>logic based question
If all current theories require some X item to have always been in existence, and for it to have a progression along the time line from state A to state B (big bang to now for example) would that not, also mean that if X item was always in existence that time, also extends infinitely backwards. With this logic state A would be infinitely backwards on the timeline which would mean that at some point our universe did not have the same laws of time, and or physics. Under this condition all current known theories would be possible on a logical level. (for example matter existed because it was going to exist thus it did. This is illogical in our current state, but plausible in this state.)
Took you long enough.
>>8211148
For what?
>>8211150
Nothing!
Is nature nonlocal?
>>8210352
My dick is maximally entangled with your sister's butthole.
Have you ever considered that some things are local and some things are nonlocal?
>>8210356
Sure. But the very idea that nature operates nonlocally on a microscopic level is profound in itself.
I'm writing a text adventure game in C++ in SDL. Is this a waste of time or am I too based, as they say?
>>8209905
enjoying it? good. not a waste of time then.
not sure this belongs here, but congrats you're doing something you like in your spare time mate.
>>8209910
I'm hoping I can sell it.
Hello>
NIH Chief Francis Collins
“I do believe that humans are in a special way individuals and a species with a special relationship to God, and that requires of a great deal of humility about whether we are possessed of enough love and intelligence and wisdom to start manipulating our own species,” he said.
Don't ask my why the fuck he spoke exclusively with buzzfeed about this issue.
https://www.buzzfeed.com/nidhisubbaraman/gene-editing-ethics?utm_term=.pjnb33MeY#.vs1wNNayX
This man is in charge of about 1/3rd of biomedical research funding in America.
Got to love "scientists"
>>8209588
Not sure why you're batiting with that silly sentence.
But, it doesn't really matter. China and UK are doing it, and if America wants to get left behind, then so be it.
>buzzfeed
MathFoundations191: Numbers, polynumbers, and arithmetic with vexels II
https://www.youtube.com/watch?v=gl-9c-Fy6Ao
Why do you not learn Vexel theory?
why do you still care about carrying like a brianlet?
Why do you limit yourself to count to 10^200?
>>8208395
look at this brainlets and their carrying
hhahahahahahahahahahha
>>8208399
>Vexels in base 2
HE HAS DONE IT
The pKa of the compound on the left is 4.27, would the pka of the compound on the right be larger due to the ketone groups?
chemistryisnt sciense
>>8207777
Considering the carbons that would normally stabilize the charge are more electron deficient I would say the pKa would go down
Also we are talking about the pKa of the conjugate base here........right
>>8207811
conjugate acid, with the nitrogen's protanted
have YOU verified the foundations of arithmetic?
>>8207499
I just finished with integers, will do rational numbers tonight.
Tell me when you find the flaw made 2300 years ago, and how it means modern arithmetic is completely worthless
>inb4 it just werks
![lg_lgh790_a3uswh_nexus_5x_32gb_smartphone_1194573[1].jpg](https://i.imgur.com/sM6HzBZ.jpg "lg lgh790 a3uswh nexus 5x 32gb smartphone 1194573[1]")
What would be the steps to build a smartphone from scratch, including making the tools to mine the raw materials to build the machines that build the machines that build the machines etc. to ultimately make a smartphone?
>>8210213
Please provide a clear definition for "smartphone". Because I can explain how to build a handheld computer with a radio but some of the manufacturing in modern cell phones is incredibly complex.
Why do you want to anyway? Bad NIH syndrome?
>>8210213
>scratch
Fug, since you're including the challenge of mining raw materials the usual
- Buy a Panda Board or Pi
- Buy a TFT
- Buy a LiC-Mg battery, thin form.
- Use plastic or metal or wood to craft case
isn't what you're after.
Process would look like this
- Use a stick you find inna woods to move from Stone Age to the 2nd industrial revolution
The first machine is the blast furnace, stone age Ax, chisel, etc. It's the big one, as you only have a stick to do it.
From there, things get pretty easy-- your primary limit is FUEL, wood is pretty good, but labor intensive, and to make the most out of green wood you either need time, or pyrolysis reduction--charcoal.
Next, you want to take your blast furnace and smelt iron and metalic slag from the earth, You get at least 10 kg of iron per 1000 kg of dirt, so get digging with yoru stone age tools.
Make iron tools, and also use green sand casting to form the basic parts for a lathe.
Since you have no tool steel, re-building your shit lathe into a good lathe will be quite a challenge, but that's the next step.
With your lathe, you can next build a drill press, band saw, etc -and you're at the 2nd industrial revolution.
Amid this you'll also make a dynamo and begin converting heat into electricity, which opens up a host of elements for your utility from the piles of slag from your crust smelting open strip mine where a forest was
the NEXT big hurtle is development of a semiconductor fabricator. This is a chicken-egg problem, as you need robots to make SCs, but you need SCs...
The solution is to employ clockwork as your boot strap.
You'll also need a silica crystal purification unit. These are quite trivial-- but, they require a TERRIFIC amount of energy to run. Hopefully you'll have found a wide coal deposit amid your strip mine
The lithography units, oxydation ovens and so forth are all quite simple machines /once/ you have precision MFG.
Tl;DR: industrial boot strap to semiconductor fabrication.
>>8210213
If you wish to make a smartphone from scratch, you must first invent the universe
What real life weapons (that could be carried by a person) could puncture (not shatter or blast) ~4 inches of diamond plating?
Would it be possible for an organic weapon made of earth-like substances (and small enough to be hidden on a normal human sized body) to puncture ~4 inches of diamond plating? i.e. bone spear, wood-like bullet projectile etc..
Also, would it be possible for an organic creature to form a metal utensil that would be as strong as a tempered one? What about a diamond utensil?
In case you're wondering, I was reading some zerg-ish stuff on /tg/ and it got me thinking.
Diamond is heavy and shatters easily with concentrated KE. This is why you only see diamond tools for cutting in CNC machines and the like, and not diamond tanks.
>>8209123
So ~4 inches of steel plating be more resistant then?
>>8209123
What if it was organic material with "the strength" of diamond? That changes it right?
I'm trying to read some papers from 1927, but I'm really struggling with the way Tsiolkovsky presents information here, I think probably just because I am not used to it.
Can someone explain what exactly "f" is here?
Physically or mathematically speaking?
I mean it's some factor, and the answers depends if v is volume or velocity, and how it's related to the length L, or hopefully something of the same unit as it.
Your question is pretty half-assed
>>8208929
I guess whats really throwing me off is how it could be plus or minus the logarithm, and how it could be raised to plus or minus 1.
How come its two things at once, and how do I know which one to use?
>>8208934
Its called an 'ambiguity factor', it was developed by the Spanish mathematician Juan Hernández Valdez.
if a science chan would be made, what kind of boards would you like to see?
>>8208900
a board for porn
gender science & womans studies
>>8208903
Triggered
assuming there are infinite multiple universes there's a pretty good chance that say if you die that there could be another universe where your very same conscience at the time of your death is basically kept alive through some form right?
like people never die completely they just change where they are at at any given time.
>>8208654
memes
> assuming there are infinite multiple universes
shitposting with this magnitude on a science board should be permabanned.
>>8208671
what's the problem?
So I'm an applied math major and people here seem to suggest to build up a programming portfolio to increase my job prospects.
But what the fuck do you guys actually make for in a portfolio? The only programming I've learned is how to use Python and MATLAB for computations, modelling and solving differential equations. I don't have a clue how to actually develop an application. I don't have any good ideas on what to develop. Can someone help me?
>>8208583
not really! a portfolio implies you make interesting small-ish projects, and that means you need to konw what to do. making small projects and posting them on github is a good idea
>>8208583
If you want to get good at programming you need to stop with matlab at once and start writing some actual code.
If you want to remain in the domain of math start looking at for instance a generalized genetic algorithm solver which uses abstractions that make it agnostic to genetic representation, fitness evaluation and reproduction strategy. It's a tall order, but it forces you to think a lot about what the correct abstractions are, and how to generalize
>>8208594
That's fucking interesting man, what language do you suggest I learn? Right now I'm trying out Haskell for shits 'n giggles and I kinda like it.
And why does everyone hate Matlab? It's faster than Python.
Physics open discussion via Google Hangout TONIGHT at 11:59 EST
Hosted on the Youtube channel DraftScience. You can watch the live Youtube video stream+side chatbox, or you can join the Google Hangout and cam up+speak over microphone by clicking the link in the video stream's description box. I will post a link to both the video stream and the Google Hangout at 12 AM EST. You need a Google+ account to join the Google Hangout, but not to watch the stream.
Relevant video: https://www.youtube.com/watch?v=Ui3PM-RNZs8
>>8208209
this not sicence
Excellent
>>8208246
Ok, the room is more about the guy's own views on physics, but it's still an open physics discussion.
Would you agree that "life" (distinct from "existence" which comprises matter that is not conscious/doesn't experience) is simply a succession of uninterrupted experience? And said experience is simply what the entire universe is doing at that particular place filtered through the prism of one's senses and ego? This whole process is changing, warping, chasing entropy at every passing smallest unit of time like an incredibly complicated rapid crashing through its own contours and is only given context, meaning, and a semblance of regularity because of the existence of observers?
For example, before you were born it wasn't waiting in line for 14 billion years-it was just "POOF" you exist. We know that it took many, many, MANY years for Earth to form (and many more for it to become home to sentient life) but it doesn't matter because if nothing is being perceived then that time is perceived to pass by instantaneously. It's an UNINTERRUPTED succession of conscious experience because the absence of the experience is skipped like how two separate audio/video files in an editing program get spliced together-there's simply nothing going on in between.
When you die it will be like before you were born-POOF! Experiencing consciousness as something else. My best guess is as another organism on Earth. It makes not sense that when a fly dies it dies for all eternity-but the popular conception of death for humans is that we DO die for eternity-completely leaving unaccounted for how in the hell we got here in the first place.
And even when Earth becomes unable to support life in 500 million years it won't even matter. It's of no real concern to observers because even if it takes trillions upon trillions upon trillions of years for conscious life to arise again it will necessarily and inexorably be perceived as gapless. There is no waiting because there is no one to wait.
wut
non-consciousness can't exist. so the opposite happens.
temporality/atemporality
tempor(t)ality
>>8207887
>...(distinct from "existence"
I got this far, then dismissed your post as qualia trash. But since someone bumped it; I thought I'd post.
