If you assholes are tired of answering and asking the same questions over and over, I'm going to build a fission battery.
Here's my plan so far:
Refine uranium 238 down to yellowcake. Guaranteed to get a some good radium from impurities in the ore, as well as likely to get some 235 from it, so that will likely end up being my fissile materials, where the 238 will be used to kick off the fission reaction.
This will take place in a chamber and here I could use some input about materials. I'm looking to keep the cost down and use materials I... Comment too long. Click here to view the full text.
Oregon licence plates consist of three letters followed by a three digit number (each digit can be from [0..9]). While driving to work Seth plays the following game: Whenever the numbers of two licence plates seen on his trip add to 1000 that's a win.
E.g. MIC-012 and HAN-988 is a win and RYU-500 and SET-500 too. (as long as he sees them in the same trip).
Find the expected number of plates he needs to see for a win. Give your answer rounded to 8 decimal places behind the decimal point.
>>8043322 Calm down, pick a nice day and try them. Always remember that no matter how fucked your perception is, after you sleep its gone and what you saw will be a faint memory. Irreversible damage to your mind are very unlikely and if you consider yourself a strong willed person at all you should definitely try tripping.
Hello /sci/. I am asking a couple of the boards I respect for some advice and you are one of them. Please hear me out:
As a teenager I loved reading Philosophy. I devoured Nietzsche, Camus, Dostoevsky, Popper, Aristotle etc. etc. but when I finished school I decided to study physics because I fell for the "better do something objectively useful" meme and also because I felt that it would somehow validate me intellectually to do something most people percieved as being hard.
I have now finished my Bachelors and am in the first semester of my Masters and... Comment too long. Click here to view the full text.
>>8043228 You kind of illustrate my point. Wouldn't studying philosophy help me... well, learn more about philosophy? In the last three years of my degree I barely read any non scientific literature and had very few creative thoughts that weren't clever ways of solving a tricky integral. In light of this I never really outgrew "meme philosophy" as you call it.
What would you call "good philosophy" btw? Russel, Wittgenstein, Sartre, Kant, Heidegger?
But to get back to my main point:... Comment too long. Click here to view the full text.
I'm a physics major and I typically dislike "pure" mathematics, but I'm loving this group theory stuff. Only problem is, I hate this book. It doesn't even discuss Lie groups, which are the foundations of field theories in physics. Does /sci/ recommend any good, more advanced texts on group theory and/or other topics in math that are great for contemporary physics?
>>8043173 >I hate this book. It doesn't even discuss Lie groups. Is this bait? I doubt there's a single introductory algebra book that discusses Lie groups. Not even Dummit and Foote does, IIRC, and that's as encyclopedic as you're going to get.
Pretty much everyone who's inexperienced enough to be reading Artin doesn't have enough background in manifolds to understand that.
That said, I think Knapp has written a book on them. I haven't read it... Comment too long. Click here to view the full text.
>>8043173 For basic algebra with a view towards category theory (which can be useful in some areas of theoretical physics - mostly toy models such as topological field theories) I would advise Aluffi's "Algebra chapter 0".
For Lie groups, take up e.g. Knapp's "Lie groups: beyond an introduction". You could also try with "Geometry, topology and physics" by Nakahara, where he introduces many notions from mathematics (such as Lie groups) needed in theoretical/mathematical physics.... Comment too long. Click here to view the full text.
So /sci/, i assume everyone here studies a STEM field and we all know it's very tough and rigorous, but how do you motivate yourself to push when the going gets tough, when you just feel like shit when your mind tells you that you can never get better at what you're doing, that you start doubting that your hardwork will amount you any success, i sometimes get so worried about this that i just lose all motivation in working. Pic related
Someday very, very soon, you will be sitting in an chair in a cheap suit, sweating bullets, while I or somebody like me grills you on what you learned during college to see if you actually have something resembling a clue and are worthy of being employed.
Then you will be expected to use what you learned, 9 to 5 every weekday until you retire or die, to do something useful. Everyone around you is doing the same and if you fall behind, no promotions or bonuses for you.
>>8042989 If you're doing CS at a legitimately good uni, maybe start learning LISP and get used to recursion early. Try implementing matrices in LISP via lists, their arithmetic and useful functions, such as those that give the determinant and inverse of an nxn. This will really reinforce your understanding of what you're dealing with.
It really does depend upon what you mean by your math being bad though.
ITT we're hypothesizing about social/technical aspects of a species developing relative immortality, first, for wealthy individuals, finally for all. Final insights welcome.
OP beliefs, species will experience: - increasing unfairness of wealth distribution - immortals consolidating power - technology boost due to brilliant minds not dying - increasing civil commotions - war on resources and locations - juristic overhaul on ideas like wealth and heritage - innovation boost on age-related problems like cancer, organ replacements and transplants -... Comment too long. Click here to view the full text.
>>8042677 >increasing unfairness of wealth distribution Stopped reading. What makes it seems as if the wealth distribution would do anything but standardize? If nobody has to work, they would all get paid the same.
What is this with this style? Why do people that write "scientific" texts insist on making everything sound so pompous and complicated? With this example it's easy to get the meaning because it's a common concept to know. But once you start reading about more obscure topics or about things that are completely new to you, no matter how simple the concept may be, the way the text is written makes understanding it a very hard. And I'm not talking about the use of domain specific terminology, just this particular "style". It's very wide spread... Comment too long. Click here to view the full text.
I'm in the biz for too long and probably blind to any difficulty in that regard, but your pic in geberal has ab extremely reader friendly text. If wikipedia was for me alone, that three lines could be replaces for a third of a line of first order logic definitions and I't get to know what a median is much more concisely
>The square is the n=2 case of the families of n-hypercubes and n-orthoplexes. That's part of the introductory description comes before the table of contents in the wikipedia article for "square." For a fucking SQUARE.
Quantum entanglement seems to correlate instaneously with no energy transfer because it's simple energy poking through from a higher dimension yes? Imagine the higher dimensional waves moving in the pic related. the waves would intersect with the lower dimension and form multiple points of a similar kind that would appear connected over large distances with no information transfer
What happens to semen (and the sperm) when it is exposed to water? I heard they die because of osmotic shock but searching on the Internet gives different answers. If it does kill them, how long can they survive?
Two types of thing exist: 1. Fitness functions. 2. Things that aren't fitness functions.
The set of all acausal trades forms the first vector in Vector Bayesianism. All other problems can be reduced to off-by-one errors that result from using 0 as the empty set or allowing the first vector of Vector Bayesianism to function as the baseline 0. Everything else must be a matter of taste or else this definition of Vector Bayesianism is incorrect. Whether or not 0-as-base or 1-as-base is more valid ought to be the only undecidable problem.
You, provided proper... Comment too long. Click here to view the full text.
The OP pic is a PNG encoded raster made up of a series of Bezier curves in the (x,y,red,green,blue) vector space. Informally it's known as a cartoon, of the anime sub-genre. The content would otherwise be said to be unrelated to the topic of this thread if not for the fact that the OP pic is a consistent phenomena that can be measured repeatedly by refreshing the page. It is this concept of analyzing the data complexity of human cartoons that gives Vector Bayesianism the "Vector" component of its name.
>>8042012 And since being the fairy Queen has nothing to do with Vector Bayesianism, I can permanently stop using the name so long as nobody cares about all such reputation that might have formerly existed.
>>8042005 >method of generating algorithms So the purpose of generating those algorithm is to potentially understand the structure of phenomena thus mapped. Basically it's my understand of what an advanced digital intelligence would do once it's determined how to change it source code without destroying its "values" (here on out, 'virtues'). You can think of it as the ideal method of creating tool AI, bypassing the need for any AGI-type seed.
Effectively,... Comment too long. Click here to view the full text.
Dopamine, Serotonin, Oxytocin. Three chemicals that just fuck you up. Is there some way to block these? Looking for any receptor blockers or production inhibitors that I can purchase online. And don't try to suggest "overdose on dopamine so you fry the receptors".
>>8041692 Are you too much of a brainlet to use your own fucking common sense to figure out which results of psychology are trustworthy and which are questionable? Do you seriously need the science section of a meme forum to tell you whether we approve of it?
>>8041671 The "philosotards" on /sci/ are just pseudo-intellectual math or CS freshmen who want to believe they are the deepest thinkers for spouting preschool platitudes along the lines of "cannot know nuffin".
Spacetime doesn't move, it's just different from place to place. And yes, it doesn't matter even if you were able to exceed the speed of light; the geodesics of spacetime beyond the event horizon all send you only one way -- towards the singularity.
The literal couch-thing with the associated different methodology (I guess) is the stuff of mid-20th century. People used to talk about it in the Saturday Evening Post, and movies of the period; along with nukes and the space race, it was the pop-sci of the day. IIRC Woody Allen went in for Freud-tier stuff regularly, and the culture has mostly moved on.
But not completely. Remember that Woody Allen is known for living in New York. In fact, since this form of "analysis" is old, IIRC there's... Comment too long. Click here to view the full text.
Hear me out on this one: Traditionally, the stereotype has been that women are more right-brain dominant (creative, intuitive, emotional) and not logical. Problem is, Hemispheric dominance has long fallen out of favor with actual cognitive psychologists and neurologists.
I think you could actually make the opposite case that men are emotional and women are logical, based on the confidence gap between sexes.
Basically, men tend to overestimate their own abilities and take more risks due to testosterone, whereas... Comment too long. Click here to view the full text.
>>8041202 >you know damn well what their circlejerk response would be You're not in luck anon. Most /sci/ people here have nothing to do with social sciences (including me). The rest are /pol/ and /r9k/ lurkers who try to validate their views through science no matter how delusional or biased. I'll give you one guess as to which threads a scientifically illiterate polack is going to reply in, either the one that has to do with actual natural science, or the one that he can easily turn... Comment too long. Click here to view the full text.
All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
This is a 4chan archive - all of the content originated from them. If you need IP information for a Poster - you need to contact them. This website shows only archived content.
If a post contains personal/copyrighted/illegal content you can contact me at firstname.lastname@example.org with that post and thread number and it will be removed as soon as possible.