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Archived threads in /sci/ - Science & Math - 1897. page

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How much more Delta-V does it cost to send a woman into space compared to a man, considering the weight of feminine hygiene products?
32 posts and 4 images submitted.
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Balanced out because they're smaller. You fucking fag.
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>>7842183
I actually imagine they'd temporarily shut down her reproductive system else she'd be hindered in training when she's having to experience cramps, illness etc every 12 months. There are drugs like that that can last 3 yrs at a time.
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>>7842199
Meant to say 12 times a year, not 12 months

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Hello /sci/ i have been just wondering about our life and what happens when we die.
of course the most basic answer is that we decompose and are lifeless shells.

but what becomes of the consciousness of an human being, does it disappear and turn into energy?

this puzzles me greatly and i think i cant find the answer to it even if i thought 1 thousand years.

>pic not related
11 posts and 1 images submitted.
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>>7842103
>this puzzles me greatly and i think i cant find the answer to it even if i thought 1 thousand years.
>i think i cant find the answer to it even if i thought 1 thousand years.
>1 thousand years.
>this puzzles me greatly
>does it disappear and turn into energy?
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>>7842106
that is just a weak answer
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>>7842103
Consciousness is the result of brain activity. It goes when your brain goes.

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I made a thread a while ago asking why if /sci/'s IQ is so high and you all attend top schools why has no-one here developed anything new and in addition to getting the usual "smart but lazy" bullshit but also many claimed that it's impossible for anyone without a PhD and huge research group to create anything new so why is it that many of the technological advancements of the 20th century were conceived of by amateurs? The airplane was invented by two bicycle mechanics, The stealth bomber was invented by the Horton brothers who were flying club members who never spent a day in university. The wankel engine, Felix Wankel never had a degree. Fast forward to the end of the 20th century the electronics age was virtually run by degree-less amateurs, Jobs and Gates etc. So why /sci/, why are untrained plebs pissing on all of your achievements? It is because you are not really smart, you're just good at passing exams.
>tech is too advanced nowadays
That's a "everything has already been invented" cop-out there is always new fields popping up. The 70s was pretty advanced what with trips to the Moon and fusion research going on yet Wozniak still managed to innovate. You can call yourself smart not when you have gotten into some college course or worse scored high in some online IQ test but when you have either published a research paper or hold a marketable patent.
11 posts and 2 images submitted.
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>>7842100

Why haven't you?
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>>7842100
All of the last 20th century innovators are computer people. That shit was new then. Now it's not.
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>>7842113
There are new things going on now. Drones, cheap VR etc. Wasn't that Australian kid who was in the news recently for inventing a new more efficient ion rocket just an undergraduate?

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Could a magnetic monopole be created during a supernova?

My calculations (though shitty estimates) show more than enough energy would be released.
11 posts and 1 images submitted.
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they don't exist
string theory is a meme
gladiator sucked
engineering is basically just like accounting
cleganebowl will never happen
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>>7842073
This meme is related to gladiator?
>>
>>7842059
bump

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Is this /sci/ approved?
14 posts and 3 images submitted.
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>>7842002
/sci is racist so no
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>>7842002
It's good for normal people who are curious about basic scientific concepts and interesting anecdotes. It's not very suited to the flat earthers and moon landing deniers who infest this board, though.
>>
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I thought it was great

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On November 2nd, 2019, a letter arrived at the office of the president of the united states.
It read, "On November 4th, 2019, the Washington monument will disappear. In two years, the entirety of the Hawaiian islands will vanish in a similar fashion."
After a brief panic about a terror attack on the monument, security swept the area, found nothing, heightened surveillance, and sent a few more guards out to make sure no one was doing anything suspicious near it.
On the 4th, the security teams observed the monument throughout the day, and closed it to tourists.
At 2:32 PM, it vanished instantly.
The rush of air to fill the vacuum left by it ripped a couple of the surrounding american flags off their poles, and for anyone within 20 meters, their ears had a good pop as they were pulled slightly towards it by a gust of negative pressure. Two guards were inside the building, performing a tertiary sweep for explosives. They vanished along with it.
The US government now had a two year countdown until Hawaii disappeared.

Alright, /sci/, this is where y'all come in.
What would be the scientific ramifications of this happening, what steps would be taken, who would be involved, what would the end result be?

I don't see enough fun threads on /sci/
18 posts and 2 images submitted.
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You guys are no fun
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Y'know this could be an interesting thread if you guys just spent like 30 seconds to read it
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>>7841955
Sorry anon
At least you got dubs

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So I wonder if there is scientific evidence that excessive masturbation and porn use is negative?

After hearing a lot of stories on nofap I got curious and tried it. Have been nofap/noporn for the past 3 weeks and honestly it feels amazing and will continue with it. But I also believe if it may possibly be placebo.

One of the few studies I've found show that on the 7th day of nofap testosterone in men is increased to 150% and then levels out after that:

http://www.ncbi.nlm.nih.gov/pubmed/12659241

There was another study that says it takes 3 days after masturbating for your testosterone level to go back up to it's normal levels. So if you masturbate every 2 days, your testosterone will be lower than normal.

Anyone have opinions / thoughts / studies / experiences on this subject?
26 posts and 2 images submitted.
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>>7841933
>compulsive

There's the queue. What do the brains of other compulsive ____ look like?
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>>7841933
Yea man porn reduces grey matter look at this flipping cool article on it

Science rocxs

http://www.iflscience.com/brain/researchers-find-association-between-porn-viewing-and-less-grey-matter-brain
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>>7841943
fuk yah syense!! :D

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go/weiqi/baduk vs chess

which one?
23 posts and 2 images submitted.
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>>7841922
Chess because it sounds the least african out of all choices.
>>
I'll vote for go
>>
go is a 3000 year old game originating in China

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Hey /sci/, I almost asked this in /g/ but thought I would be better off here.

What calculator is overal a good one to own? I need a new one. is the ti 84 overrated or is there a better one for the money? or is it a thing to just accept and not be too autistic about?
26 posts and 5 images submitted.
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>>7841898
Ti-84 is a meme. Just grab any scientific calculator and you're set.
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>>7841900
So what is a /sci/ approved calculator?
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>>7841900

Yes and no. Casios are generally inferior to the TI 8X series, and my scientific basis for that statement is that any time I play with a Casio, I just plain don't like the layout relative to the previously mentioned calculators.

I've played with 83s, 86s and 89s. They're fun for games and HS-tier stuff, and can even be used for arithmetic. Talking about the various functions of TI calculators is a total anachronism these days though, what with the much more powerful computers/calculators everyone carries around in their pockets.

If you really want a stand-alone calculator, I would recommend one of the above (since you're going to drop a chunk of change anyway), depending on what you want. I seem to remember playing with an 84 maybe once or twice and not liking it, like it was unnecessary increment in functions between the 83 and 86. Either way if you do math above linear algebra your calculator will be of no help, and for the stuff below, you will probably have to sit at least one test at some point without a calculator - they have to check whether you've internalized the ideas, after all.

All I used calculators for now is arithmetic and some double-checks with series manipulation. Even just opening up an Excel sheet is usually faster and easier to read.

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If exoplanets discovered by scientists are what they were thousands of (light) years ago what if life developed on them thousands of years later in our present time? Theres no way to confirm the existence of alien life because you're always looking back thousands of years into the past with the telescopes!
21 posts and 2 images submitted.
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checkmate atheists
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>>7841895
>life developed
>thousands of years

More like millions/billions
The most distant individual star visible to the unaided eye is a little over 4000 light years away
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>>7841895
Well, actually observing the ariens isn't the only way of confirming their existence, we could also pick up on waves, if any ever come our way, which is super unlikely.

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Can somebody explain tesseracts to me?
17 posts and 2 images submitted.
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Can you visualize a cube? That's the shadow of a tesseract.
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>>7841951
thread over.
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>>7841951
>>7841984
But that's not even true.
The shadow of a cube is not even a square under most view angles.

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>CS majors: "muh jobs"
>reality: "highest rate of unemployment"

https://www.studyinternational.com/news/uk-computer-science-has-the-highest-rate-of-unemployed-graduates

neckbeards on suicide watch
343 posts and 46 images submitted.
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>>7841871
Degrees don't matter anymore. Find a sector of personal interest, then write a useful lib and provide support. This is the only CV that matters in CS.
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>>7841871
Most CS majors can't actually code for shit beyond their lecture notes.
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Why is the UK so shit?

STE in STEM has unemployment of at least 8% across the board. And those salaries seem really crappy considering the £40k+ student debts.

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Is the heat death of the universe theoretically survivable?

I'm arguing with my jackass brother, he says that as long as an inhabited planet produces enough heat and energy, that it can sustain itself through the nearly absolute-zero temperature of the rest of the universe.
33 posts and 4 images submitted.
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Fucking what
Your brother is retarded.
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.....and where would this energy come from, that wouldn't eventually run out?
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>>7841783
Carbon nanotubes, according to my brother.

>>7841781
I made another thread about him some time ago, he wanted to argue with you guys and when the thread 404'd the thought he won

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Wildberger thread
10 posts and 3 images submitted.
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He is right.
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>>7841715
You just missed the smartest guy alive thread. He would have been the king
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>>7843142
No one thinks he's the smartest guy alive. He's just a mathematician who disagrees with the current dogma about the foundations of mathematics, and he has plenty of great mathematicians on his side.

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Alright guys, help me out.
Big bang was caused by matter and antimatter moving to each other slowly creating a dense world structure that created a huge release of energy.
I can be wrong I'm not a scientist. Correct me if I'm wrong. The question relates to what happened before big bang.
Now my question is, how was the matter created in the first place? Where did it come from?
18 posts and 4 images submitted.
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>>7841685
It came from the past universe.

Our universe is just repeating itself infinitely. Expand, collapse, expand, collapse.
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>>7841693
Can you please give me a source?
Please
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>>7841701
Can you please give me a source?

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