Archived threads in /sci/ - Science & Math - 637. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
![images[1].jpg](https://i.imgur.com/9ym2Z4p.jpg "images[1].jpg")
What kinds of new STEM majors do you think there will be within the next 80-100 years? Plasma Engineer? Maybe Robotics and Artificial Intelligence will become an Undergrad major?
Which ones do you think will no longer be considered STEM/exist?
>>7649033
PopScience will become a STEM major. It will be based on memorizing disparate trivia and quoting Sheldon Cooper from The Big Bang Theory. The thesis will be to give a vapid but inspirational speech in the style of Neil DeGrasse Tyson while wearing a stereotypical nerd outfit like Urkel. Starting salary: 300 K
>>7649033
Space Welding will be a popular trade.
Aerospace Engineering will branch off into multiple disciplines like computer science has.
Eugenics will make a comeback once human cloning becomes ethical.
Gene-splicing will bring domestic cat-girls onto the market.
>>7649052
No one will remember BBT in 100 years you nerd.
I cant seem to figure this out, and I always overthink stuff when it comes to programming and MATLAB, but any help would be amazing.
Two Gymnasts are competing with each other.
How do I write a program that uses find to determine how many events each gymnast won.
gym1=[9.821
9.923
9.624
9.432
9.534
9.203]
gym2=[9.700
9.925
9.83
9.987
9.354
9.879]
>>7649011
I guess the vectors are something like the time they ran so the one with the lower number won? Just define to variables to denote the number of times each Gymnast won and the interate over the entries of the vectors and increase the variable of whoever has the lower entry.
Im not gonna write the code for you, because it´s your homework.
Lol MATLAB
>>7649054
It is whoever has the highest score, I understand what you are saying, but how would I write that with the vectors? would i just be like vault1=find(gym1:1,gym2:2) ? I just dont understand how you write this piece.
You're a contestant on a game show.
There are infinity doors in front of you, behind just one of those doors is a sports car.
You choose a door and the gameshow host opens infinity-1 doors, leaving behind just two doors - one that doesn't have the car behind it and one that does.
You've probably heard this question before so I'm not going to ask if you would stick or switch. However, is the chance of the car being behind the door you didn't choose literally 100%?
Yes because 0.9999...=1
well you said that host opens two doors and one of them has the car behind it. So you would switch, and have a 50% shot of getting the car. Plus you can't just do infinity-1. instead use n-1.
>>7648976
nvm I thought he kept 2 doors closed. If there are total 2 doors lefts then yeah .9999999999999999999999999999999999 not 1 tho. That would be false.
How do i become able to solve problems that i never faced before? pic as an example that i'm dealing with right now.
People that get it instantly seem like wizards to me, what i'm i lacking?
I'm not asking you to solve my home work, i just need clues on the mindset that i must have to solve it, and every future problem.
Proof by induction might be useful, but then again I'm not a wizard either
>>7648912
Doesn't work, if it did then i would have been a wizard too.
>>7648924
I hate recurring equations, sorry I'm out if ideas, one little thing that might help which you've probably already noticed is that V_n and U_n are always positive
so we want to genetically engineer birds to resemble dinosaurs, where do we start?
This isn't /adv/ but I'd assume biotechnology.
Read jack Horner's book "how to build a dinosaur" and find out for yourself
>>7648903
hit another bongload
Somewhat related query, how long would it take to simply breed octopuses so that they could live more comfortably on land?
mathematically how do people end up winning the lottery? Do they have more luck choosing numbers that statistically get drawn more?
>>7648710
nah
if you'd run the statistics on a few million lotto draws they would all be pretty even
>>7648714
sucks.
There must be a reason certain ones have been drawn more than others.
>>7648717
No there doesn't.
Unless "random chance" is a reason.
>be me in middle school
>wondering how is light affected by gravity if it has no mass
>guy from my class asks how do I know it has no mass
>I tell him that if it did it wouldn't be able to travel at the speed of light
>he laughs in my face and calls me stupid for the rest of the year
>>7648675
>"be me"
>blog posting
Please.
Good. He's right.
If light had no mass, it would accelerate infinitely.
>>7648679
>he still doesn't understand that c is essentially an infinite speed
>he thinks it's "finite" because he's seen the number 299792458 m/s
It's just a number and it's just for convenience. The speed of light is infinite. It's worthwhile to consider this from the temporal perspective of the photon.
Is there a way I can ground myself with a battery?
I have nothing in the house that connects directly to the ground while working with computer parts, except maybe the kitchen/bathroom water pipes.
From what I understand the Earth,the planet, has a negative charge, and I was wondering if I could emulate that with a battery and some other electrical components. Do you guys know if there is a way to do it?
isnt it like, you ground yourself, you ground the computer, no potential difference, no electrical discharges?
how about the ground hole in a power outlet?
>>7648601
The problem is, when you are taking them apart and putting the components back. Since there are many components, you have to set them down on something and while you do that there is a chance that through your movements a charge will be built up, and when you pick them up again the discharge is so small you won't feel it, but your ram definitely will. And I would rather not fuck around with the sockets, since a little mistake might fuck me over badly.
>>7648601
Leave the power supply off at the computer and the wall but leave it plugged in. That will keep the computer frame grounded, and then just always keep in contact with the frame using a wrist strap or something. Batteries dont have a ground, they gave a quasi ground.
Dont work on carpet, work on wood or tiles, and try to use antistatic bags where applicable (only the inside of the bag is esd safe, dont just put it on the bag)
If evolution is true, what will humans evolve into next? How long do you think this evolution will take place?
>>7648481
irresponsible people tend to have more babies, so, thats where we are going
>>7648481
Into Asians.
we're done evolving
Using the image provided, find the distance of the road in feet. The closest answer gets a steam gift.
Don't worry about the white drawing it doesn't mean anything.
>pro tip: math
width*
>>7648402
calculate x
closest answer gets a steam gift
>pro tip: math
The one thing that's always baffled me about biology is how do Proteins know/perform the tasks their performed for? They're just chains of amino acids, how do they read and correct errors in DNA replication? How do they know where to transport things in a cell? How do they even move?
pic unrelated
>>7648398
tasks they're created for*
sorry it's late
>>7648398
It's a machine. How do gears know how to transfer energy and capacity for work within a system? How does the train's wheels know how to stay on the tracks?
It just does. Compounds are complimentary, and the universe on our scale can be pretty completely described mechanically. It's just physics.
>>7648410
But those are simple mechanical mechanisms. A trains wheels don't know to stay on the tracks, the tracks just keep the wheels on them. How does the protein that reads and corrects DNA know what to do? How does it know what segments are wrong?
what the hell does this equal to?
0? infinity? undefined?
z is complex
http://www.wolframalpha.com/input/?i=lim+z-%3E+infinity+e^%281%2Fz%29
http://www.wolframalpha.com/input/?i=lim+z-%3E+0+e^%281%2Fz%29
>>7648337
i mean only the z->0 limit
it is 0 from one side and infinity from the other
what gives?
>>7648344
doesn't a function have to meet certain criteria to be differentiable or have a limit? (continuity or something?) i don't remember
http://www.wolframalpha.com/input/?i=plot%20e^%281%2Fz%29&lk=2
<neat>
>>7648307
>>7648309
>>7648307
>going to tumblr
How does the domestication of a species happen?
Can learned instincts be genetically inherited to offspring and become second nature over the course of hundreds of years? Would that mean that the way your brain is wired is genetically inherited?
I was just hugging my dog and it seemed second nature to him.
Behaviour is primarily genetic. Humans just selected those animals that were receptive to human contact, company, and commands and over time the species changes. Artificial selection is actually pretty interesting. It's crazy how rapidly evolution can occur. Most dog races around these days around no more than 200 years old.
>>7648211
>hundreds of years
in decades
https://en.wikipedia.org/wiki/Russian_Domesticated_Red_Fox
>>7648211
Because when humans would feed wolves they'd raise the nicer ones and kick out the mean ones.
In layman's terms of course.
Okay so i saw this on /b/ earlier. And now i can't really stop thinking about it.
The question was: What speed would a bullet have to go to do massive damage to the earth, or even destroy it.
The reason i'm thinking is cause i know that they said the space ship thingy that went past Pluto that if it was hit by a small grain of dust it would have destroyed the entire thing. So if you could get a bullet to the level of speed would it destroy the Earth if you shot it at the core??
>sorry if this is retarded
https://en.wikipedia.org/wiki/Relativistic_kill_vehicle
how much a bullet weight?
You might as well ask "what speed would a single molecule of tungsten have to be travelling at in order to kill you?"
The earth is too big compared to a bullet. It wouldn't even be able to destroy a medium sized country even if the bullet was as close to c as you wanted
