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Archived threads in /sci/ - Science & Math - 356. page
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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 replies and 3 images submitted. Click here to view.
>>
You would assume at point a and b time flow at the same speed.

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

>Can someone explain to me how spacetime can be distorted

Cause Einstein said so
>>
>>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?
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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.
>>
>>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 replies and 2 images submitted. Click here to view.
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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);
...
Comment too long. Click here to view the full text.
18 replies and 3 images submitted. Click here to view.
>>
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...
Comment too long. Click here to view the full text.
>>
>>7852011
My bad, they aren't function declarations but variable declarations. Ignore that.

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>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 replies and 1 images submitted. Click here to view.
>>
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

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...
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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 replies and 1 images submitted. Click here to view.
>>
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 replies and 1 images submitted. Click here to view.
>>
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...
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>>
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 replies and 4 images submitted. Click here to view.
>>
>>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 replies and 16 images submitted. Click here to view.
>>
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...
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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 replies and 1 images submitted. Click here to view.
>>
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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how long before some genius invents the warp drive?
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>>
Or detect gravity distortions by passing aliens.
>>
>>7851509
>muh beaner drive
enjoy blasting your destination with retardedly powerful em
>>
>>7851533
not really. the ship merely has to discharge the em in sequential decelerating steps

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>mfw I'm smart AND I could knock the fuck out of most people on the planet

Feels good man. Get on my level dweebs.
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>>
>>7851470
/brit/, pls go.
>>
>>7851470
But are you cute?
>>
>>7851596

Yep, good looking too.

And 6'4.

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Dear /sci/,

I have a bunch of questions about space and human colonisation. If you could answer or point me to sources, I'd appreciate.

Here's for starters:

>how much is needed to terraform a planet
>can a geologically dead planet be "rebooted" somehow, and how is a dead planet a problem
>could we ever live on Venus

I have many others and will be sure to ask more on what you answer me, if anyone feels like it.
15 replies and 3 images submitted. Click here to view.
>>
>>7851440
>how much is needed to terraform a planet
a lot.

>can a geologically dead planet be "rebooted" somehow, and how is a dead planet a problem
no.

>could we ever live on Venus
no.

If you anymore questions, please do not hesitate to ask :-)
>>
>>7851446
>and how is a dead planet a problem
>>
New questions:

What's the fastest way to terraform a planet? Suppose you have to make up stuff, à la sci-fi, what would you do?

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