Archived threads in /sci/ - Science & Math - 335. page
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Any of you guys know good software to plot graphs (specifically log graphs)? Don't want to remain an excel pleb
>>7918064
Matlab, octave or matplotlib
>>7918083
is rstudio any good at plotting graphs?
IDL is great for graphing
Determinism is bullshit. Here's why.
Consider that some initial conditions existed @ t=0 setting the dominos of space/time into its cascade of causality. This is determinism.
Consider that whatever set the initial conditions at t=0 continued to exist beyond t=0, Therefore, it can continue to interfere with those conditions anywhere beyond t=0.
Determinism makes no logical sense.
What makes no logical sense is your argument
>>7917871
give it a minute to sink in.
>>7917872
Nonsense doesn't magically stop being nonsense given a minute to sink in, anon
![waves2[1].gif](https://i.imgur.com/JJncjxt.gif "waves2[1].gif")
How does 1 tiny radio frequency carry such a dynamic range of sounds to my receiver?
Also how is analog sound different from DAB?
>>7917486
amplitude modulation
or
frequency modulation
pic related. It's actually far simpler than it seems.
the frequency is increased to transmit a 1 and decreased to transmit a 0
your radio listens to the signal, detects shifts in frequency, and converts it to a digital signal
SpaceX fanboys are fucking delusional, A Falcon Heavy is nowhere near big enough for a manned Mars mission. 12 tons to Mars? Fucking lol, the Apollo lunar module alone weighed more than that. Unlike the Moon Mars has an atmosphere which requires a fuckuge heat shield, Mars is millions of miles away which requires months worth of food and water and finally Mars has a decent amount of gravity which requires a sizeable rocket to escape back to Earth. SpaceX is nothing more than a meme company.
>inb4 "muh reuseable rockets!" "muh impeccable...
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>>7917276
yeah they would never do multiple cargo launches and assemble in orbit, its too damn difficult and expensive
>>7917371
>>7917276
It's pretty funny, since ULA keeps pushing multi-launch mission architectures and orbital propellant depots.
>Yeah LEO, whatever that's small fry stuff.
SpaceX has done GTO and BEO launches. Falcon Heavy looks like it will be the most capable rocket to any trajectory until the mid-20s, when SLS testing is done, or SpaceX's own next-generation superheavy is done.
>>7917371
Assemble in orbit of what? Earth? Makes no difference, still in the same gravity well, may as well just go straight there. Mars? So now not only do you want to go there you want to build a space station above Mars too? Also doesn't solve the food problem, this can't stay in space forever.
Is it possible to go crazy from doing too much math?
its actually expected. too much theoretical math is like masturbating too much; it taxes the organ heavily
My wife would argue that the answer is yes.
>>7917193
Yes. Doing any form of heavy logic, be it math, programming or chess, for a prolonged time might trigger mental illnesses. It is not what our brains are intended to be used for.
>tfw you have 100s of studies backing a theory that turns out to be bullshit
http://www.slate.com/articles/health_and_science/cover_story/2016/03/ego_depletion_an_influential_theory_in_psychology_may_have_just_been_debunked.single.html
Cool p-values though Freud
So what is the implication for the hundreds of studies supporting climate change?
>>7916941
>psychology
>hard science
lol, theories in hard sciences can be disproven at any time.. the fact that people dont take soft sciences like psychology with a grain of salt just kills me.
>>7916941
>psychology
>bullshit
Shocking!
Currently there is an asteroid with more platinum then the human race has ever mined. But how do we collect it?
Pic unrelated
>>7916840
What kind of autistic /tg/ manchild put this together
>>7916840
assuming enough energy is required:
build a colony of small robots that would dig into it and rearrange the material inside the asteroid layers which could be separated and lunched into the earth by recurring space ships.
if you have a colony of robots which can operate in that fashion the problem becomes energy supply and distribution.
I can't imagine energy distribution would be that difficult, just give robots the ability to share energy as required, and keep a few of them at reach to supply...
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>>7916840
Rollan
Since the universe is expanding, is it possible that the space our bodies occupy, as well as the earth, etc, is also expanding? If so, it would be relativistic - to us the sizes wouldn't appear to change. A modern day human would be a few hundred feet tall directly compared to a human from a few hundred thousand years ago.
>>7916586
If the space changes accordingly how would you know there was any change in height?
>>7916586
Unlikely, intermollecular forces far outweigh the expansion of space. Besides, just because expansion happens uniformly on an intergalactic scale, there's no way of knowing if the same holds true on a smaller scale.
>>7916601
>intermollecular forces far outweigh the expansion of space
source? genuinely curious on this subject
Someone has written a proof that three-thirds does not equal one.
The proof is here: https://yngthlet.wordpress.com/2013/10/18/the-math-proof-why-three-thirds-isnt-equals-1/
>>7916540
Well duh, (1,1)≠(3,3)
>>7916540
ah but 3/3= 1 not .(9).
so the proof is wrong
qed
>>7916575#
You are wrong you still assume basic mathmatics regarding multiplaction of 10 in decimals doesn't apply to the fractionalization of three thirds, whis the proof is about. Granted the person who wrote this can't write
/sci/ i need to know exactly why men are attracted to females
i mean if i encounter a female ill be attracted to her obviously but when i think about the why, i cant pinpoint it
pheromones? fair enough
soft? dudes can be soft too
warm? dudes too
I dont know help me what the heck google is giving me nothing
Secondary sexual characteristics.
Mostly hips and boobs.
>pheromones? fair enough
I think the consensus is that this is 99% myth, BUT...
Once upon a time, I was dating a beautiful princess, let's call her Gertrude.
But then I went to the beach with friends, without Gertrude (shit happens).
Dancing close with two female friends, their bodies pressed close to mine, I was struck by the fact that they didn't smell like Gertrude.
They smelled fine and all, but they weren't MY woman.
...but hey, who cares?
True...
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>>7916536
fertility likelihood. you want to pass on your genes.
>>7916536
I'm gay so I wouldn't know. For what it's worth, I cant imagine how anyone finds women attractive either.
>dudes r soft and warm
hnnng
I'm a science teacher at an upper elementary looking for some fresh ideas as for what fun, and preferably educational, stuff to do with students. Got a shitload of potassium in different forms and other chemicals but no stuff like high voltage devices or liquid nitrogen.
Mainly looking for chemistry ideas.
Suggestions?
>>7916457
bump
>>7916457
I would recommend not giving elemental potassium to children.
>>7916457
Add a few ml of sulfuric acid to a test tube or ignition flask. Carefully pipette an equal amount of ethanol on top of that. You should see an interface. Drop some potassium permanganate into the tube, a few grains will do. Make sure the tube is in fume hood and secured to a ring stand. The acid generates ozone from the permanganate which oxidizes instantly in ethanol. Generates a lot of heat so don't touch the tube.
Is drinking tap water safe? How can I be sure that the tap water in my city is drinkable. The flint water crisis has me worried.
I dont know or care what is in tap water but when I boil it to get distilled water, whatever's left in the boiling flask looks like a bunch of salts, which isn't surprising desu.
>>7916327
boiling water doesn't distill it though, it just boils it
>>7916327
i can tell youre a seasoned chemist, anon. finally someone who has done their research.
Do scientist have the technology to turn straight people gay?
I'm asking for a friend
>>7916266
I have a friend who claims to have a sexually attractive interest to females. He has no romantic attractive to female. My friend has a romantic interest in males. He's not sexually attractive to them. My friend is wondering if it's possible for science to change his preferences.
Yeah it's called 4chan.
>Everyone hate General Chemistry
Why is this dislike so common? I didn't even major in Chemistry/ChemE and I loved it.
>>7916166
because turboautists here are only interested in math and physics
>>7916166
it was the labs desu.
>>7916166
For me, it's the labs. I actually like the material, but the labs are long, boring and tedious
How do you remember all of this?
>>7916085
Just having a pure interest and enjoyment in the subject.
It's called Selective Learning. There's faggots who can memorise hundreds of lines from films because they enjoy films, a chart with 100 or elements is nothing.
I remember 20 more elements and their placements than the average person I meet, because I was more interested in Chemistry than them, not because they're dumber.
>>7916085
Tell your instructor that if you wanted to memorize things you would study biology. The entire purpose of the periodic table is to be used as a cheat sheet, not for lazy teachers to assign as busy work for students.
Just remember the important ones and your favorites. Properties help a lot. I thought scandium was another boring transition metal but then I learned it was basically a lanthanide.
