Why were we the only intelligent, bipedal species to develop?
Do you think the world would be more interesting if there were others?
>>8606389
No, we would just kill each other, most likely.
>>8606389
we did eat the neanderthals, we'll eat the fuck out of anything. We got goose liver, Turducken, Haggis, fucking goat cheese, oysters, all sorts of shit.
werent there a handful of extinct species similar to, but not quite like, humans? as in pic related
dont really know why theyre extinct but im glad they are desu
couldnt we just use the moon/earths perpetual motion to fuel some kind of energy storing device? Isn't that like free energy? along with solar, wind, and tidal energy?
>>8601904
>couldnt we just use the moon/earths perpetual motion to fuel some kind of energy storing device?
Yeah, that is certainly possible, but it's not exactly useful for us. The thing I'm referring to are fly-bys of space probes. By basically flying past a planet while it's passing by you effectively extract some of its momentum into the probe. You could say it's basically the same as tidal energy. In that case we extract energy from the moon's momentum. It's not exactly what you call "free energy", as the energy actually comes from somewhere and we know from where.
Well yes, technically we already do that with gravitational slingshots which steal a bit of the rotational momentum from the object they slingshot about.
>>8601904
2200 years and no one gave ole' Archie a fulcrum.
Why do all of you care about science and math?
>>8604360
Becuse I broke up with my bf and I need a reason not to kill myself
>>8604360
Why do you care about why we care about science and math?
>>8604360
Because no one else does
I've been playing around with SDL generating 2D patterns like this. The top is the cosine of the distance from the centre, the bottom one is sin X x sin Y.
I'm looking for other simple functions that generate interesting patterns like this. Any suggestions?
What would make a pattern boring?
>>8602399
Good point. All mathematical images are interesting in one way or another.
I'm just looking for others to try. Preferably in the form of Z = f (X, Y).
The bottom one is interesting because it occurs to me that it's essentially the "depth map" for an acoustic tile. Is that because it's the optimum surface area attainable?
Is there nothing then?
/sci/, what happens to those homemade "death jar" experiments that people make when they leave bacteria to fester?
I know they are disgusting but I'm interested in what people call them and how the bacteria evolves/develops to become so dangerous. Do they become common diseases or mutate into something more dangerous?
>>8609866
What the fuck? I've never heard of these.
>>8609866
> become common diseases or mutate into something more dangerous?
Probably both happen. Mostly though, you will just be growing a large colony of pre-existing bacteria.
In normal quantities (undetectable to the eye), those bacteria often would not be in big enough quantities to get you sick (e.g. they might die in stomach acid, snot in your nose, etc.).
But if you ate the contents of a "death jar", you would basically be trying to get sick.
My hunch is that alot of "death jars" are more gross than deadly though.
>>8609866
If you culture a pathogen that would usually never grow into a large colony in the wild, then yeah obviously it can become hazardous.
You probably heard this but I couldnt find it in the sticky so I need a good book recommendation for math. I basically know nothing besides the very basics I learnt in elementary school (I even doubt my counting abilities sometimes). So as a math retard I would like to learn so one day I can get into statistics and understand it for various reasons plus I would also like it for my interest in philosophy of science and methodology. I have no idea of anything in math at all. It was all memorization in my school back in the day in post communistic shithole retardtier kind of education that everyone forgot after they left it.
What would you recommend? I know about khan academy and will give it a try but if its possible I would prefer book to videos. I am hugely uneducated in this area.
Heard about these two books:https://www.amazon.com/Mathematics-Elementary-Approach-Ideas-Methods/dp/0195105192
https://www.amazon.com/Concepts-Modern-Mathematics-Ian-Stewart/dp/0486284247/ref=pd_sim_b_1
But dont know if they require some prior understanding or not. I want to get the general feel and understanding of math in reality, the symbols and would want the why is it as it is if possible. Its not for any kind of uni just for personal use and understanding. Would prefer if its a book or two max and I dont need any deep and/or "start with the greeks" road that would take years to accomplish.
>>8609769
Concepts of Modern Math can be read with someone who has NEVER thought about math at all. It is truly an entry level book that even has funny pictures.
That's not to say it's a bad book, in fact I really liked it when I read it before having studied math.
>>8609769
pick up a used high-school or freshman-college level book on algebra. jump straight to the exercises. if you can't do an exercise, go through the chapter until you understand what to do. that's really all it takes.
liberal amounts of your preferred stimulant will help too, since high-school math is pretty boring
>current flows from the emitter to the collector
>>8609594
isn't that shocking
>>8609594
> it's just a switch, f a m
Current can go any direction you want if it's high enough.
Fellow anons, how hard is it get a ged and how long would it take?
dunno lol
>>8609510
Harder than a high school diploma, and more time consuming unless you really put all your attention into it. It's also looked down on by colleges and employers, and will be a speed bump of sorts until after you get a college degree.
>>8609518
You're saying an employer would rather have someone with no HS diploma over someone with a GED? I find that hard to believe.
Hi, I'm looking for students who are interested in doing a master's in AI. It's for a graphic design project and I need to do some research on my target audience. It's just a short interview by text, so if someone here would like to help me, please add me on steam! http://steamcommunity.com/id/emmyyyyyy
>>8609314
you will get 0,012 participants today if youre lucky.
Other university students who are not interested but are qualified for doing a master's in AI are okay too!
Be careful of scams people.
Hey, /sci/. Is my math right? So I've read about these things called diamond batteries. They're small diamonds that are made by compressing radioactive waste dust into little radioactive diamonds.
They're completely safe, each one emitting less radiation than a banana. They're solid state, with nothing that could break to release it, or wear down. For all intents and purposes, they're totally fine. And they never need to be recharged; each one will output the same amount of energy for over five thousand years. Each one is a pittance, but it just keeps going and going and going.
Allegedly they singularly only produce 300 joules of energy a day. So roughly 1 joule every 4.8 minutes. 10 joules every 48 minutes. A pittance.
According to my shit math, you would need 288 of the things to produce 1 watt. That's 1 watt, consistently, every second of every minute of every hour of every day of the year. 1 watt being one joule per second.
Also according to my calculations, the average American home consumes about 11,000 kilowatt hours every year. Or roughly 30 kilowatt hours a day. 30 hours of using 1,000 watts. Well clearly we're not using 30 hours in a day, so we're using over 1,250 an hour over 24 hours, all year.
Divide that by 60, that's about 20.83 watts a minute.
0.3472222 a second.
Wouldn't this mean if you had just 288 nuclear diamonds, able to produce a joule every second (an even watt), we'd feed 31.5 megawatts into the grid over the course of a year? Or roughly three times the amount of power we consume in kilowatt hours.
A stack 6*6*6 would make an even cube of nuclear diamonds, and it'd produce more watts for the grid than you consume.
am I wrong?
>>8609160
What about all the energy required to make them and then the sum total of the radiation of all the diamonds together?
>Diamonds
>not carbon
Or
>carbon
>radioactive
Use uranium that is truly radioactive
Hey /sci/, I started a blog where I have been roughing out the philosophy behind my work so that others can join. Hope you enjoy. I have left comments enabled, but if it becomes an issue I will regretfully disable them.
https://psychicapparatuses.wordpress.com/
Thanks OHP, will check it out.
>>8609038
Apologies for any typos, I am pretty wired right now and a lot of the stuff is stream-of-consciousness. The whole project is really so that I can maintain a more robust dialogue with myself to better hone my ideas, but I figured you chaps would find it at least a schizophrenic curiosity. Hahaha
>Mathematics is the language of the realm of mind; it is the very fabric of mental activity.
doubt it.
>The image I have in my head is one of those Japanese paper fans, where the basepoint is the hinge, the algebra is the handle, and the paper folds are copies of the algebra held together by algebraic rules.
Interesting.
>copies of the algebra
It's representations?
>held together
do you speak of maps among those copies, or the rules of the algebra that the copies obey?
>duality
>R^n and Z^{\oplus n}
If we were to start from Z^{\oplus n} (which appears inherently countable), and work through to R^n from there, where do we introduce a seed of accountability here?
I read the other posts when I come back from the dentist. Add dates to the posts.
How much mass does a computer gain when it is on?
>>8608902
Depends on the computer
>>8608902
<10 picograms
Zero, as far as I'm aware.
For the power circuitry the electrons that go in also come out, just with less energy.
A student determines the melting point of an unknown compound X to be 133-135oC. The student prepares two separate mixtures and determines the melting point of each mixture accordingly:
Cpd X + Benzoic acid 120-126oC
Cpd X + Cinnamic acid 134-136oC
What is the identity of unknown X?
>>8608817
It's aluminum you're welcome.
How was this done?
>>8608843
The same way all homework should be done. I did it myself, I gave you the hint now finish the proof.
Can anyone solve question 13? I'll give you a million dollars for the proof?
>>8608738
MODS HELP DELETE
>>8608738
I would solve your life's problems for a hot dog but okay.
>>8608753
you mean youd suck his dick- nicely memed m8.
>>8608737
Who's that fag anyway
>>8608751
DONT CALL HIM A FAGGOT I LIEK HIM I CALLED HIM
>>8608756
But who was phone?