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Archived threads in /sci/ - Science & Math - 1886. page

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Posting miroscope stuff.
40 posts and 23 images submitted.
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>mfw I am trying to be an EE
>mfw born too early to be GE
>mfw I can't take it anymore
>mfw when I realise the world won't be able to harvest my creativity
:(
25 posts and 5 images submitted.
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>>7852568
GE? Gravity engineer?
>>
>>7852625
I was thinking general engineering.
>>
EE have no problems finding good jobs. Wtf are you bitching about?

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Hello. I am practicing and i have come at a dead-end.

I need to know:
Whats the Voltage of U1?

What electricity I is flowing?

I am not very good at physics and i need to know how to do this :/
22 posts and 2 images submitted.
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>>7852564
Make sure you don't put pickles on my burger
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>>7852564
look at how shitty you positioned that label and then re-evaluate your life
>>
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>>7852580

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Can someone explain to me how spacetime can be distorted if "distortion" means a relation between two objetcs, and spacetime is not related to any other spacial or temporal absolute in order for it to be considered or even detected as "distorted"?

And, if there is this absolute realm that allows space and time to distort themselves, wouldn't that one be our actual space and time and the fabric described by Einstein only some kind of mesh that gives matter its form?
16 posts and 3 images submitted.
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You would assume at point a and b time flow at the same speed.

But they don't. Hence a relation between two objects.
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>>7852350

>Can someone explain to me how spacetime can be distorted

Cause Einstein said so
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>>7852350
Also, abandon the notion of an absolute frame of reference. You can use relative frames of reference.

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How many of you were academic failures before you got your shit together?
31 posts and 5 images submitted.
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>>7852251
me.
>>
Repeated 8th grade and spent the second time around doing drugs n shit. I'm relatively accomplished though considering my previous positions. Research in a physics lab, taught myself calculus in freshman year up to partial differential equations, studied a lot of classical mechanics and other physics cause I liked it.

Those who have faced no adversity do not really know themselves.
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>>7852259
Doing drugs is not "facing adversity" you stupid first world fuckwit.

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I don't think [math]1^2 = 1[/math]; I think [math]1^2 = 2[/math].

If [math]1^2 = 1[/math] then [math]1 \cdot [/math] has no effect.

How can rationals be countable if real numbers are uncountable?
17 posts and 2 images submitted.
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>>7852069
Fuck off Howard.
>>
1^2 =/= 2 because sqrt(2)^2 = 2
>>
X^0 +1 = Prime number

All natural numbers are prime

Hi so I'm hitting a snag with some C++ I've been working on. I'm trying to make a game of Rock paper Scissots, and I made an RNG generate a number from 1-3 and set R, P, or S to the respective number.

The issue is that the RNG is indeed generating 1-3, but the value of R, P, or S isn't getting set to the variable properly. It's just always S.

I have no idea what's going on... but here's my code.

---------------------

#include <iostream>

using namespace std;

int main()
{
const int MIN_PARAM(1);
const int MAX_PARAM(3);

char playerChoice(0);
int rand(void);
int compRand(0);
char computerChoice(0);

cout<<"*~*~*~* Welcome to Rock, Paper, Scissors *~*~*~*"<<endl<<endl;

//This is where the player selects Rock, Paper, or Scissors
//It will repeat unless the player selects R/r, P/p, or S/s
do
{
cout<<"Which will you choose?"<<endl<<endl;
cout<<"R = Rock"<<endl<<"P = Paper"<<endl<<"S = Scissors"<<endl;

//Player enters their choice. Automatically set to upper-case
cin>>playerChoice;
playerChoice=toupper(playerChoice);

//Check for invalid data
if(playerChoice!='R'&&playerChoice!='P'&&playerChoice!='S')
{
cout<<"Come now, pick a viable option, please."<<endl;
}

}while(playerChoice!='R'&&playerChoice!='P'&&playerChoice!='S');

//Start of computer players' turn

//Random number between 1 - 3
srand(time(0));
compRand = MIN_PARAM+rand()%(MAX_PARAM-MIN_PARAM+1);

//Display random integer to make sure it is always random and 1-3
cout<<compRand<<endl;

//Computer choose R, P, or S based on compRand calculation
if(compRand==1);
computerChoice='R';
if(compRand==2);
computerChoice='P';
if(compRand==3);
computerChoice='S';

cout<<playerChoice<<endl<<computerChoice<<endl;
return 0;
}
18 posts and 3 images submitted.
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Consider using a switch statement for your if blocks. Also you forgot to include <ctime.h> I believe.
Also take your function declarations out of main.
Switch example:
switch(compRand)
{
case 1:
computerChoice='R';
break;
case 2:
computerChoice='P';
break;
case 3:
computerChoice='S';
break;
default:
break;
}
>>
>>7851967
>if(compRand==3);

See that semicolon? That is your statement. Basically, your if statements do nothing because they immediately close.

So this is what happens.

It checks comprand==1, then does nothing.
assins 'R' to computer choice.
checks if compRand==2, then does nothing.
assaigns 'P' to computer choice.
checks if comprand==3, then does nothing.
Assigns 'S' to computer choice.

And that is why it is always S. Your if statements are doing nothing.

Delete those semicolons and your if statements will be fine.

t. Pure Mathematics major - so I am always right about everything.
>>
>>7852011
My bad, they aren't function declarations but variable declarations. Ignore that.

>Taking exam
>Someone with a runny nose sniffs the entire time

I fucking raged so hard today. I turned around and stared at the guy.

My class is full of retarded engineering students and they're like children or wild monkeys.
16 posts and 1 images submitted.
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that's how people cheat you dumb bitch
you're just not in on it because you're a autistic faggot and nobody likes you
>>
>>7851911
They use morse code with their sniffs?
>>
>>7851917
if its multi choice they sniffle/cough to indicate problem number then again for which answer

How come when you go to the doctor and you find out you have a viral infection, they oftentimes don't prescribe anything and say antibiotics don't do anything against viruses? I mean, of course they don't - they're antibiotics - they work against bacteria. There ARE antivirals though. Something as common as the olive leaf (oleuropein) has antiviral activity.

>Oleuropein, however, showed significant antiviral activities against RSV and Para 3 with IC50 value of 23.4 and 11.7 microg/ml, respectively.

>http://www.ncbi.nlm.nih.gov/pubmed/11724241
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good stuff. The whole medical field is there as an institution of pharmecuticals and every part of it is only to increase every aspect of the industry, this cannot happen if everyone is aware of all the good plants out there

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Considering the "publish or perish" culture in academia and the immense stress to always report positive results (or get their funding cut), how can we be so sure gravitational waves were really found today by LIGO?
12 posts and 1 images submitted.
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We can't. No independent confirmation yet, still science by proclamation.
>>
>>7851692
well since the results wont be used in practical industry for decades/centuries, no one really cares.

Leave the guys who actually have to do something with this shit to worry about the results/validity of the tests
>>
>>7851900
Pretty much sums up scientific research.

99% of papers out there are just steaming piles of shit. Some of it is fraudulent but no one cares.

Only 1% of papers ever make an impact

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Do you need to be super smart to contribute to the world of mathematics? I love doing maths but I'm not really smart like some people in my class so doing maths in university is a little scary. Has anyone gone through maths maybe recommend it?
14 posts and 1 images submitted.
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do whatever the fuck you want, you don't have to be half as good as the rest of those fucks to actually get nowhere as well
>>
>>7851678
I don't consider myself overly smart, but I enjoyed university math, those were my favorite classes 2bh (double major math & geology (yeah I know right wtf)).
Don't know about actually contributing though, I was never anywhere near the cutting edge.

Really I'm pretty sure I'm too stupid to actually contribute anything really groundbreaking or new in science (except geology but that doesn't really count cause I can just go map some rock no one has bothered to map and call it a contribution. Fuck geology).
>>
I say just go for it OP. Just because you aren't naturally talented, that doesn't mean you can't. Just means you gotta spend a lot of time with it.

I have just a little bit of talent with math, but I take advantage of that and study my ass off and everyone thinks it just becomes super easy for me.

What matters is your study hours and how you spend free time, not how innately good you are.

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>M-MUH MIT
>WE ARE ELITE
>AMERICA IS BEST
Face it, amerilards, even MIT is infested with cancer and the modern university is in it's last stage of dying.
>pic very related
25 posts and 4 images submitted.
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>>7851615
Ok. Anything else?
>>
>GIRLS CAN PLAY VIDEO GAMES TOO I LOVE PORTAL
Is this 2007? Have I gone back?
>>
>>7851615
but the pic is unrelated

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>year2.016 multiplied by ten to the power of 3
>people believe in newtonian gravity
>even after the discovery of gravitational waves
Why are people so ignorant /sci/?
44 posts and 16 images submitted.
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I don't think anyone actively believes in newtonian gravity do they? Are there people who go out of their way to deny that it's just an approximation?
>>
>>7851603
I think it's ignorance. Most people don't know about general relativity, and whatever doubt informed people had can't exist anymore, now that g waves being the final nail in the coffin of newtonian gravity.
>>
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>>7851570
1. There's no such thing as "newtonian gravity". There are newtonian models of the effect of gravity, but they make no attempt at explaining gravity itself.
2. Classical mechanics is (and will always be) a good enough approximation for many cases. There's no need to use more complex models in those cases.
3. Most people have no use knowing about mathematical models of gravity, it would just be a waste of their time (and society's time if you want everyone to learn it)
4. I doubt your knowledge goes beyond pop-sci anyways
5. Meanwhile most people know how to cook a nice 3 course meal and get laid and you don't. Why are you so ignorant?
In conclusion you're worse than the people who are "ignorant" because you are too but still think you're smart.

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What are the chances that aliens use gravitational waves for long distance communication?
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What are the chances that gravity even exists as we imagine it today?

I mean where the fuck are my gravitons man? We've been looking for them for more than half a century and all we got is this lame higgs boson. Alien tech would probably mindful the shit our of us because their physics is so much closer to the realities of nature, thus allowing them to exploit it, assuming there isn't some horrifying thing about civilizations always killing themselves off before creating self sustaining space colonies or some such.
>>
I think it is plausible, well Matthew McGonaughey's done it.
>>
>science discovery announced
>not even 3 hours later popsci spastics are shitposting about it on /sci/
what a world

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I understand proving a statement true or false. But how do you prove something to be unprovable? I can't even begin to wrap my head around that.
14 posts and 1 images submitted.
>>
what

wouldn't that just be proving it false - proving that you can't prove it
>>
literally the definition of false
>>
>>7851531
Nah

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