Archived threads in /sci/ - Science & Math - 178. page
say you have a box
is it possible shrink it such that its new volume and new surface area are exactly half the original?
you should be able to solve this
>>8048566
Suppose there were such a ratio,
Then, it is trivial to see, all boxes have equal volume.
A contradiction.
QED.
>>8048569
what do you mean?
>>8048586
Rest assured, he has no idea of what he's talking about.
Mods this is about math, not philosophy, don't delete please.
So I've been reading a bit of this guy and in one of his examinations of language he gives the example of a pupil given the series 0, n, 2n, 3n, etc. and an order to "add +1" up to 1000. Then the pupil is given the order "add +2", but instead of going on with 1000, 1002, 1004, and so on he misunderstands and adds it up as 1000, 1004, 1008, 1012, etc.
The guy was a genius, a mathematician, so surely it wasn't some random example of misunderstanding. I just can't...
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Come back when you're sober.
>>8045702
a-anon, I was serious...
>>8045632
You are probably missing something, but there is no way for us to tell without the quote in context. Wittgenstein's discussion of math in the Tractatus and thr Investigations is, so far as I can tell, pretty general; that is, his points don't hinge on the accuracy of the mathematicsl propositions they explain. Accordingly, it seems possible that he made a mathematical error, just so long as the correctness of the mathematical proposition was not central to the philosophical statement he was making.
Then...
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Where is the powerhouse of a cell?
the blue bean looking thing. Also there are some stuff thay are mislabeled.
What? You mean the mitochondrion?
>>8045622
Im not a biologist but isnt it the mitochondria ? not sure if its how you spell it in English though
If i become transsexual, will I get to take advantage of affirmative action programs?
>>8045611
Nope
>>8045611
Wrong assumption anon. You have to become transnigger.
Next question?
>>8045618
How can I become transnigger?
So why exactly is this whole AI business not going to fuck everyone up the pooper exept a select few (no you are not one of them)? Surveillance and fighting robots are already a thing, and sigularity-steroids aren't going to make them less of a threat to everyone (again, exept the few people at the top).
Pic unrelated
>>8045560
tinfoil hat bruh
>>8045564
Since Snowden this point is void bruh
It absolutely will, and the best part is that everyone is going to deny that it's happening until it's already too late.
Ok /sci/ I need your help. I used to be an intelligent person with a very good memory. Since December I decided to smoke some weed every once in a while. Long story short I became a stoner using marijuana heavily over the past 4 months. The thing is I can feel myself becoming an idiot. My memory has become shit and I have no motivation to do anything. I feel like this is what a normal person feels like. Anyways I'm looking for a way to get me back to my old self. I want to get my motivation back and my memory. I've already stopped smokeing. Also motivational qoutes...
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>>8045533
There is your problem. Motivatonal quotes are shit that the normalfags use to feel better, but that never work making a person the best. Ask any really successful person and you'll see they never trust in that crap. They start working to be better and look at them.
Just start working and stop being a piece of shit (I have the same problem, just that I don't have and excuse like "I smoked weed xDdXd")
Just quit nail biting after roughly 10 years, naturally its much more compulsive, but if I had to advice anything I'd say: know your habits. This is what really made a difference among motivational quotes, self-development crap et cetera.
>>8045545
Yeah that's why I said they don't work. I didn't want any anons trying to give a motivational paragraph and shit. Anyways the problem arises when I try to study and get shit done. Firstly I don't feel any drive to do it but I power through that and do it. But when I'm studying my memory retention is shit and it frustrates me. This leads me to want to not study and stay in my bed with nothing but self pity and frustration.
Why is Newtonian mechanics still taught when it's wrong?
>why is 3.14 used for pi when it's wrong
>>8045502
It's not wrong, it's inaccurate in a way that is irrelevant for the set of problems it's used in, Newtonian mechanics is still used in many papers.
Because it is valid for most things we encounter in everyday life.
How do you study? What do you study? What are your tricks/tips/hits? How long is ideal per session? What is your method for absorbing information? What prescription meds do you use? How long before a exam/test do you start learning?
Hour on, hour off, switch the subject up every few hours
>>8045432
I just force myself work with whatever time i have, and nullify anger and frustration with some Nujabes beats.
>>8045449
My nigga
Dark matter is sort of the opposite of light, name aside. It has mass, and cannot be observed aside from the side effects of its mass and gravity. It comprises roughly a quarter of all mass in the universe, 27%. That's a little more than all helium in the universe at about 23%
We know that nuclear reactions turn matter into light waves. Light has no mass, so where the hell do those particles with mass go? If dark matter and light are true opposites of each other...
electromagnetic waves - light without mass
dark matter - mass without light
... then...
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>>8045422
>dark matter is sort of the opposite of light
No
And the rest of your argument falls apart from there
>>8045422
>> Dark Matter
>> Only 2% more than helium
If hoverbikes are bullshit then why is the U.S military funding it?
http://www.foxnews.com/tech/2015/06/23/us-army-eyes-star-wars-style-hoverbikes-for-tactical-reconnaissance.html
http://www.hover-bike.com/MA/news/
>"U.K.-based Malloy Aeronautics, an aeronautical engineering firm, to announce that the two companies have teamed up on the development of Hoverbike technology for the U.S. Department of Defense"
>"Malloy are working on the Hoverbike as part of an ongoing research and development contract...
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If you are obssessed with hoverbikes so much, why don't you make one? Shit just make one in simulation if you're fucking poor. If boeing can design an entire airplane in simulation, you should be able to make a hover bike in sim too.
Now go pirate /x/plane. Stop white-knighting for hoverbikes, we're just going to troll you
Because the DoD funds damn near any engineering project so long as someone on the route to funding has a passing interest/belief the thing will work or if the project involves enough Congressional districts and very little to do with how realistic the project is.
>>8045315
The US military can fund whatever they want with a budget that big
Why are students still taught to use compasses? Even engineers and architects don't use them because computers are way better.
So they don't get lost.
Because you don't have cmputers all the time.
Plus, you're a faggot if you don't appreciate the aesthetic of using a paper to draw shit on instead of a fucking screen.
Computers weren't way better in the 90s when most of us were in school.
i am leaving mechanical engineering (i'm at second year now), i am choosing between the 2 in the subject.
i would anyway lose and year, but with e.e. i would have less exams to do in the second year because i can keep some from m.e., while at physics i would have to do second year+ 1 or 2 from the first that werent in the m.e. course
what would you do?
*random image*
i am sorry, in the title should have been "ELECTRONIC ENGINEERING VS PHYSICS"
>>8045192
Go with electronics.
t. a Mech. E.
>>8045190
>implying physics isn't a subfield of engineering
The same argument which proves science is part of philosophy applies.
All-nighter cramming or sleep?
Does sleep even matter bros?
I'm curious about this as well. Does anyone have final exam cramming tips? I have an operating systems exam tomorrow.
>he actually needs to study
What is this machine /sci/ ? my electrical machines teacher will give us grades based on using this machine and i dont know shit about it.Can you guys enlighten me?
>>8044996
its your class and you
A) dont even know what the fucking machine is
B) cant even take a fucking proper picture of it
seriously, learn to enjoy failure.
>>8044996
Does Fisher-Price make a breadboard?
>>8044996
They are mini nuclear reactors. Maybe if you paid attention to your teacher you'd know. But yeah, have fun not being able to blast into outer space.
This is a video of a truck getting thrown off of an aircraft carrier. When it hits the water, it bounces off instead of sinking. Why?
>>8044969
look up physics of stone skipping
>>8044972
B-but that's why I came here.
>>8044974
Surface tension of water, a big chunk of the kinetic energy in the truck is reflected back when it hits
