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Archived threads in /sci/ - Science & Math - 205. page
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What is your response?
16 replies and 2 images submitted. Click here to view.
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>>8011054
>Be me
>Be in Honors Calculus II
>Cute girl says she needs help with HW due Wednesday (Monday night)
>I say sure but don't know where to meet her
>Suggest she meet me at my dorm
>She says "Sure!"
>She comes over around 8pm
>Help her with her math hw
Comment too long. Click here to view the full text.
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pls dont diss me in a song im a nice guy pls
>>
"Yeah, I'm just in it for the babes, though"

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what is the best element?
31 replies and 9 images submitted. Click here to view.
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>>8010743 (U)
>>
Carbon
>>
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teh greatest

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Biology is science right?

I just smoked some weed and realsied my mum and dad have brown eyes but I have blue eyes, is my dad really my dad or did my mum fuck some dude with blues eyes.

They broke up when I was young because they were always fighting, were they fighting over my mum cheating or something?

I love my dad though and he is awesome but I'm curious.
45 replies and 3 images submitted. Click here to view.
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blue eyes are a recessive gene, my grandma has blue eyes yet none of her children and grandchildren have blue eyes
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>>8010550
My entire mums side of the family has brown eyes same with my dad
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>>8010546
You could always ask.

I'm in the same boat sort of, but instead of eye color it's blood type.

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If you have two arbitrary points on the x-y plane, each with known first derivatives, what is the equation of the interpolating curve between those two points such that it starts and ends at the specified slopes?
21 replies and 2 images submitted. Click here to view.
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Plot the derivatives and find a function that goes through the two derivative values. Take the integral of this function and find c such that the integral equation goes through one of the original points given.
>>
>>8010463
f'(x) = (f'(a)-f'(b))/(a-b) (x-a) + f'(a)
>>
>>8010463
>Plot the derivatives and find a function that goes through the two derivative values.
But that's just restating the problem. What is the function?

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WHY IN THE FUCK IS NOBODY TALKING ABOUT THIS:

http://news.rice.edu/2016/04/14/nanotubes-assemble-rice-introduces-teslaphoresis/
11 replies and 1 images submitted. Click here to view.
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>>8010395
are you just posting this because it has the word tesla in it? It's cool, I guess.
>>
>>8010395
what's so impressive about this?
>>
>>8010395

because idiots like >>8010539 still think tesla is a meme.

>>8010890
imagine much more small and precise coils which work in line assembly but can alter the wiring on every circuit rather than just produce a single circuit layout

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So I'm sure many of us here grew up with Bill Nye in some form, and for some of us he may have even been a big influence on our interest in science, but do we all agree that he needs to STFU?

He's knowledgeable and his heart is in the right place, but he's not an authority and shouldn't be treated as one. He routinely says things that are just plain wrong. But a lot of people (even those more educated than he is) don't want to undermine him because of politics.
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Even Sarah Palin called him out on being an engineer and popsci tv show host and not an actual scientist.

Is Sarah Palin now /sci/?
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>>8009959
Remember how hot she was 8 years ago lol?
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>>8009962
No. I remember how I saw ancient pics of her that were hot but since I haven't been brainwashed by feminists and the MILF-meme to pursue menopausal women I never found her hot during her political career.

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Are all mathematicians this autistic?

https://www.youtube.com/watch?v=-k3mVnRlQLU
34 replies and 5 images submitted. Click here to view.
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>>8009925
>Numberphile
Not even once.
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>>8009925
topkek he is not even a mathematician, he is a physicist you retard.

Are all non-mathematicians this retarded?
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>>8009925
Im more interested in biology and chemistry but i must admit that this is pretty cool

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What immoral experiment do you wish actually happened out of morbid curiosity?

Mine is Humanzee, I would like to know what a half chimp half human hybrid would be like.
22 replies and 1 images submitted. Click here to view.
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>>8009629
Such experiments have actually been done. I'll leave it to your imagination to guess what kinds of regimes permitted this.
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>>8009629
Human neurogenetics experiments. Understanding how genes affect nervous system development and finding ways to breed slightly different but intellectually superior humans.
>>
>>8009629
I want to see a whole country dosed with 500 micro grams lysergic acid diethylamide. Then observed six months later to see how the place changed if at all.

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ITT : we post an idea and the next poster extends it as much as possible until we derive something never thought before
24 replies and 1 images submitted. Click here to view.
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>>8009618
OP is undeniably a faggot
>>
>>8009621
This guy is undeniably a faggot
>>
Our technology is based in electrons.

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I think titan is the next best thing to earth for habitability.

I want to start by talking about its atmosphere. Titan has a nitrogen/hydrocarbon atmosphere which is a bit denser than earth's, and a bit bigger too. Not breathable of course its also -180 C. Whats cool about its atmosphere is its really dense, you can almost float back into space making it ideal for a spaceport going into the deeper solar system. The extreme cold in conjunction with its density makes it challenging to build such a base because its rapidly moving. That combination results in convection quickly removing heat from a base.

But Titans surface is made of lots of ice. Ice is an insulator and more stable temperatures can be achieved by penetrating the surface. This would best be constructed by autonomous robots. Current materials like aerogel with low thermal conductivity could effectively insulate a base. Nitrogen and other elements on the surface can be used to grow plants, and there is a suspected water ocean ~60 miles under the surface - likely much warmer too.

The atmosphere rotates faster than the planet, meaning wind power would be an early sustainable power source - until oxygen can be distilled for using the bountiful hydrocarbons to create power. This power can be used in conjunction with the cold for superconductive hyperloops to create enough artificial gravity to compensate for its smaller mass.

The moon system of Saturn is abundant in elements and could also assist in long term survival. My next contender would be Ganymede - why is everyone so stuck up on colonizing that desert mars?
31 replies and 2 images submitted. Click here to view.
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>>8009536
*The atmosphere rotates faster than the *moon*.

also I want to mention that vehicles could explore the surface easier, easier to keep warm than just a suit alone.

The titan surface exploration suits wouldnt need to protect the wearer from pressure since the atmosphere is dense - just from freezing/suffocating. Antarctica would be a great testing ground.

Titan has a weaker magnetic field, but Saturn protects titan within its giant field.
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>>8009536
The main problem with colonizing another space bodies is the time it takes to get there. I guess that's why Mars is the easiest one right now, maybe in 80 years Titan might be colonizable.
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>>8009676
took 7 years for cassini using almost 20 year old tech

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What happens if you let go of a helium balloon? Where does it end up going?
31 replies and 3 images submitted. Click here to view.
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ballon heavan
>>
It goes really high up in the sky until it reaches equillibrium. It wont escape the atmosphere, itll travel maybe 10 miles up. Then, as the pressure and temp drops, the helium will escape rapidly and the balloon will come right back down.
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>>8009333
i like this response better :3

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Is this what mathematicians actually believe?
https://www.youtube.com/watch?v=SrU9YDoXE88
20 replies and 3 images submitted. Click here to view.
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>>8009205
>vsauce
>mathematicians
no
>>
Honestly? No, it's not.

That video is taking a simple concept and making it way more fucking convoluted and idiot sounding than it needs to be.

We believe in countable infinity and uncountable infinity, and thanks to Cantor's proofs, there can be nothing in between and nothing greater than uncountable infinity.

Countable infinity is the number of elements in the set of all natural numbers. To determine if a set has countably infinite elements, it suffices to see if there exists a bijective correspondence between that set and the set of natural numbers (hence the name 'countable').

Uncountably infinite sets have a bijective correspondence with the set of real numbers. That just means that there isn't a finite number of elements in the set, there IS an order to the elements in the set, and yet there is an infinite number of elements between any two elements in this set. This clearly doesn't meet the definition for a finite set, or a countably infinite set, and yet we can prove such sets exist by means of Dedekind cuts. So we call these sets uncountably infinite sets.

There's slight nuanced definitions like "at most countable", etc., which change the wording a bit, but that's basically it.

That's all there is to it. Very simple concept. Does not need 23 fucking minutes to explain.
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>>8009227
>we "believe" in the infinity and power set axioms
>cantor proved the continuum hypothesis

>very simple concept
and you get it so wrong

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https://www.ted.com/talks/jim_simons_a_rare_interview_with_the_mathematician_who_cracked_wall_street

What sort of math would I need to study to help me predict the stock market?
22 replies and 2 images submitted. Click here to view.
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>>8008882
computer science , AI
>>
womens's studies, art, humanities, literature, history, everything super important and relevant in 2016
>>
>>8008882
>predict the stock market

They don't predict the stock market

They take advantage of inefficiencies resulting from lag and (often consequentially) suboptimal traders

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What are some TED Talks worth watching?
48 replies and 3 images submitted. Click here to view.
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All of them :^)
On of my fucking favourites. I cn't wrap my head around this phenomenon for shit.

https://www.youtube.com/watch?v=2UxGrde1NDA
>>
Careful, many of them are nothing but a bunch of smoke blown up your ass. Here's one worth watching, so you know what to look for:

https://www.youtube.com/watch?v=8S0FDjFBj8o
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>>8008875
>All of them
No. They've gotten worse recently

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Can a mathematician show that: In the number [math] \pi [/math] there will never be a repetition of the numeral 1 one thousand times in a consecutive fashion?

What is the largest repetition, found to date, in [math] \pi [/math]?

Is the statistical analysis of [math] \pi [/math] in terms of repetition a glimpse into a random number generator?
26 replies and 4 images submitted. Click here to view.
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This is [math] \pi [/math] as it walks in 10 dimensions.
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>>8008603
and some more walking [math]\pi [/math]
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The first 1000 digits of [math]\pi [/math] contain ample double consecutive digits (marked yellow), and a few triples (marked green). The presence of the sextuple (marked red) in such a small sample is an intriguing anomaly. For comparison, Ï„ (2Ï€) contains a run of 7 nines (marked purple) near the same point.

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