Archived threads in /sci/ - Science & Math - 462. page

What's the lifespan of probes and satellites?

>>8967775
>infinite lifespan like the Voyager
Voyagers will die in next decade, son.

>>8967775
what sattelite is taking a picture of the cassini sattelite in front of that clealry cgi picture of saturn

>>8967586
>social science
What did he mean by this?

>>8967589
t. udergrad

>>8967586
In the same way that you can't actually have a fraction of a person when doing a population census, but you might come up with a percentage that has a decimal, you can't actually have complex numbers - but, as you can see from this analogy, this does not mean they cannot yield real measurements that apply to the real world. They are still useful in the same sense that a percentage of a population of people that has a decimal is still useful information.

>>8967544
Discovering exoplanets is done by monitoring the brightness of a star, then looking at the dimming of that start as a planet passes in front of it. Trying to see if theirs a planet beyond the Kuiper Belt is harder, since you can only infer that there might be something their by looking at, for example, the perturbation in the orbit of another planet. You can't see it directly, since the sun is too far away to illuminate it and planets don't radiate any light.

>>8967544
Universe is big.
Even the solar system is probably too much for you to even visualize in your head.
Exoplanets are detected when they pass in front of their home star and dim its light.
Visually detecting a sub-stellar size object beyond Pluto's orbit is next to impossible.

>>8967665
>>8967671
>Discovering exoplanets is done by monitoring the brightness of a star, then looking at the dimming of that start as a planet passes in front of it.
Then how can they know the composition of exoplanets, like Gliese, the planet ocean, Cancri-e, tje diamond planet...?

Also interested. Taking a course now and it's the most interesting thing I've taken in all of my time in college.

A few things to get familiar with, OP:
>NCBI.
All of it. From the BLAST suite to the databases.
>Ensembl
>Bioinformatics.org
>UnitProt
>CBS suite
All of it
All I can think of right now. Will post more when off work.
>Transfac
Just the free shit.
Also get gud at Python, JavaScript, and MATLAB

>>8968532
you forgot expasy

>>8967452
I'm going into a masters in bioinformatics after summer.
I'm a biochemfag, realized lab work sounds much more exciting than it is. I don't want to spend a single minute doing GuHCl unfolding again.

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astronomy is pretty based, lots of stuff out there that still has yet to be understood or discovered

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You'll just be fed a great deal of bullshit.

>took astronomy
>realized very quickly the professor relied heavily on cgi composites and scifi references
>asked for real pics of earth from space
>had none, told me to stop asking questions

>professor started ignoring questions about Eratosthenes using sunlight to measure earths circumference, but didn't know the light is refracted through the atmosphere so he was wrong.

>go out with telescopes,
>professor describes nebulas and star clusters ,gas clouds of venus and north pole of mars while looking.
>look through telescope
>lights in the sky

>mfw I believe the earth is flat specifically the same time I took astronomy in college.

>>8967341
you are literally retarded

>>8967224
Don't worry about it, you won't get in.

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>>8967228
That's far from being the point silly.

>is it really just for spoiled rich brats

no, their financial aid is fantastic.

>how's studying in one of those as a complete introvert

probably impossible, given that you need to have good extracurriculars.

>i have the impression you're only allowed in if you're part of some kind of secret Illuminati style club

Sorta. Whether or not your parents went is a factor in most Ivy League admissions; that's basically because they don't have the balls to make it literally random to choose from the thousands of 4.0, top <.1% of the class, national mathletics competition winner applications they have.

that being said

>the people there are the epitome of being chads

A good chunk of them are really pretty fucking autistic

it's fake, the people they use in their"experiments"
are actors. and i've seen em on other shows too lmao. i still love vsauce tho.

>>8966810
>Mind fields

Please enlighten me on the next in a multitude of assertions about unverifiable phenomena.

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It's VSauce watered down and not free. They use cheap tricks to make it feel like a reality TV show instead of focusing on the science.
I mean, just look at the first fucking episode:

>Spends almost half an hour teasing how he's going to go into the chamber instead of giving more time for the fucking chamber
>As >>8967244 said, obvious as fuck actors for their "experiments"
>Dramatic camera zooms on his family making over the top reactions to him in the chamber
>Random guy wearing a labcoat to show he's clearly the science man

I didn't expect such a piece of burning trash from Michael. It wasn't even worth streaming to be honest.

Electromagnetic radiation.

>>8966302
>What IS a radio wave?
We dont know.

It's like gravity. Newton figured out how to calculate its strength, but stated that he didnt know its physical cause /explanation. The same type of thing happens with electromagnetism, we just dont know what its all about physically.

>>8966306
But what IS electromagnetic radiation? (Also, is all radiation electromagnetic?)

Also, how do these waves move through vacuums? Are they moving through matter that's so small we haven't discovered it yet?

>>8965666
niggerdyne

>logic isnt complex
brainlet detected

>>8965666
What does that even mean. How is complexity defined?
Compute complexity(logic) and complexity (emotion) to prove the inequality.

>>8963892
.9*.3

>>8963895
Nope
Try again
XD

50%, either it happens or it doesn't

>>8963745
Forgot the link for the other one that never made it past the drawing board,

https://en.wikipedia.org/wiki/Nautilus-X#Status_as_of_2011

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>>8963745
>page 10 bump

One more try. I guess I should have posted something else like the most popular anime waifu as my OP image, but then I probably don't want that type of people ITT anyway.

>>8963745
Reusing station parts is a bad idea. Most of them are made of aluminum. Aluminum has no fatigue limit, which means eventually the modules WILL break. Even aluminum soda cans on earth should eventually burst from variations in atmospheric pressure. It would be bad if this happened.

>>centrifuge
it's just an engineering challenge, no big deal.

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>Hey that's a nice jacobian matrix
>thanks
>too bad it's not a hessian matrix

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>>8963534
Evolution (or whatever) is JUST a theory.

But there was a study that showed that...

I have gluten sensitivity.

>>8963534
>Normies
Fuck off Reddit. Also
>I have EHS
No you don't, you have Munchausen's syndrome.

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>>8962860
Ignore the black 116 and .79/4 in black. It was my first attempt at problem that wasn't erased properly

>>8962860
100% of the square is green.

-Women are stupid
-CS majors are stupid and neckbeard virgins
-Mathematics is for smart girls
-Psychology is run by brainlets, pretty ironic

>engineering
>implying CivEs are even close in iq to EEs
>implying that even within EE that someone specializing in power and energy is even close in iq to someone in electromagnetics

>>8962687

Who?

what course / books should i get for beginner math?

>>8952588
Zorich

>>8952602
meme book. couldn't understand from 2 page onwards