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Lockheed Martin is building an interplanetary spaceship bound for Mars in 2028. It will be built with NASA SLS launches and use Orion to ferry crew. No mention of SpaceX.
http://lockheedmartin.com/us/ssc/mars-orion.html
https://www.washingtonpost.com/news/speaking-of-science/wp/2016/05/24/could-this-mars-base-camp-really-send-astronauts-to-the-red-planet-in-2028/
SpaceX BTFO
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According to Ben Rich they figured this out years ago:
>1 : “Inside the Skunk Works (Lockheed’s secret research and development entity), we were a small, intensely cohesive group consisting of about fifty veteran engineers and designers and a hundred or so expert machinists and shop workers. Our forte was building technologically advanced airplanes of small number and of high class for highly secret missions.”
>2 : “We already have the means to travel among the stars, but these technologies are locked up in black projects, and it would take an act of God to ever get them out to benefit humanity. Anything you can imagine, we already know how to do.”
>3 : “We now have the technology to take ET home. No, it won’t take someone’s lifetime to do it. There is an error in the equations. We know what it is. We now have the capability to travel to the stars. First, you have to understand that we will not get to the stars using chemical propulsion. Second, we have to devise a new propulsion technology. What we have to do is find out where Einstein went wrong.”
>4 : When Rich was asked how UFO propulsion worked, he said, “Let me ask you. How does ESP work?” The questioner responded with, “All points in time and space are connected?” Rich then said, “That’s how it works!”
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>>8123897
Umm /x/ is that way...
And that quote has never been verified. Completely unsourced hearsay.
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>>8123897
"OH BOY
I CANT BELIEVE IT'S NOT BULLSHIT"*
-Also someone i guess.
*[citation needed]
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Why don't we cherry pick human sperms to create healthier, stronger and smarter people, just as we do with the animals we eat?
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>>8123739
We do. It's called sperm donation.
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>>8123739
We do, Anon, it's called courting.
Women pick the men they want to have inseminate them, at least, more often than not in the developed world.
As a result, not much happens. Because people, women included, are kinda dumb, and our current society does just fine despite having 0 breeding pressure.
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>>8123739
because we don't eat humans
farm animals and "pure breed" pets are retarded as fuck too.
What are the applications of toruses?
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>>8123677
what are the applications of a cube though?
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It's a compact manifold that is flat.
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>>8123677
they go good with coffee idk what do u want us to say
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>"DNA tests should be compulsory!"
what did she mean by this?
Btw, it's incredible how really every person ever has ancestors from all over the world. Really makes you think.
https://www.youtube.com/watch?v=tyaEQEmt5ls
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Horrible acting tho
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>>8123663
so that people stop being bigots focusing on appearances instead of trying to see each person for who they are.
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>>8123663
>cucks vote fascist law in
>cucks build the infrastructure to crack down on dissenters
>now cucks want to build a genetic database of the whole population that can easily be repurposed for genocide
Hahaha. The pendulum swing is going to be glorious this time.
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Will a large enough sample of pitchblende be able to enrich the U-238 enough to be warm enough to melt gallium?
Also, will it emit gamma rays?
I was wanting to try make a kinetic sculpture where gallium would flow in a physical simulation of plate tectonics, although I note that gallium is lighter when solid which may cause weirdness.
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>>8123559
>Daily reminder that 4chan's first boards were /a/-Anime General, /b/-Anime Random and /c/-Anime Cute
Oh wait, I forgot. You are like 12 and just started coming to 4chan last week. Yeah, you wouldn't know shit about fuck right?
4chan boards may now involve a bunch of other subjects but the sticky cum that holds us all together, regardless of board, is anime. This is a website for people who like anime to come and discuss things that are not anime, with other people who like anime.
If you don't like anime you don't belong here. There is always reddit for the 4chan-lite experience.
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>>8123712
Nah, I'm just someone who likes science and anime.
But seriously, shut the fuck up.
Stop spamming the board with drivel people won't listen to.
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OP here, calm down and look at little piggy.
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ITT we prove that the Kolakoski sequence has the same density of 1s and 2s.
It's defined as the unique sequence of only 1s and 2s starting with 12 such that the [math]n^{th}[/math] element defines the run length of the [math]n^{th}[/math] run of elements.
The sequence starts as follows: 12211212212211211221211. It's also not hard to calculate either once you're used to it, so don't get put off too fast.
Notice that when we group the runs of elements and create the sequence of their lengths, we recover the original sequence.
[1][22][11][2][1][22][1][22][11][2][11][22][1][2][11]
Taking the size of each bracketed group we get 122112122122112, which matches the original sequence.
Conversely, by grouping every pair of elements, and then expanding them with the following rules, we also recover the original sequence.
Here are the rules.
[math]11 \rightarrow 12[/math]
[math]12 \rightarrow 122[/math]
[math]21 \rightarrow 112[/math]
[math]22 \rightarrow 1122[/math]
Group every other pair of consecutive elements in the sequence, and then expand using the rules.
[12][21][12][12][21][22][11][21][12][21][21]
122112122122112112212112122112112
Again, we recover the original sequence.
Note that this last mentioned property can used to generate the sequence.
Also, better methods exist, with the best I've seen allowing you to calculate that [math]n^{th}[/math] element of this sequence using O(log(n)) memory rather than O(n) memory as the naive method hinted at above would use.
Let's do this shit senpaitachi.
https://en.wikipedia.org/wiki/Kolakoski_sequence
https://oeis.org/A000002
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>>8123145
We can write a proof by considering the rules as a singular transformation which preserves a uniform density. Thus equipartition of the 1s and 2s is unchanged while the number of digits increases. Thusly fluctuating from 12->122 to 22->1122 or 21->112 composes a cycle with closure such that the density on the RHS remains uniform.
Right now I would not mind oz.
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>>8123145
Thanks for introducing something to me, but, help me write a novel paper thread sounds a lot like a homework thread.
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>>8123165
Maybe I'm misunderstanding you, but consider this.
1212121212...
If we expand this sequence according to the rules above we get this.
122122122122122...
So obviously, for some sequences of 1s and 2s, we fail to keep an even distribution in the expanded sequence.
How would you handle something like that?
Anonymous
Any high level biologists here? 2016-06-05 05:17:48 Post No.8123113
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Any high level biologists here? 2016-06-05 05:17:48 Post No.8123113
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Any high level biologists here?
Anonymous
2016-06-05 05:17:48
Post No. 8123113
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I'm an undergraduate researcher and I wanted to investigate some proteins involved in LTP and LTD. Obviously as an undergraduate I don't have access to a mouse lab and I don't really have the neurosurgical skills to be dissecting the dentate gyrus.
That being said, if say I introduced AMPAR into an E. coli through a vector plasmid, if I put the E.coli in a Ca2+ or Glutamate solution, would the E. coli measurably change in concentrations? Writing this now I think this might be retarded, as I'm ignoring the scaffold proteins that orientate the AMPAR and the actual delivery mechanism for AMPAR to the membrane (amongst many other things), but bear with me.
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>>8123113
Wait... to add to this, maybe switch out an existing glutamate receptor with a mouse neural AMPA receptor?
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>>8123113
have you tried looking up the methodology of papers to base this on? Review the literature to find a suitable method.
Have you found a supervisor and spoken about this idea?
I'm not a molecular biologist but your method is complicated and a fair bit of error can be introduced. Needs to be simplified.
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>>8123132
The original proposal/presentation for my design is independent, so I can't really get outside help until the proposal (15 minute presentation + paper etc.). Once I propose, I can get a team and we work on the idea and get professor help.
I haven't found anything about anyone inserting neuronal DNA into E. coli, because most researchers just go straight to the source and get slices of the hippocampus or use mutated mice. I can't do either of those unfortunately.
What are we going to do when this is all gone? Is there a way to synthesize more that's less ridiculously expensive and complicated than a fusion reactor?
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>>8123104
Maybe we'll have figured out fusion by the time we run out of helium.
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>>8123104
It is also a major greenhouse gas. All those party balloons? Great fun until you realise that the helium is floa ting up and combining to provide a heat absorbing layer. Bloody kids.
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>>8123222
Helium is not a greenhouse gas. Carry on.
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ITT: List the social sciences in decreasing order of hardness. Or alternatively, what are the most/least hard social sciences.
Anthropology, Archaeology, Criminology, Demography, Economics, International relations, Linguistics, Pedagogy, Political science, Psychology, Sociology
Quick links:
https://en.wikipedia.org/wiki/Social_science
https://en.wikipedia.org/wiki/Hard_and_soft_science
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>>8122665
International relations (If you actually want a job and not a useless degree) > Economics > Linguistics > all the rest > Psychology > Sociology
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Archeology and linguistics are subfields of anthropology...
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>>8123247
What are the major divisions of social science?
All I can think of are Economics, Anthropology, and Psychology.
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What's the best text book for relearning pre calculus over the summer? The education system in canada is fucked and and has skipped over a lot of shit including geometry that I need to relearn.
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>>8122267
https://sites.google.com/site/scienceandmathguide/
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stewart. dont do serge lang cuz its an old meme.
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>>8122432
>I am not OP
>OP clearly indicates a desire to master precalcluus
>it's the biggest word in his graphic
>someone else promptly recommends a calculus text
>someone else is about to try to wriggle out of their stupidity by No True Scotsmanning' that Stewart is shit, not a real calculus book etc, which would both be factually false in one sense, but more importantly it sidesteps the issue because the other anon doesn't want to be called out for giving a stupid/incorrect answer
Is sociology a science?
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>>8122149
No.
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>>8122149
Yes
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>>8122149
Maybe
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Who here does calculus in Banach spaces?
Can someone redpill me on it?
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>>8121863
>pill-faggotry
yeah, kill yourself
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>>8121895
You sound bluepilled as fuck.,
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>>8121863
engineer here
we use them to establish properties of wavelets and to study finite elements techniques, but that's about it I think
Anonymous
Complex trigonometric functions 2016-06-04 15:56:08 Post No.8121778
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Complex trigonometric functions 2016-06-04 15:56:08 Post No.8121778
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Complex trigonometric functions
Anonymous
2016-06-04 15:56:08
Post No. 8121778
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So if the real-valued trigonometric functions correspond to the (unit) circle, then what do the complex trigonometric functions correspond to? Those wonky surfaces living in 4D space?
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>>8121778
Obviously the unit 4-sphere.
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They correspond to the shape that satisfies f''+f=0
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>>8121778
The complex "unit circle" is the set of solutions to [math]x^2+y^2=1[/math] for complex [math]x[/math] and [math]y[/math]. This object is a 1-complex-dimensional (2-real-dimensional) manifold which contains both circles and hyperbolas a cross-sections. It is unbounded.
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>"the smallest object is the atom"
>atom split into nucleus and electrosphere
>"the smallest object is the nucleus"
>nucleus split into protons and electrons
>"the smallest object is the proton"
>protons split into quarks and leptons
>"the smallest object is the quark"
>quarks split into strings
>"the smallest object is the string"
>
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>>8121685
>nucleus split into protons and electrons
>He wasnt smart enough for neuroscience so he studied psychology
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>>8121685
You're supposed to insult physicists at the end of your post to complete the meme.
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>>8121693
She*
Anonymous
Double-slit experiment 2016-06-04 14:56:24 Post No.8121679
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Double-slit experiment 2016-06-04 14:56:24 Post No.8121679
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Hello /sci/.
Has the double-slit experiment ever been tried in a medium that shows the path of the particles?
For example with electrons through that gas that lights up when electrons pass through them. What would happen? Would we see the pattern below or would we see the usual bullshit like when a detector is placed at the slits and just get two bright spots on the target rather than the wave pattern?
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just do it a container and blow some smoke in there. but im sure you'll see small light rays splitting up
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>>8121679
How is that any different from the original? You realize that the screen is essentially showing the path of the particle right? It's a 2D slice of the path. If you put some idealized gas that shows the path you would just get a 3D version of what the screen shows, the diffraction pattern but spreading out.
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>shows the path of the particles
wew