/sci/ - Science & Math

481KiB, 900x1200, 4iuhm3.png

View Same Google iqdb SauceNAO

Anonymous Sun 30 Jan 05:19:26 2022 No.14165759 View Reply Original Report

Quoted By:

Once either China, Europe, or the USA figures out how to indefinitely sustain nuclear fusion, how long do you think it would be before everyone else "miraculously figured it out on their own?"

6 posts omitted

Anonymous

Anonymous Mon 31 Jan 2022 00:14:51 No.14168580 Report

Quoted By:

>>14167807
Aren't we gonna be out of helium kinda soon

Anonymous

Anonymous Mon 31 Jan 2022 13:01:38 No.14170225 Report

Quoted By: >>14172570

>>14165921
Mining on the moon.
One reactor to supply whole Europe.
I want to believe

Anonymous

Anonymous Mon 31 Jan 2022 13:53:21 No.14170347 Report

Quoted By:

>>14167530
Cool so lets have a fission program to make fuel for the fusion program. You solved it.
>cooling jacket
Sure just process many tons of radioactive solids to extract a few grams of gas, with no leaks. Sure that is going to happen.

Anonymous

Anonymous Mon 31 Jan 2022 14:09:44 No.14170384 Report

Quoted By:

>"miraculously figured it out on their own?"

Fission is even cheaper and already figured out, but erocucks and amerimutts close their nuclear plants while building gas power plants to fight with CO2.

Anonymous

Anonymous Mon 31 Jan 2022 23:29:28 No.14172570 Report

Quoted By:

>>14170225
>One reactor to supply whole Europe.
>Hey Germany, you want to keep your population from freezing? Then you better pay up.
>Romania, you better buy our exports or back to the stoneage with you

733KiB, 2500x2376, isitreally.jpg

View Same Google iqdb SauceNAO

What is 0 · ? really?

Anonymous Sat 29 Jan 14:23:21 2022 No.14162855 View Reply Last 50 Original Report

Quoted By:

256 posts and 25 images omitted

Anonymous

Anonymous Mon 31 Jan 2022 19:47:52 No.14171521 Report

Quoted By:

>>14170349
It equals 5 chairs. Simple as.

Anonymous

Anonymous Mon 31 Jan 2022 19:52:43 No.14171537 Report

Quoted By:

>>14170349
According to my metric, 5*chair = 25.

Anonymous

Anonymous Mon 31 Jan 2022 20:18:55 No.14171662 Report

Quoted By:

>>14163714
>What's an apple multiplied with an apple?
A two-ple.

Anonymous

Anonymous Mon 31 Jan 2022 22:41:10 No.14172326 Report

Quoted By:

>>14163651

Lim n/n = 1
n -> inf

Anonymous

Anonymous Mon 31 Jan 2022 23:25:59 No.14172556 Report

Quoted By:

Just "?" doesn't fucking exist
You need to declare it. What kind of infinite is it? What does it contain?
Only after that can you compare it to other infinites and use it in functions.

136KiB, 700x393, fetchimage.jpg

View Same Google iqdb SauceNAO

Anonymous Mon 31 Jan 02:39:30 2022 No.14169027 View Reply Original Report

Quoted By: >>14169090 >>14169127 >>14169147

Why the fuck would you want to go FORWARD in time when you can go BACK in time and fuck with timelines.

10 posts and 1 image omitted

Anonymous

Anonymous Mon 31 Jan 2022 02:57:12 No.14169090 Report

Quoted By:

>>14169027
Space Plant went back in time, but got caught in a fridge.

Anonymous

Anonymous Mon 31 Jan 2022 03:06:08 No.14169123 Report

Quoted By:

Going forward in time fucks with the timeline in the same way as the present like when Marty stops his kid going to jail. Doc brown carried the information into the past to Marty and went foward and changed the future. That changed the timeline. You have to go forward or to the present to verify the changes. He could have just told Marty to be a better parent LOL.

Anonymous

Anonymous Mon 31 Jan 2022 03:07:50 No.14169127 Report

Quoted By:

>>14169027
You're actually moving back in time as we speak.
Backwards to us is the real forward.

Anonymous

View Same Google iqdb SauceNAO 1642191585785.jpg, 185KiB, 1056x1547

Anonymous Mon 31 Jan 2022 03:13:24 No.14169147 Report

Quoted By:

>>14169027
Forwardlets btfo

Anonymous

Anonymous ## Mod Mon 31 Jan 2022 22:57:31 No.14172409 Report

Quoted By:

This thread was moved to >>>/b/871792822

113KiB, 970x647, download.jpg

View Same Google iqdb SauceNAO

What are some good textbooks to get started in Physics?

Anonymous Sun 30 Jan 23:41:05 2022 No.14168456 View Reply Original Report

Quoted By: >>14170277

I am a Math major and I'd like to into Physics with the aim of just learning what is possible.

22 posts and 4 images omitted

Anonymous

Anonymous Mon 31 Jan 2022 13:15:15 No.14170263 Report

Quoted By: >>14171670

>>14168814
In particle physics, one of the biggest questions is how to derive the mass of the proton. No model can do it.

Anonymous

View Same Google iqdb SauceNAO U#.png, 272KiB, 790x381

Anonymous Mon 31 Jan 2022 13:24:19 No.14170277 Report

Quoted By:

>>14168456
Which languages do you speak?

I propose for you to just go down the standard curricula of your local uni.

If you have background in math, you may have a cognitive disadvantage (usually). Don't make the mistake of confusing learning physics with learning what math is used in physics theories. These are not the same thing.

>>14168814
https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_physics

https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_mathematics

Anonymous

Anonymous Mon 31 Jan 2022 17:14:03 No.14170953 Report

Quoted By: >>14172359

>>14169494
Is Jackson a meme?

Anonymous

Anonymous Mon 31 Jan 2022 20:21:45 No.14171670 Report

Quoted By:

>>14170263
why not just apply force via magnetic field and measure acceleration? am I retarded?

Anonymous

Anonymous Mon 31 Jan 2022 22:48:48 No.14172359 Report

Quoted By:

>>14170953
it's the antimeme

71KiB, 385x257, CB4DB751-A87F-47FB-B933-0D68AA858934.png

View Same Google iqdb SauceNAO

Compression ratio to temperature

Anonymous Mon 31 Jan 12:49:12 2022 No.14170194 View Reply Original Report

Quoted By: >>14171364

So if you take a volume of air or anything else, If its 20 Celsius, and you compress it to half its volume then does that raise the temperature to 40 Celsius?

5 posts and 1 image omitted

Anonymous

Anonymous Mon 31 Jan 2022 19:12:35 No.14171364 Report

Quoted By:

>>14170194
>>14170250
You'll need more than this.

First assume no heat enters or leaves the system.
This means it is an adiabatic process.
https://en.wikipedia.org/wiki/Adiabatic_process#Ideal_gas_(reversible_process)
You want to solve for pressure then use PV = nRT to get the temperature.
You will need more information about the gas to do the computation (you will need the heat capacity ratio)
https://en.wikipedia.org/wiki/Heat_capacity_ratio
This will be a number between 1 and 2 depending on the gas and the initial temperature.
If your initial pressure is P then you final pressure will be P*2^? (for the half volume case). Let T be the initial temp.
PV/T = (P*2^?)*(V/2)/(T_final)
T_final = T*2^(?-1)
T = 293.15K
for T_final to be 313.15K, you would need ? = 1+ log(313.15 / 293.15)/log(2) ~ 1.09521 which would mean you have a gas with many degrees of freedom.
Dry air has ? = 1.4 at 20 degrees Celsius.
This would give T_final = 293.15*2^(0.4) ~ 386.8K = 113.7C

Anonymous

Anonymous Mon 31 Jan 2022 20:57:00 No.14171815 Report

Quoted By:

>>14170592
also the wrong temperature scale unless you live in a universe that has an average temperature of 0ºK and average mass density of 0g/cubic unit. theromocucks unironically think physics was solved in the 1800s. why even study physics if u think 1800s physics is real? if physics was solved more that a century ago why waste time on it?

Anonymous

Anonymous Mon 31 Jan 2022 21:19:19 No.14171903 Report

Quoted By:

How does this work?
https://www.youtube.com/watch?v=Aaxw4zbULMs

Anonymous

Anonymous Mon 31 Jan 2022 22:00:23 No.14172110 Report

Quoted By: >>14172315

I wanted to work out the auto ignition compression ratio of butane, lpg, etc in different conditions

Anonymous

Anonymous Mon 31 Jan 2022 22:39:15 No.14172315 Report

Quoted By:

>>14172110
Butane has ? = 1.09 but for auto ignition you need to include the oxygen and other inert gases in the combustion chamber to get ? for the mixture.
To calculate ? for a mixture of gasses, you first need to compute the heat capacity (at constant pressure), C_p, of the mixture.
You compute C_p of the mixture by adding the C_p of the components.
Then compute the heat capacity (at constant volume), C_v, using:
https://en.wikipedia.org/wiki/Mayer%27s_relation
C_v = C_p - nR. (take care to not to confuse with the molar heat capacity)
You then get ? = C_p/C_v = C_p/(C_p - nR).

3KiB, 200x56, brilliant.jpg

View Same Google iqdb SauceNAO

I bought a 1 year subscription for pic related

Anonymous Sat 29 Jan 23:05:08 2022 No.14164585 View Reply Original Report

Quoted By:

What i'm in for?

16 posts omitted

Anonymous

Anonymous Mon 31 Jan 2022 22:10:42 No.14172167 Report

Quoted By:

>>14164935
You are not a biochem person at all. They all use google. It is good for curating papers when you spend enough time researching a project in a google profile.

Anonymous

Anonymous Mon 31 Jan 2022 22:11:49 No.14172175 Report

Quoted By:

>>14171912
like what

Anonymous

Anonymous Mon 31 Jan 2022 22:24:56 No.14172228 Report

Quoted By:

>>14164935
what the fuck are you talking about?

Anonymous

Anonymous Mon 31 Jan 2022 22:30:49 No.14172260 Report

Quoted By:

>>14171912
Incompleteness does not mean explicitly wrong.

Anonymous

Anonymous Mon 31 Jan 2022 22:34:28 No.14172281 Report

Quoted By:

>>14164935
you must be retarded

244KiB, 450x450, img.png

View Same Google iqdb SauceNAO

Anonymous Mon 31 Jan 21:42:01 2022 No.14172016 View Reply Original Report

Quoted By: >>14172091 >>14172125 >>14172224

Why is there information?

3 posts omitted

Anonymous

Anonymous Mon 31 Jan 2022 21:56:34 No.14172091 Report

Quoted By: >>14172246

>>14172016
Because the universe has not yet reached a state of thermodynamic equilibrium.

Anonymous

Anonymous Mon 31 Jan 2022 22:03:59 No.14172125 Report

Quoted By:

>>14172016
you masturbate to children's cartoons
cringe

Anonymous

Anonymous Mon 31 Jan 2022 22:24:33 No.14172224 Report

Quoted By: >>14172269

>>14172016
The universe, and specifically humans were created with directed information in the form of physical energy. Random loss of information can improve an overcomplicated machine, but random oscillations will never be information. Random chemical reactions cannot set in motion the specific protein-catalyzed reactions required for cells to begin respiration and self-duplication. Life was created by an intelligence that is outside of the universe anon.

Anonymous

Anonymous Mon 31 Jan 2022 22:28:27 No.14172246 Report

Quoted By:

>>14172091
That's the first satisfying answer I've seen so far, thank you.

Anonymous

Anonymous Mon 31 Jan 2022 22:32:43 No.14172269 Report

Quoted By:

>>14172224
Both of your middle sentences are a lie.

855KiB, 1125x1491, ajiJJcFhJ0Mh.jpg

View Same Google iqdb SauceNAO

Anonymous Mon 31 Jan 22:01:54 2022 No.14172117 View Reply Original Report

Quoted By:

scientifically speaking, what are the dangers of nonviolent protest?

4 posts and 3 images omitted

Anonymous

Anonymous Mon 31 Jan 2022 22:20:48 No.14172211 Report

Quoted By:

>>14172135
hahahah seething tranny

Anonymous

Anonymous Mon 31 Jan 2022 22:25:02 No.14172229 Report

Quoted By:

globohomos are going to have some sort of sale flag violence set up to discredit the protestors with, they always do. antifa incoming

Anonymous

Anonymous Mon 31 Jan 2022 22:26:25 No.14172236 Report

Quoted By: >>14172250

>>14172137
Both things can be true at the same time, you know?

Anonymous

Anonymous Mon 31 Jan 2022 22:28:34 No.14172248 Report

Quoted By:

>>14172135
...And nothing of value was harmed

Anonymous

Anonymous Mon 31 Jan 2022 22:29:07 No.14172250 Report

Quoted By:

>>14172236
>Don't gather in groups during the pandemic
>Don't use the pandemic as an excuse to discourage protests

58KiB, 526x526, 248422910_10158022422077471_3248493009899792771_n.jpg

View Same Google iqdb SauceNAO

Anonymous Mon 31 Jan 21:25:20 2022 No.14171933 View Reply Original Report

Quoted By: >>14171954

>tfw want to ask some questions to the prof about the theory we study but I am too afraid I will ask about something that was already adressed in the lecture

2 posts omitted

Anonymous

Anonymous Mon 31 Jan 2022 21:29:26 No.14171954 Report

Quoted By: >>14171958 >>14172103

>>14171933
pls dont. Professors dont like answering high neurotic individuals that cant even decide what to ask

Anonymous

Anonymous Mon 31 Jan 2022 21:30:21 No.14171958 Report

Quoted By: >>14172114

>>14171954
This is why people should abandon education and explore the world for themselves.

Education is for boot licking midwits.

Anonymous

Anonymous Mon 31 Jan 2022 21:59:16 No.14172103 Report

Quoted By:

>>14171954
I know what I want to ask. I just don't understand how evolutionary psychology recognizes emergence of culturally-enforced monogamy which seems to be diminishing reproductive success of high-status men (which actually enforced it and came up with the whole idea)

Also the whole theory seems to be making too far fetched claims. It usually goes like this

>something is observed
>hypothesis is formed around it
>hypothesis is proven true
>SO here's how it MIGHT HAVE been useful in evolutionary past despite there being absolutely no way to actually check to see if this is how it was

At the same time I'm afraid these questions actually have very easy explanations so I don't want to waste her time

Anonymous

Anonymous Mon 31 Jan 2022 22:00:50 No.14172114 Report

Quoted By:

>>14171958
This, if you need to learn something it's because you're stupid anyway

Anonymous

Anonymous Mon 31 Jan 2022 22:17:41 No.14172203 Report

Quoted By:

>be me
>electromagnetics lecture a few years back
>chinese student asks what flux is
>professor: "the surface integral of the field dotted wi-"
>he suddenly stops, slowly turns
>"we... already covered that... didnt we?"
>chinese guy freezes
>turns out he was called to the delousing shower the day we went over flux, missed about 10 minutes of lecture
>he makes a break for the door
>bouncers tackle him before he gets far
>professor puts it to a vote, class votes to deport him
>the night he's in the department holding cell, it comes to light the he had fled from mexico 6 years ago for asking what the derivative of $\frac{\sin x}{x}$ is during a calc 2 lecture
>executed the following morning using the xray spectroscopy laser
shit took like 4 hours but they let me turn it on which was dope

192KiB, 555x300, E61tueAWEAAqB6q.png

View Same Google iqdb SauceNAO

Anonymous Mon 31 Jan 02:44:32 2022 No.14169041 View Reply Original Report

Quoted By: >>14172142 >>14172188

*invents bitcoin*

9 posts and 2 images omitted

Anonymous

Anonymous Mon 31 Jan 2022 21:50:05 No.14172058 Report

Quoted By: >>14172142 >>14172181

I'm not a commie but I still hate this faggot. We don't fully understand how brain works yet this annoying faggot shills his shitty brain chips

Anonymous

Anonymous Mon 31 Jan 2022 22:06:43 No.14172142 Report

Quoted By:

>>14169041
>>14169052
>>14169293
>>14169387
based

>>14171867
>>14172058
debased

>>14171887
50/50

Anonymous

Anonymous Mon 31 Jan 2022 22:13:34 No.14172181 Report

Quoted By:

>>14172058
We understand it well enough for neuralink to be life changing. Maybe not for you but for people with severe epilepsia or paralysis.

Anonymous

View Same Google iqdb SauceNAO eu_bitcoin5.webm, 2MiB, 649x360

Anonymous Mon 31 Jan 2022 22:15:28 No.14172188 Report

Quoted By:

>>14169041

Anonymous

Anonymous Mon 31 Jan 2022 22:17:35 No.14172202 Report

Quoted By:

>>14169387
OH MY GOD IT ALL MAKES SENSE NOW. THE BOG LEGACY WILL CONTINUE, PROJECT OUROBOROS WAS A SUCCESS

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Threads by latest replies - Page 921

Your latest searches

What is 0 · ? really?

What are some good textbooks to get started in Physics?

Compression ratio to temperature

I bought a 1 year subscription for pic related