
please tell me you're trolling
If you fly a RC helicopter on a planet that is spinning, does it get left behind or does it spin with the Earth?
>>7764290
It would move to the back. If, however, it were lighter than air and moves towards low pressure zones (like a balloon), it would actually move forward. When you car accelerates, the air in the car moves towards the rear because it resists changes in motion, like all matter.
Why does /sci/ hate biology and medicine?
Probably that they're terrible because they're not pure mathematics or engineering.
>>7764139
Engineering's a fuckin joke, they can barely derive any proofs, and they say they "study Physics"
>>7764132
why can't we all just get along?
So, I was just reading a book about evolution, and I had a thought about why we aren't immortal. A person who is immortal won't have changing DNA. Every time he has a child, he will essentially be a relic of the past that is constantly tearing down any evolution that has happened since his birth. He will be stopping the evolution of the species on an order of magnitude parallel to how long he ends up living compared to his mortal peers. It is in the best interest of any species to forbid immortality. The only exception I can think of that wouldn't damage the species is a person who never has children after he reaches the average age of death of his species.
Or it's because our bodies are worn out with age, or destroyed by accidents or infections or w/e
holy reddit science batman
>>7764078
Well yes, but I'm talking ideally where the person doesn't die from stuff like that and where the caps on his chromosomes never wear down.
has anyone got any math stuff i can read?
already read hypercube, inside out sphere, fibonacci sequence, golden ration, anything else?
accepting theories also
you basically covered all the essentials of math already
>>7764042
An actual textbook
>>7764049
already have
I want to study the shit out of reinstating a child-like learning capacity in adults. What do I need to read up on? I'll even take advice on career/degree path or whatever, but mainly I'm looking for reading material: I just want to learn how to learn how to learn more efficiently.
>>7763992
That sure is an attractive looking female.
Pretty much every neuroscience undergrad I talk to has had this stupid idea.
If you increase the plasticity of the brain, aren't you just as likely to forget things as you are to learn new things? What's the point of being able to learn a new language more easily if it's at the cost of forgetting how to drive a car, or other potentially important skills that would not be exercised as much while under the theoretical treatment's effects?
>>7763993
The cat exposed her physical flaws. You can't hide those astigmatisms behind the glasses when they are off.
Brain scans of compulsive video gamers have shown that their brains are wired differently. They had stronger connectivity/coordination between the following brain regions:
Auditory cortex (hearing) -- motor cortex (movement)
Auditory cortex (hearing) -- supplementary motor cortices (movement)
Auditory cortex (hearing) -- anterior cingulate (salience network)
Frontal eye field (vision) -- anterior cingulate (salience network)
Frontal eye field (vision) -- anterior insula (salience network)
Dorsolateral prefrontal cortex -- temporoparietal junction
The salience network helps focus attention.
>Hyperconnectivity between these brain networks could lead to a more robust ability to direct attention toward targets, and to recognize novel information in the environment. The changes could essentially help someone to think more efficiently.
However the strong coordination between the dorsolateral prefrontal cortex and temporoparietal junction seen in gaming addicts is also seen in schizos, Down's syndromers, autists, and people with low impulse control. This particular attribute may cause increased distractibility.
http://healthcare.utah.edu/publicaffairs/news/2015/12/122115_WiredForGaming.php
Autists.
>vidya jew made me autistic
I have a family member who is actively destroying what remains of his life because of games at the tender age of 25, and so I'm very interested in what can be done about this, short of banning games.
>>7764018
What does he do? Just play video games all day?
There is literally nothing wrong with studying theoretical physics. All engineers here are just pseudo-intellects who boast about their "god tier" subjects and shun physics.
>>7763915
>I want to study something applied!
>Study engineering!
>I want to study something pure!
>Study mathematics!
>I haven't made up my mind because I am a fuck-up of a human being who will literally never accomplish anything
>Study physics!
>>7763944
Yeah because who wants to study the fundamental structure of our universe when we can build some useless robots or study a bunch of arrows pointing at letters.
>>7763964
>not studying pure mathematics to then go to grad school in theoretical physics and immediately be better than any physics major
>not studying engineering to then go to grad school in experimental physics and immediately be better at everything than any physics major
>b-but then you'd have to take remedial classes
Who cares? You graduate with your dissertation. You will probably get your shit together faster and be able to publish your research first.
it's easy really
QUIT
DRINKING
ALCOHOL
>http://www.worldlifeexpectancy.com/country-health-profile/saudi-arabia
>heart disease, stroke, pneumonia
>http://www.worldlifeexpectancy.com/country-health-profile/france
>cancer, cancer, cancer, cancer, stroke
>http://www.worldlifeexpectancy.com/country-health-profile/sudan
>pneumonia, stroke, tuberculosis
>http://www.worldlifeexpectancy.com/country-health-profile/united-kingdom
>stroke, cancer, cancer, cancer, cancer
>http://www.worldlifeexpectancy.com/country-health-profile/russia
>stroke, std, liver (lol), cancer, cancer, cancer cancer
TAKE THE FUCKING HINT
it should be a social shame, not a proud social activity.
>>7763871
Correlation=/=Causation
>>7763871
you gave me cancer
>>7763871
>tfw my father died because of cancer
>tfw he was an alcoholic
If Nix isn't held together by gravity, then what the hell is keeping it from floating apart?
its sticky
Unix
Do astronauts fap in space? If so how do they dispose of their spunk in zero gravity? If someone used a vibrator in space would it act as a gyroscope?
Space sexuality is unfortunately inhibited by astronauts and visiting scientists wanting to keep their very prestigious jobs. I imagine spunk has enough surface tension to stay together before catching it in a bag, but there's probably no privacy in the ISS except for sleeping bags.
>>7763752
>Do astronauts fap in space?
I'm absolutely certain it has happened at least once.
>Skunk in zero gravity?
Not that different as under 1g, I hold a tissue like 1cm from my tip anyway.
>vibrators?
I imagine they would start to slowly rotate around their off-center CoM and work as a gyro, yes.
>>7763759
>probably no privacy in the ISS
If you have 45 sec to one minute out of sight, there is no problem. I imagine it isn't awfully quiet either, with all the machinery.
I just finished it all up.
I'm pretty proud of it to be honest.
Tell me what you think.
mathgen-1776088002.pdf
Whoops wrong link.
http://thatsmathematics.com/mathgen/paper.php?nameType[1]=custom&customName[1]=Anonymous&nameType[2]=custom&customName[2]=&nameType[3]=custom&customName[3]=&nameType[4]=custom&customName[4]=&seed=1037565743&format=pdf
Here ya go.
>>7763632
Seriously what's the point of usual that casual ass wikipedia reference style? Just use Harvard reference so you don't have to look up the reference list to see who the fuck you're talking about.
>Not posting your real name
Pussy.
Junk and buzzwords, the paper.
Can't wait to find this on Arxiv and send it to you co-authors, as if they exist.
Sorry if this is a dumb question
Just started on MIT's OCW dynamics course, very first problem I've gotten wrong but don't see what I did wrong
pic related
Can anyone explain what I did wrong to get this answer?
>>7763588
The fuck is this?
Dynamics is supposed to be done with diffy Qs, not these high-school tier formulas.
Also step 4 you squared v2 but already took the root on the RHS. It should just be v2 without raising the power.
>>7763601
>Dynamics is supposed to be done with diffy Qs, not these high-school tier formulas.
First dynamics question, comrade
>Also step 4 you squared v2 but already took the root on the RHS. It should just be v2 without raising the power.
Thanks, I knew it would probably be something stupid asf
>>7763606
What the fuck... why did you use energy? This is literally high school Calculus. Fuck, not even. It's literally Algebra II; you don't need to know any physics to be able to understand/solve this problem.
I'll type out the work in just a second.
