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Archived threads in /sci/ - Science & Math - 552. page

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What is the best way to learn biology and chemistry?
13 posts and 2 images submitted.
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>>8894043

Learn Physics -> Learn Chemistry -> Learn Biology
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>>8894050
with what resources, khan academy + what textbook would you recommend?
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>>8894043
Find a geniune intra-personal passion for the natural sciences, then, enrol in courses pertaining to these subjects at the tertiary level.

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>Be me
>Lazy and depressed for years (Main reason for depression is procrastination)
>One day decide to smoke weed
>Have a panic attack, seriously bad
>Develop an anxiety disorder where most of the time I feel like neither me or th world is real
>So much mental anguish, I can only be in peace when my mind is fully distracted
>I begin to work on my projects because otherwise I know no peace
>My productivity increases substantially
>Continue like this for 6 months

>Suddenly my anxiety disorder is gone


>Go back to being lazy and depressed because of procrastination
What's the Science behind this? Should I smoke weed again and hope for another anxiety attack?
29 posts and 1 images submitted.
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>>8893754
"Work will set you free"
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>>8893754
I have the same problem OP, derealization and depersonalization, because of weed, spice (synthetic cannabis) and street meth I got from a dude that literally crawled out of a manhole (he was a hobo cooking meth in the sewers)
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>>8893754
it's so surreal, nothing is real, I'm in a movie, I can do anything and it doesn't matter, I can concentrate so hard on some subjects that one time I almost got run over by a car because I was thinking about some random mathematical shit in the middle of an intersection

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How long before a manned mission to Mars *really*? Everyone in my family says it's "literally gonna happen next year", but I know how popsci and the media loves to glorify and exaggerate shit.
15 posts and 3 images submitted.
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Whoops wong pic.
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>>8893722
stop being so fucking impatient. it will happen.
maybe 2024, maybe 2030s, maybe 2080s.
infact, the further off it is, the better our tech will be when it happens, which will make colonists lives much easier.
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>>8893722
It might happen pretty quickly, but it's not going to be next year.

Earliest reasonable possibility would be the next window, in 2020, if people went balls-out and accepted that it's going to be very risky.

2026 seems quite likely, if things proceed according to current plans but with some delay (SpaceX has the clearest plan for a manned Mars landing in 2024 with ITS after a 2022 unmanned test, but already they've slipped a window in their Red Dragon program), and getting it done by 2029 seems very likely.

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Apparently, taking sub-perceptual doses of LSD (10-20 micrograms) improves cognition, reflexes, concentration etc. and it's the newest craze among silicon valley magnates, wall street traders, students and others. Basically using it as an incredibly powerful nootropic.

What do you guys think? Bullshit or no? I'm not sure what I believe, but then again I'm not an expert on this topic.
17 posts and 2 images submitted.
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>>8893153
it's legit from tons of anecdotal evidence xD !

why not just try it
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It's not some breakthrough craze like the buzzfeed articles you read would lead you to believe. Mostly it's people who tried it for a week, said 'wow yeah it really boosted my creativity and cured my depression', and then never tried it again.

Every solid self-study with strict dosing and consistent documentation shows some benefits in the first days / week, then it tends to level off and with an increase in negative side effects leading to the person terminating the experiment.

There are also some concerning studies that show frequent dosing of psychedelics, whether standard doses or microdoses, are incredibly bad for the heart.
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>>8893189

Also anecdotally i tried 15ug 1day on / 2 off for about 2 weeks. Slight increase in energy for the drugs duration followed by an increase in lethargy, No noticeable change in creativity, no noticeable effect on depression. Stopped due to lack of benefits, feeling slightly 'off' all day, and an increase in heart palpitations.

If something has an increases by times two is it a 100% or 200%
15 posts and 5 images submitted.
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>>8892880
Are you just reasking your retarded temperature question?
>>
It increases in size by 100%. The object is now 200% of its original size.

Questions like these should go in the stupid questions thread.
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>>8892889
I was about to ask the same

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How does Heat Death work?

So universe continues expanding bla bla bla radiation bla bla bla trillions of years yea yeah ok so at the END

Once the black holes radiate away all their...singularity...I don't understand it but here's my question:

At the very end of the universe, during "heat death" are there still cold rocky planets and asteroids just forever floating?

Or does that somehow get ripped apart at the atomic level? If so, how does this occur?
28 posts and 1 images submitted.
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No you retard, death of the universe means -EVERYTHING- is gone.
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I believe heat death is after all the protons decay, so no atoms left.
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>>8892710
>If so, how does this occur?

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Confirmed brainlet?
33 posts and 4 images submitted.
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>>8892079
>ITT: Brainlet who thinks honorary doctorates mean anything
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>>8892079
I've only seen clips but his new show seems fairly devoid of science or is it a product of dumbing down for a wider audience?
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>>8892090
OP here, pretty sure he's just a brainlet

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While I was taking geology at uni we, people from the department, would often go out for drinks at the end of the day. One of my peers brought along her roommate who was hospitality management or nutrition or some other such major. She starts going on and on about the healing properties and the different auras of various natural crystals. She won't shut up about it, she thinks since we are all geo people this will get our dicks harder than corundum.

Everyone is just letting it happen, but I had never met this girl before, so I guess I didn't know the drill. She pulls out this necklace calls it "Blue Sandstone", starts telling us about how it must have formed in some mineral rich location and after eons in the ground it absorbed so much energy that now it radiates it out and keeps her grounded. Isn't it amazing how something natural can be so beautiful, look how it sparkles and shines it reflects from all angles just like someone who is grounded should. I wish more people would embrace the power of natural gemstones....like you all do.

I can't take it, so I just tell her straight up, that it's glass, normal man-made glass. She is probably older than that hunk of garbage silica, in fact I'm pretty sure it is a Venetian method from centuries ago to sell waste glass. It has no crystal habit, it has no natural energy, it does less to keep you grounded than the beer glass in my hand (at least that has beer in it).

She got pretty pissed. I don't get it are we just supposed to let people be wrong?
16 posts and 2 images submitted.
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>>8892049
You are supposed to fuck her THEN explain to her why her entire worldview is bullshit.

Kill two birds with one stone.
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>>8892049
I'm guessing you didn't get laid after that.
>>
>>8892049
Mice copy pasta

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>stays in orbit for over 700 days
>built for payloads that needs to return to earth, otherwise they would be launching the payloads by themselves with normal rockets.

what is the X-37B doing?
18 posts and 4 images submitted.
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This one had a prototype hall thruster and a prototype meme drive on board.
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>>8891769
Who knows,at least they are having fun with cutting edge stuff.
>>
Testing how various pieces of equipment holds up to being in space. It's a lot easier to figure out why something broke if you can get it back in the lab.

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Will we see perpetual motion machines in our lifetimes?
38 posts and 5 images submitted.
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>>8891727

They're called year round waterfalls.

Zero energy input, endless energy output.
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>>8891727
#Thermodynamics

/thread
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>>8891727
>>>/x/

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What do you /sci/entists think would be an innovative approach to deal with stress,ADHD, autism and anxiety?
36 posts and 5 images submitted.
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>>8890879
>stress,ADHD, autism and anxiety
ritalin and weed
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>>8890879
all at once? gas it. one at a time? with the current methods.
>>
>stress,ADHD, autism and anxiety
aka maladies that don't exist.

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Are there any viable methods for producing graphmeme for a decent price and low start-up? I'd like to make some if possible.

Is there anything easier to make that even remotely comes close to it's thermal properties?
14 posts and 1 images submitted.
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>>8890222
Diamonds
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>>8890222
>Are there any viable methods for producing graphmeme for a decent price and low start-up?

Well I heard you can put some pencil graphite on a piece of sticky tape, repeatably stick them together and pull apart all the layers. Watch this vid

https://youtu.be/PifL8bAybyc?t=89
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>>8891764

>tfw this got a nobel prize

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How long do you think it will be till we finally have proper gene splicing?

I was thinking about it and here are my pros and cons, let's say that a human could splice with say a Golden Retriever:
pros -
nice coat for when it's cold
higher senses as in smell, feel, touch, hearing and so on
not as many showers

Cons -
having a to keep yourself at a nice even level, like when it's 95f outside.
All your senses would grow annoying (but you'd likely get used to it)
if you got wet without the proper shampoo, your fur would smell terrible


Then there's the idea of new occupations, especially for doctors cause you'd now have to go to a special doctor that treats 1/2 human 1/2 animal

Politics would come into play cause I could see if any of the millennials getting up in arms about sharing a damn bathroom with an anthro-human, or even saying they are "an abomination to the human kind! This is not what God wanted!" and so on

Then reproducing.

How would that work? Could a spliced human who was either born with it or spliced in general be able to reproduce with the 2 creatures, either the animal or a human?

What do you guys think?
13 posts and 2 images submitted.
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>>8890076
The idea is flawed. Not all traits are mendelian, in fact only a few are. Also eukaryotic genomes are highly complex. Look instead to microbial engineering and symbiosis
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>>8890192
I mean, it's likely possible, but it's gonna be a long ass time. I wanna say no more than 50 years till we have our first real spliced person that's fully functional. I just hope I'm around to see it.
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>>8890076

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>kibibyte
>mebibyte
>gibibyte
How did you react when you realized people are taking these seriously?
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Fucking idiots redefined what a kilobyte is through collective stupidity so now we need a new word to mean what kilobyte actually means.
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>>8889886
>been in use since 1998
Who fucking cares, really?
All the people who don't know a kilobyte is 1024 bytes aren't involved with computers anyway
Do you get autistic when non-botanists call tomatoes vegetables too?
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>>8889886
I remember when a PC hardrive was only 700 MB, and a floppy disk only had 3.44 MB... fuck I'm old.

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What are your thoughts on civil engineering?
36 posts and 1 images submitted.
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Will be replaced by automation. I'd rather go into finance than become a Civil Engineer.
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>>8889797
How can it be automated? Aren't nearly all finance jobs besides CEO or economist more easy to automate?
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>>8889815
Structural jobs for municipalitits are as easy as finding certain values that differ from house to house (reflected rafter length) and seeing if it can withstand the amount of loading deemed fit by the municipality.

The job could be done by a field engineer armed with nothing but a municipal code book, a tape measure and Microsoft Excel.

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