Archived threads in /sci/ - Science & Math - 276. page
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Has /sci/ fallen to the Thorium meme yet? /uranium masterrace/ reporting in
Thorium is a meme. Uranium succc xD!!
>Opting for the most easily weaponized energy source possible
Isn't /sci/ supposed to be smart or is that a meme too
>>7961244
Ebin
How scientifically accurate was this movie /sci/?
100%
>>7960470
I'll tell you all about it when I see you again.
99.9%
Is there any hope for me to become a mathematician if I find math fun yet I'm bad at it?
>>7957285
Yes, because you can get good with practice
>>7957291
oh look this meme again
>>7957297
Oh look someone who's never practiced again
Do we know how efficient our bodies are converting food into energy or that excess energy into stored fat?
Any time one form of energy is converted to another there is a loss of some kind, like generating electricity from an IC petrol engine, only ~30% of the energy gets converted.
Are the joules from food the amount of joules our body see's? or is it the amount of energy that is stored in that food?
our body uses enzymes - shit that puts chemists to shame.
In some of the cycling forums, I have read food calories to work calories is 15-25 percent efficiency. I am in mobile....Check Google.
>>7962773
all i can seem to find on google is calorie calculators and shit about losing weight... Dont suppose anybody knows of any real papers or journals or anything on the subject?
Beginner, average person trying to learn about physics here. I mentally imaged an object (in this diagram it is a redball) going down a certain path, which is simple enough, yet while doing so, I couldn't help but think of other ways of looking at it- which I tried to express through a faded tan looking interjections and grey sort of half-circular shapes.
If any of you smart fucks recognize what I am trying to see here, can you please show me some resources so that I can look into it further? I'm sure this is elementary stuff for a few of you.
Thanks.
>>7962165
Not sure what your doing
Check out generalized coordinates?
>>7962179
Fuck. Maybe it's one of those thoughts that are too abstract that I can't express it. It's annoying the fuck out of me
How high are you right now?
I've been looking at some diy radio tutorials, and I'm curious about why they all suggest hand-winding your own huge inductor. Wouldn't a smaller inductor from radioshack work just as well?
Small inductors will give you large ripple voltages, which will affect the signal.
Large inductors are expensive.
>>7962178
What causes the ripple?
>>7962265
The small induction.
In a physics lecture the other day, I had a thought.
Plato's "The Cave" is an allegory about how people imprisoned in a firelit cave for their entire life seeing would see the shadows of objects projected on the wall as reality.
This is more true than Plato could have ever known. Everything we see and feel in reality is merely a simplification of an infinitely complex network of gauge fields and wavefunctions.
If string theory is ever verified experimentally, this is even more true. We're all n-dimensional objects projected onto a 3-d surface.
>>7961804
I concur. This is going to go into /x/ dream thread realms but as Mr Zappa said, who gives a fuck anyway. Many years ago I had a dream and all I remember of it was the waking up process of my mind returning from where it had been. I knew I had been aware of, and in, a different dimension. Now I'm not talking about the usual astral projection stuff, floating around some other plane but basically still with a 3D view of things. I mean another dimension in a geometric sense. I was aware that my mind had been functioning...
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>>7961913
Brains are incredible, this is similar to some of the effects psychedelics have. For example, LSD changes the way certain neuro-receptors bind to neurons in the brain. This changes the way the brain sends signals, essentially changing the wiring that makes up who you are. The reason people see fractals is that the neuroreceptors in the visual cortex are firing in entirely new and different ways.
With psychedelics and dreams like yours, you can literally experience what it is like to be an alien, with a completely...
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>Plato's "The Cave" is an allegory about how people imprisoned in a firelit cave for their entire life seeing would see the shadows of objects projected on the wall as reality
That isn't what the allegory is about: that's how it's expressed. The purpose of his allegory was to demonstrate the effect of philosophy on the human mind (at least how Plato saw it), and especially to draw attention to the persecution of philosophers (read: Socrates) by a government.
Plato's theory of forms is not the same...
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Probably going to regret posting on this board but...
How does /sci/ feel about feathered theropod dinosaurs outside of the coelurosaurs family?
> feathered dinosaurs
are you gay or something ?
>>7961570
In science you don't "feel about" anything
Get out.
>>7961601
Just trying to get opinions, dude.
Ok /sci/, how many triangles are in this image?
I'd say about 7. Maybe a bit more
You'd have to calculate the integral, multiply that by 1/2 * bh (area of a triangle) and multiply again by the volume of a hexagonal figure.
>>7960923
yeah but what hexagonal figure
How do I learn all physics?
jump from a plane, you will experience everything you need to know
For every bullshit equation you can't understand thereis an geometric representation to get it on sight.
>>7960324
Read all textbooks
I heard that NP problem is a problem which can be solved in polynomial type in a non deterministic turing machine.
why is that equivalent to easily "check if the answer to the problem is right" as everybody says?
>>7959724
For many NP problems, deciding a solution is the process that's NP. Checking a solution is usually P. An example is the knapsack problem, that is, optimizing for maximun value the load in a container given weight and value of all items and a max weight. Its very easy to check if something is a solution is valid (sum weights. Is it over the max?), but not so much to find that solution.
>>7959724
Find the roots to some polynomial like [math]3x^13 - \dfrac{1}{5}x^7 - 2x^2 + x^2 = 0[/math]; the actual problem will take a relatively long time to compute compared to checking the solution (i.e. plug in the presumed solution, is the number 0 or not? quick and easy).
>>7959874
Whoops, meant [math]x^{13}[/math]. Anyway that's just a example of something ridiculous that will take a long time to solve.
Anyone here work in biotech or GMP environments?
>>7959625
My first year out of undergrad (back around 2011 - 2012) I had a few temp jobs in CROs and small biotech firms. What's up?
>>7960592
Not OP, but do you have any advice on what you did well or what you would do differently? Specifically I'm a chemistry major graduating in a month.
>>7959625
My friend works in biomedical research. His company is working on cancer research.
From what I gather he spends a lot of his time cataloging genetic information, taking and analyzing samples and killing lab rats, either once they get too sick or the experiment is concluded.
I just proved that time is made up of indivisible parts of time in pic related (the picture attached to this post). Which is just one proof/deductions in a series of proof/deductions. with each getting more impressive, important, and relevant than the previous one.
>>7959547
>an infinite amount of sequentially passing parts f time can not finish happening
sup Zeno
>>7959547
What reason do we have to believe 2-5?
>>7959552
Xeno* of Elea.
Kidding.
But is that all you have to say? Com'n now, I put a lot of thought and effort into making this. It was the hardest proof until you get to figuring out what the first few indivisible parts of time were.
What exactly do mathematicians even do?
They make $300k starting duh
>>7959295
They jerk eachother off making fun of engineers and talking about how masterrace they are eventhough 99% of them wont ever contribute anything to the advancement of mathmatics and they will slowly rot away working at some coffee place
>>7959295
Smash mad pussy and pop bottles every wkd. Shits so cash.
![gfs_T2ma_us_36[1].png](https://i.imgur.com/8jGNh5S.png "gfs_T2ma_us_36[1].png")
![gfs_T2ma_namer_32[1].png](https://i.imgur.com/UQRuFSK.png "gfs_T2ma_namer_32[1].png")
