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Archived threads in /sci/ - Science & Math - 201. page


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I've never taken a physics course or a calculus course. Yet, i'm here at a ok uni majoring in physics. I was at the lowest of the math classes, now I've taken 2 courses this year and i'm taking 2 more math courses in the summer to get to Calc 1 and my first physics course. I've taken the measures of talking to my future physics professors and even set up a project that I've received funding by the school to do. I still have doubts that i'm gonna fail when the the real stuff starts rolling. People try to be nice but are usually shocked when a "physics" major has never taken a calc course or a physics course. So I come here to ask what are my chances of succeeding and if you guys have any tips.
Sorry, about the blog.
46 posts and 1 images submitted.
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I mean, you haven't done anything physics related yet, so get on it. A weak mathematical background will make studying physics pretty terrible.
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Why are you majoring in physics if you don't have any experience with it?
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>>8015365
>lowest of the math classes
you have high goals

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is the answer B? why or why not?
46 posts and 4 images submitted.
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>>8015337
you should atleast put the answer in the god damn choices
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>>8015337
does not compute
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>>8015337
If there's 4, but two are the same, then it's 3 answers
1/3
No possible answer up there

Any math majors in here ever looked at a symbolic logic course from a philosophy department. I'm not talking about some basic "logic" or "critical thinking" course where they introduce deduction and argumentation. What's your guys' opinion on it?
15 posts and 4 images submitted.
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Yeah, I've done it. It was essentially a math class.
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>>8015257
I second >>8015263.

I took several logic courses. Intro Logic, Symbolic Logic, and upper division courses in Computability theory and Set theory.
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>>8015257
Just take the mathematical logic course in the math department.

If two drops of water were shot at eachother with equal force ina zero gravity environment, would the combined drop stop in place?

pic unrealated.

This is my first time on this board be nice
12 posts and 1 images submitted.
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>>8015229
No they'd go thru each other
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>>8015250
That's even cooler
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>>8015250
I disagree on this. Wouldn't there be some kind of collision or attempt of forming larger ball of water between the water drops because of Newton's laws?

Remember, every action has a equal and opposite reaction. So wouldn't they have to be some opposion instead of just passing directly through something?

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Who is the smartest CEO?
39 posts and 6 images submitted.
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>>8015120
bill zuckerberg, ceo of google
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Donald Trump. I thought it was obvious.
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this guy. his app is so beautiful. the pics I share are great because of my camera processing

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Any EEs here? Can you recommend me a program for drawing electric schematics?

Additionally, is there some place where I can search for the damn pieces of an schematic?
27 posts and 2 images submitted.
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>>8015063
pSPICE

>search for the damn pieces of an schematic?
if you mean models for the components, the manufacturers will usually provide a SPICE model on their website.
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>>8015073
>SPICE
I'm not looking for a simulator though. Just something that lets draw schematics. Is pSPICE good for that too?

And I mean that I have some electric schematics on hand (on paper) and I want to find out what some of the symbols are.
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>>8015078
yup, pSPICE comes with a pretty sick GUI front end.

>I want to find out what some of the symbols are.
do you mean that you see for example a transistor symbol you don't know what it means? if that's the case then I can't help you...maybe pick up an electronics book lol.

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Could someone explain to me what flat earthers believe the Earth (and the greater universe) is like, and why? I know that they're idiots, but it is just wrecking my brain trying to imagine a universe where the Earth is flat.
14 posts and 1 images submitted.
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>>8014966
Their reasoning is that since the Earth feels like it's flat, it must be flat. Literally as simple as that. It's just an example of people oversimplifying things for their liking, like evolution or Earth-centrism or whatever.
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>>8014977

I get that, but when they consider what the universe is, or at least what physical existence is, what do they imagine it as?
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>>8014966
Because it is flat.
There is a invisible teleportation ring put in place by god to transport humans to the other side. It is to keep us contained within our planet.

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How feasible would you say this is, /sci/?

http://www.buildtheenterprise.org/
11 posts and 3 images submitted.
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>>8014744
Hull of a boat of course easy. If fly up with low speed, hull can be cheap. Management panel by modern electronics. Fuel and Engine may be more tricky. May be fuel can be from Thorium Reactor and and an engine by Biefeld–Brown effect, but I do not calculated this, just an idea flying in air.
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>>8014744
Not very.
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>>8014858
this kind of ship has to be build in space, I dont think we have the kind of resources to do that yet.

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What are some examples of functions of x and y or complex functions that diverge when approaching a given closed plane figure and stay unbounded/undefined within the enclosed region?
Are poles like this fundamentally different from "thin" poles that diverge into a line-like object (approaching a point)?
What are some functions that generally have an uncountable set of poles?
28 posts and 1 images submitted.
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In particular what are some functions whose set of zeroes or poles is of measure >0?
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Well?
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Surely there are such functions?

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What if they're twins?

I really want to know. I've been thinking about this question for years.
32 posts and 4 images submitted.
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>>8014669
Originally a bird that was not a chicken laid an egg containing a bird that was a chicken.
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>>8014678
Yeah but, where did that bird came from?
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>>8014687
From an egg produced by some other organism that doesn't meet the criteria for being a specific bird. Etc. ad infinitum.

Simple answer to this question is evolution. Sure you can keep repeating this question and ask where life came from...

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So I signed up to be an organ donor today so there can be a small chance in "death" that I may help someone.

I can't lie I get scared just thinking about what they do to my body immediately after "brain death"

Do you guys think we donors feel pain?

Also why are so few people organ donors?
Is it mostly fear like myself?

I feel my fear and limited earthly pain are far smaller concerns than someone else's life that's why I made this decision.


I really fear that I'm going to feel pain why couldn't they use anesthesia even after brain death?
18 posts and 2 images submitted.
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Why the fuck is death in quotes. no genius, you die, you feel nothing, people just like to preserve their bodies, because some reason when they are dead they still think there is sanctity is preserving their bodies.
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and stop being such a pussy, save a life, take some pain if you really think through some spirit "science" that you will feel it
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>>8014643

I don't believe in spirits I just know that the body reacts as if it's in pain.

I know the same can be seen in eating dead octopus and froglegs (add salt)

But still the mere possibility is terrifying as they can keep you body alive indefinitely

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Find formula of the sequence
21 posts and 1 images submitted.
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>>8014500
https://oeis.org/search?q=2%2C2%2C2%2C4%2C6%2C6%2C6%2C8&language=english&go=Search
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>>8014697
I tried that, it's not good.
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e = mc^2

Useful areas of math for CS:
>probability
>stochastic processes
>stats
>signal processing
>graph theory
>combinatorics
>muh babby linear algebra and calculus
>more linear algebra
>group theory
>game theory
>formal languages
>category theory
What else?
32 posts and 1 images submitted.
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>>8014499
triangles
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>>8014499
>group theory
>game theory
Literally irrelevant.
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>>8014511
>game theory
>implying irrelevant
If game theory is so "irrelevant", then why are /v/ and /vg/ the biggest boards on 4chan?

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Hey /sci/, I think this might be up your alley.
I'm not sure if we're just stupid, but we can't seem to determine if it's 2/3 or 1/2. We can all agree it's not Monty Hall.
So, in this situation, you're assured that you chose a meat bun. This removes the double natto box. This turns it into two situations: you chose the meat bun and your other choice is a natto ball, or you picked a meat bun and your next choice is the other meat bun: therefore, 1/2.
Or, do you double count the situation of choosing from the double meat box, as choosing Bun1 and then Bun2 produces the same outcome as Bun2 then Bun1, but counts as a separate choice, and, therefore, you've three situations but two result in a meat bun, therefore, 2/3.
We've arguments for both sides, but no one can apparently be proven true. Someone tried Haye's Theorem doubts that he used the right numbers, or maybe he could have used the right numbers.
I figured you guys might be able to math this better than people who hate talking about video games.
34 posts and 7 images submitted.
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Not this shit again, it's 2/3
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>>8014370
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>>8014370
Can you give me an explanation?
Is it because of the method I described, or is it some other reason?
I'd like to be able to give an explanation the next time this comes up.

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ITT: we share silly mistakes/solutions we realised only after finishing an exam or test

>Making a table of results
>forget to label quantity with units
>mfw only had to put /s and /s^2
>mfw also converted cm to m by x10^-3
>mfw during exam was debating whether to try my best or not
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>>8014133
>Exam linear algebra
>Question about multilinearity, give definitions >for ml in rows and columns.
>Write it out for columns, and write "mutatis >mutandis for the rows".
>Asks to apply ml on a given example.
>Mfw I don't see how this is possible.
>Keep trying and trying, single matrix gets
>split up in 16 matrices...
>I have to hand it in.
>mfw it was simply ml in the rows.
>mfw I didn't notice it because I didn't
>write the full definition.
>mfw mutatis mutandis
On mobile idk how the greentext will be...
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>>8014739
lmao
>>
>be me
>histology class
>quiz asks us to write short answer about desmosomes
>write desmomemes instead
>repeated for entire quiz
>failed

gg

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