Archived threads in /sci/ - Science & Math - 328. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
well?
the A card, The K card, And the 2 card.
>>7928079
Sorry, got I have this one wrong. ALL of them must be checked. Ya got me.
>>7928075
This exact same post was posted weeks ago
fuck off
Since there are a lot of stupid threads now, let this be the one all-purpose thread where you can ask a person who knows calculus anything.
>>7927959
I haven't done calculus in a while, but I never quite understood the equation of work. Please, explain as if you're talking to someone with an IQ of 70.
>>7927993
It is force times how far out you are in the line of work. Meaning, if you are doing work on a pole extending outwards, the force of gravity at each point times your distance is the ammiunt of work at that point. It is defined to be force times distance.
>>7928001
Thank you.
Do insects have consciousness? Or what do they experience, if consciousness is not the proper word?
Insects don't experience anything, they just respond to stimuli. If I programmed a basic robot to look for food and run away from what I programmed it to be perceived as danger, would you ask "What does the robot experience?". It doesn't experience shit, it just receives inputs, processes those inputs and produces outputs in the form of actions. You're heavily personifying by thinking they have some kind of internal experience.
Its like a robot. It's brain is a little computer of preprogrammed actions to perform in response to certain stimuli. That's it. Their non-localized nervous system doesn't allow for any more than that.
>>7927981
Can you sum up how it works for dumb people? How did it evolve to be so perfect? And can't insects learn?
Can depression be willed on oneself? Or is it purely genetic, circumstantial, and social?
>>7927874
I was under the impression it was socially developed. Unless you have an issue regulating serotonin properly
>>7927874
Get a CBT book and apply the techniques everyday.
How long would it take to travel from Venus to Mars with a solar sail?
Let's say the ship is 500 tons. Let's say the sail is 100 meters times 100 meters.
I might want to use that in a book I am writing at the moment, can you tell me /sci/?
>>7927744
Interesting proposition. Do you have any idea the ammount of calculations you are asking for? I will give it a shot unless I get bored.
>>7927752
There is quite a lot of info about calculating the properties of these sails on the wikipedia article, but I don't have any science education beyond high school so I am understanding fuck all to be honest.
https://en.wikipedia.org/wiki/Solar_sail
>>7927744
A long damn time, because you'll need to swing around planets to use them to sling shot the ship to Venus. On the final approach, you won't be able to use the sail itself, unless you use the previous trajectory that puts you between the sun and venus.
So, we still don't know where 95% of the mass in the universe comes from. Is that correct?
>>7927582
>we
speak for yourself, kid
>>7927584
You know? What is it?
>>7927584
>>7927586
very argumentative discussion
If I wore a full body swimsuit and soaked myself in an ultra repellant like ultra every dry, what would happen if I tried to swim?
nothing, youd be dry
>>7927500
Replace water with pentane and what your thinking may work.
>>7927506
What am I thinking?
>inb4 butthurt mathfags and physicists spam their "chemistry isn't science" dogma
I'll start with a brainlet question:
Everybody on this board is likely familiar with the meme that is aldehydes being able to be reduced to primary alcohols. What reducing agent besides [math]NaBH_4[/math] and [math]LiAlH_4[/math] would be pretty good at reducing aldehydes (and possibly ketones)?
(fuck it, inorganic and analytical chemistry questions are welcome, too.)
muh arrow pushing is science
>>7927218
The same can be applied to physics.
>muh plugging n' chugging is science
>>7927232
except it isn't plugging n' chugging, chem brainlet
1kW Laser Rust Cleaner
Watch it in action
https://www.youtube.com/watch?v=vTDPI4xTetI
<Neat>
>>7927102
</neat>
Don't forget your endtags
>>7927100
Cool. All the other ones I've seen where way more powerless and time consuming to the point of impracticality.
Compound interest question. It takes the same time to turn $1 into $100 as it does to turn $1,000 into $100,000. Is there a function where it would be faster to turn $1,000 into $100,000 than $1 into $100? What would it and its derivative look like?
>>7926913
yes
multiply the number by itself every day.
>>7926925
in other words, x^2
>>7926925
>owe the bank a thousand dollars
>have a million the next day
realistically speaking, what's the benefit of bringing a man to mars?
>>7926771
Faster research potential, inspirational moment, paving the way for future colonies. Realistically, it's not that big a deal which is why a colony for example is not happening anytime soon. We still have earth to fix and wholly inhabit before we move on to Mars.
>>7926771
Beating other countries there first.
>>7926774
>Realistically, it's not that big a deal which is why a colony for example is not happening anytime soon. We still have earth to fix and wholly inhabit before we move on to Mars.
That's why, personally, I think its a waste of money. We should just wait until technology advances so that a mars colony becomes possible
Why are /sci/ geniuses generally very old school?
>listen to classical, barbershop, jazz and pink floyd
>into old school films before the 70s
>still buy physical books rather than use e-reader
>still have yet to make the transition to touchscreen phones and tablets
>have this obsessive fascination with pre-90s games and 8-bit
>own ancient game consoles
>collect retro cards stamps
>use a non-updated version of linux
>use latex instead of word
>use latex for drawing diagrams than on photoshop
>use latex for literally fucking everything
>>7926766
Because that's the stereotypical characteristics of geniuses. /Sci/ autists want to project that image.
its because they are insecure about their intelligence, and so surround themselves with the traditionall trappings of intelligence to boost their image.
Actual geniuses dont care about that shit, they just do what they want.
>>7926766
Who are you even talking about? None of that describes me, except for the genius part.
I listen exclusively to anime music
I don't watch films, specially not mainstream american ones because when you have read and watched anime like Berserk, any other piece of media cannot even compare.
I download PDFs and read them on my laptop, phone or iPad.
I did, as previously mentioned.
I don't play videogames that are not competitive and even then I don't even attempt to get...
Comment too long. Click here to view the full text.
why does everyone hate DeGrasse?
>>7925918
>why does everyone hate DeGrasse?
Because he's a stoner, and the rest of /sci/ had to quit smoking weed to make it through college.
>>7925925
>and the rest of /sci/ had to quit smoking weed to make it through college.
speak for yourself
Because he's a meme scientist. He's a stamp collector who has memorized a bunch of facts and he regurgitates them in a bite-sized form for the general public to consume. He hasn't contributed anything to the field of astrophysics in the way of research or discovery. He was dishonest in his correspondence with Carl Sagan and has been Brian Williams-esque in over-representing their relationship. To his credit, he's well-spoken and passionate about all things related to space. That counts for something.
Who will get to Mars first?
>NASA?
>SpaceX?
>ULA?
>Russians
Vote here http://strawpoll.me/7056572
Interesting that the Russians are winning. Anyone want to give a reason as to why?
>>7925599
Autocracies are pretty efficient, because the populations' wealth is redirected toward goals without long discussion processes like those of parliaments and voting.
>>7925618
but they're broke
What's your favorite area of math?
Mine is graph theory.
>>7925329
Same. What's your favourite area of graph theory?
>>7925541
Math
>>7925541
The nodes
