God damn friendos.
EE here going back to school for mechanical now and I can't fucking get it
I don't understand what assumptions you can make in fluid flow, heat transfer, etc
I always seem to have too many variables. I don't know how to use any of the charts and when to use them
Can someone please give me a crash course? I feel like I'm confused on something very very basic
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Couldn't find a job as an EE?
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>>8695998
I couldn't find a job in ChemE
>Engineering brings job security, they said.
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>>8695998
No, I have worked three jobs since graduating. Very lucrative field. Last job wisest man at that firm said to me "Biggest thing I regret, I wish I had learned mechanical also"
So here I am
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https://www.youtube.com/watch?v=vP7lyAKNpj4
Im no flat earther but i CANNOT explain this.
please /sci/ explain whats going on so i can feel a little less crazy.
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What the fuck is the point of this thread?
Why would anyone want to do the math for you?
Figure it out yourself.
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>>8695680
i did the math and at 8 feet of visibility loss per mile it should have around 40 feet of the base missing
yet you can see the whole structure.
why are you mean?
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>>8695673
Anonymous
>tfw no Ice Giant missions 2017-02-23 12:09:46 Post No.8695295
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>tfw no Ice Giant missions 2017-02-23 12:09:46 Post No.8695295
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>tfw no Ice Giant missions
Anonymous
2017-02-23 12:09:46
Post No. 8695295
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>there will never be another mission to Uranus or Neptune in your lifetime, unmanned or manned
>this is the best picture of Neptune you will see before you die
Feels bad man.
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it's a pretty good pic and the planet has no use for humanity, what's the problem friend
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>>8695611
They both have some bretty gud moons we might be able to do something with, someday.
But it true there are more interesting things closer that we'll have more use for sooner.
Still, nice to do some raw science again... I suppose it's likely there's not a whole lot more a cheap modern probe could tell us about them that would be surprising that the old ones haven't already told us, but as technology improves maybe that'll change.
Also, figuring out what the hell happened to Uranus to knock it on its side so badly, might be wise.
There's also apparently another mass the size of Neptune out there we should visit - if we ever manage to find the damned thing.
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>>8695611
Knowledge has inherent value you disgusting pleb.
>but muh starving niggers
No
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You know half the population in any population has less than average intelligence, yet you don't maximize your attractiveness and social standing?
ISHYGDDT
>People high in the need for cognition are more likely to form their attitudes by paying close attention to relevant arguments (i.e., via the central route to persuasion), whereas people low in the need for cognition are more likely to rely on peripheral cues, such as how attractive or credible a speaker is. People low in need for cognition are also more likely to rely on stereotypes alone in judging other people than those high in need for cognition.
t. Petty, Richard E.; Briñol, P; Loersch, C.; McCaslin, M.J. (2009). "Chapter 21. The Need for Cognition". In Leary, Mark R.; Hoyle, Rick H. Handbook of Individual Differences in Social behavior. New York/London: The Guilford Press. pp. 318–329. ISBN 978-1-59385-647-2.
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>>8695062
I'm a manlet who naturally looks like a shota, so I have an excuse.
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>>8695105
Tom Cruise has that and he's attractive
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>>8695062
Psychology on /sci/, oh boy I can't wait to see this thread get flooded with arguments about whether or not Psych is a pseudoscience.
Why the fuck would you want to colonise other planets when your offspring will grow up to be hideous manlets or lankylets due to different planetary gravities than earth?
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We should send manlets to colonize low-grav planets, and lanklets to colonize high-grav planets, that way they'll all end up with normal length.
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>>8694593
Implying we will have children via sexual intercourse in the future implying genetic engineering won't be mastered to counter retarded offspring by the time we start colonising other star systems implying space habits wont be regarded as preferable to planets in the future where gravity and ecosystem can be controlled implying we will ever leave Sol.
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>>8694622
Anonymous
Need help with Statistics 2017-02-22 04:29:32 Post No.8693817
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Need help with Statistics 2017-02-22 04:29:32 Post No.8693817
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For the game mastermind, I need to work out the probabilities of certain combinations of a randomly generated secret code.
Using 5 colours of pegs and 4 peg-holes, the maximum number of combinations that there can be are 625.
What is the probability that of these 625 the secret code contains:
1. 4 duplicate colours
2. 3 duplicate colours, 1 unique
3. 2 duplicates, 2 uniques
4. 2 duplicate colours, 2 other duplicates
5. 4 uniques
Gratitude will be enormous.
Many thanks
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>>8693817
this is trivial counting problam, you can probably robotically apply formulas you have in your book
im a biology person and can solve it, you should probably end it
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>>8693836
i cba to remember if i need to use binomial distribution to solve this or not
can u pls explain
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>>8693840
just count it nigga
1) pick any one color, theres 5, next one must be the same, next one must be the same, next one muxt be he same, thus 5/625 are 4 duplicates
2) first one can be anything, second one can be anything, third one must be same as firs tor second, last one must be same as third, (5*5*2*1)/625
and so on
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Coffee pot method.
Place tubes filled with water in the desert surrounded by mirrors. Pipe vapor up to stratosphere. Hook into jet steam to provide additional strct support
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>>8693601
Using solar-powered plasma arcing?
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Yeah we'll just build some 7 mile tall tubes. They won't fall over.
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better idea:
solar powered drone aircraft equipped with ozone generators
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Can somebody post that greentext about the professor being unable to prove some statement, and then finds a text that he wrote where the proof was left as an excersize for the reader?
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>>8693098
>professor being unable to prove some statement, and then finds a text that he wrote where the proof was left as an excersize for the reader?
i literally searched this string verbatim to get
https://www.quora.com/What-is-the-most-ridiculous-example-of-the-proof-is-left-as-an-exercise-to-the-reader-in-a-mathematics-book
you're welcome, faggot
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>>8693098
Kakutani?
>>
anyone got that /sci/ post about the professor maniacally laughing "it's trivial" with the freaked out TA
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What are some of your favorite metaphors, analogies, or thought experiments which lend some meaning to figures in science/math which cannot be directly comprehended? I recently watched a popular video which called attention to a thought experiment illustrating the size of 52 factorial:
>Start by picking your favorite spot on the equator. You're going to walk around the world along the equator, but take a very leisurely pace of one step every billion years. The equatorial circumference of the Earth is 40,075,017 meters. Make sure to pack a deck of playing cards, so you can get in a few trillion hands of solitaire between steps. After you complete your round the world trip, remove one drop of water from the Pacific Ocean. Now do the same thing again: walk around the world at one billion years per step, removing one drop of water from the Pacific Ocean each time you circle the globe.
>Continue until the ocean is empty. When it is, take one sheet of paper and place it flat on the ground. Now, fill the ocean back up and start the entire process all over again, adding a sheet of paper to the stack each time you’ve emptied the ocean.
>Do this until the stack of paper reaches from the Earth to the Sun. Take a glance at the timer, you will see that the three left-most digits haven’t even changed. You still have 8.063e67 more seconds to go. So, take the stack of papers down and do it all over again. One thousand times more. Unfortunately, that still won’t do it. There are still more than 5.385e67 seconds remaining. You’re just about a third of the way done.
Search any string for the source.
Also, what do you think is the edge of human comprehension in this sense? At what scales do you think figures can no longer be directly understood by us, but only repeated or at best compared to more digestible bits? It seems to me that the number is very small.
Pic unrelated but neat.
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>>8692489
You are now aware that the bad guys took away Pluto's status as a planet just to make that graphic work...
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>>8692489
>metaphors, analogies
>>/lit/
>>
>Pluto
>planet
>>8692878
>luddite
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Alright fags, were gonna settle this. Is the "soul" just the energy your brain uses from food and water? Does the body have any other purpose then to house the mind?
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I don't know and neither do you or anyone who posts in this thread
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>>8691868
Sweet thesis
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>>8691868
And I think I'm right. Conclusion: We need to build ourselves new bodies that can withstand the forces of physics better
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If consciousness is based on quantum phenomenon in a non-local universe, does that mean we emit sub-atomic particles every time we think?
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How about fuck Deepak Chopra and his nonsense
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>>8691273
>Everything I can't comprehend is nonsense
>>
>does that mean we emit sub-atomic particles every time we think?
It's certainly a possible explanation for the observer effect in the double slit experiment. A particle from your mind probably influences the result.
Anonymous
Hartshorne Reading Group 2017-02-20 12:53:32 Post No.8688041
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Hartshorne Reading Group 2017-02-20 12:53:32 Post No.8688041
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I posted a thread a few days ago that I was going to work through all exercises in Hartshorne, starting with Chapter 2.
If anyone else is also interested in working through the book and wants to discuss solutions to various exercises, I created a discord server for it: https://discord.gg/xyRzdCN
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>>8688041
cool, let's get fucked
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>>
b
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At what age did you realize Stem was a meme and that you made a awful choice in majoring in it?
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>>8688329
>majoring in something for the sake of getting a job
this is why cuban's eyes are so soulless
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>>8688329
>billionaire
>having any grounded perception of reality
Can we just all stop for a moment, look at this, and finally start gassing all the top 1 percenters? Just, anyone who earns more than 6 figures, gassed the fuck out. Can we?
That out of the way, I realized it after a year.
I am truly overworked and I see no end to it but... everything else would have been worse. I know that business people are even more overworked, I know that artists don't earn a penny, I know that historians/geographers/geologists either don't make a penny or are as overworked.
It is a reality. You learn it when you become an adult. Every side of life has some suck to it and all you have to do is take a breath and remember:
You don't suck at life, life sucks at you.
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>>8688346
true man. life is pretty rough
Anonymous
I have made a discord study server 2017-02-22 10:16:23 Post No.8694866
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I have made a discord study server 2017-02-22 10:16:23 Post No.8694866
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I have made a discord study server
Anonymous
2017-02-22 10:16:23
Post No. 8694866
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if you would like to join in and help others with, or get help on, any subject in academia please join.
https://discord.gg/H6JuQ
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Does /sci/ agree with this?
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>>8694954
Lol no. I study every time I can.
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>>8694866
it says doesnt work
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how do i self-teach myself machine learning ? websites /books recommendation
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>>8694571
pirate matlab
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https://www.edx.org/course?search_query=machine+learning
https://www.coursera.org/courses?languages=en&query=machine+learning
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>>8694580
free stuff