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Archived threads in /sci/ - Science & Math - 67. page
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Only allowed to post one guys
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>>8137036
Lets see what books affected your careers sci
>>
>>8137036
Book?
Name of the Wind
/sci/ book?
prob Freakonomics
text book?
Spivak's Mechanics for Mathemagicians
>>
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What do you think, is the fabric of the Universe continuous or discrete?
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>>8148311
Either.
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is
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>>8148311
discrete

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Could science solve our gun violence problems?

For example could we install high very high powered magnets in buildings that are activated only at the exact vibrational pulse of a gunshot, and thus the bullets and the guns themselves are stopped and pulled to the wall stopping the gun.
102 replies and 6 images submitted. Click here to view.
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>>8146013
>For example could we install high very high powered magnets in buildings that are activated only at the exact vibrational pulse of a gunshot, and thus the bullets and the guns themselves are stopped and pulled to the wall stopping the gun.
No, that's retarded. Thread over.
>>
>>8146013
switzerland has tons of guns per capita, and no shootings.
america is just a poor country with people living miserably. a warzone really.
>>
America has a culture problem, not a gun one.

With magnets strong enough to stop bullets: hope you enjoy ripping everyone in half who's wearing a belt or watch. Or sitting on a steel chair. etc.

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THEY'RE DOING IT LIVE
Launch webcast begins at 9:45 Eastern, with launch at 10:15
https://www.blueorigin.com/
13 replies and 3 images submitted. Click here to view.
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I bet they prepared an amazing CGI to show off their round earth lies again.
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well this is gonna be a disaster
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So many jabs at SpaceX with a tiny rocket.

IF this isn't overcompensating I don't know what is

so, i have been blazing a lot and thinking even more.

now i summon all the actual educated people on here, to clarify this for me once and for all.

Imagine a huge solid metal cube, wich would have enough space in itself to hold a nuclear bomb charge. it would also be thick enough, and strong enough to keep the blast of the said charge contained in itself when it goes off. if you but a cube of sugar, or something small/irrelevant in there, would it create a black hole?
15 replies and 3 images submitted. Click here to view.
>>
No. No it would not.
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>>8151075
y?
>>
>>8151077

If I smack your girlfriend's ass would it create a black hole?

No.

Why? Because why the hell would it?

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Is this book considered pop-sci?
what really is pop sci
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>>
The actual meaning is popular science, which means it's science that is dumbed down to a level that everyone can understand and relate to. Which means it dumbs down or simply ignores the really brainy stuff that requires one to understand the details, numbers, formulas, hypothesis and so on..

I wouldn't call that pop-sci since I doubt majority of pop-sci fags would dare to hold that book.
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>>8150895
>what really is pop sci
Any attempt to dumb science down to the level a popular audience could understand.
>>
>>8150916
wtf is a popular audience you steaming cuck

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Will we ever cure cancer?
18 replies and 4 images submitted. Click here to view.
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>implying all cancer is the same

Even if a cure to a specific cancer is found, it would cost too much for most people to afford or not be commercialized at all
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>>8150844
Yes with ultra-accurate targeted radiation.
>>
will we ever learn how to spread cancer more efficiently?

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Why does decreased temperature increase atomic synchronization in an object?
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>>8150620
Because that's the definition of temperature.
>>
Less brownian motion
>>
I now absolutely nothing about physics but I'll give it a shot. Please tell me how stupid and wrong I am.

Stored energy is an measurement of potential, as in how many different things it can randomly do in the next second. As you take energy away from an atom it has less potential or less "things it can do." Eventually if you remove enough energy from an object the atoms are so limited in what options can perform that some of them start randomly doing the same thing and sync up.

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Does anyone know a nice space that this is homeomorphic to? Its just R^2 take away the lines x=0,y=0 and x=y, with the subspace topology of the standard topology.
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6 disjoint copies of R^2 tb.h
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>>8150641
The surface of a cube minus the edges, yes. This is the same as >>8150581

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So if the most likely reason that black people have dark skin, less sensitive eyes( dark brown) and often wider nostrils is because of adaptation the heat in the areas they lived( wider nostrils means more air can enter) and people with white skin son't for the opposite reason. Why is it East and south east Asians who live in their respective climates and geographic areas have evolved, on top of different skin pigmentation, slanted/almond eyes? What purposes could that feature serve to adaption. I always wondered this.
Literally not trying to create a race war or /pol/...
Comment too long. Click here to view the full text.
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>>8150454
they fucked things that had slanted eyes.
just like white people share a common ancestor with the rhesus monkey.
>>
>>8150467
Well yes so, there is no advantage to having such eyes in any environment then? Their common ancestors just happened to mate with other primates that looked like that(for some reason)? Also, why do most East Asian have dark eyes when they're ancestors lived in cold climates mostly(reflecting their lighter pigmentation). Could this be the fact they they share common ancestors with Persians and other Middle Eastern peoples?
>>
>>8150454
>>8150507
Smaller "slanted" eyes mean you are less sensitive to sunlight glaring off fresh snow. Look at inuits, they have extremely small eyes reflecting this type of environmental adaptation.

The east Asian race as we know it would be descended from peoples who lived further north near Siberia before migrating southward.

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I have really hard time now having the will to do absolutely anything but dont want to be like that and also is there a way to make yourself love what you do even if you dont ?I'm sure I can condition myself but have no idea how.
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>>8150367
>implying free will exists
Don't fall for this meme.
>>
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>>8150367
>>
>>8150673
how do you reply to me then completely aware of what you do?
>>8150792
dont want to fuck my shit up even more.want to do it naturally.

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The age of customized synthetic porn is upon us

http://arxiv.org/pdf/1606.05328v1.pdf
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Might want to take a look at this. I'm not telling you how to live your life, but be aware of the consequences my friend.
>>
>>8150212
classic memeposter
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>>8150202
Stuff like this and the bedroom thing strike me as just being heavily overfitted. Have they really gone through every image the system was trained on to make sure it's not just spewing out things it has seen?

I'm not convinced.

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How do you revise all math quickly?

Khan has a million videos and even played at 2x speed, it still takes weeks of continual effort.

What other resources do people use? Something that covers everything up to calculus/linear algebra/probability
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khan academy is the golden standard, bro.

PatrickJMT is another option but he is 100x more unorganized than Khan and his videos are oftentimes just as long or longer.

Don't get fuckarounditis looking for an alternative to Khan Academy, I did that a few years ago. Just sit down and start working with 2x speed on.
>>
What the fuck even is Khan Academy?
>>
>>8150152
Lurk more so thou shalt know the truth and the light of our Lord who art in Heaven, the Wilderbeast, guide thyself to salvation.

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Why everyone on this board get so mad when he hear about evolutionary psychology? Humans evolved, body and mind, from earlier primates. The ways in which humans think reflect this heritage as surely as the ways in which their limbs are articulated, their immune systems attack viruses and the cones in their eyes process coloured light.
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It makes traditional psychologists angry that biology is "invading their field", and they fear that biology, chemistry and physics is reducing their precious theories into cinders.

In my country the research group that studies evolutionary psychology has been terrorized by extreme leftists and creationists. They wreck the researchers' cars, threaten their families with violence, leave "warnings" etc. It doesn't fit their world view that our behavior is partly determined by our past, and that we are greedy, selfish and manipulative by our nature.
>>
>>8150021
People fall into the trap of making up Just-so stories to explain any psychological phenomenon they want. Its not something that people who haven't rigorously studied evo. pysch. should try.
>>
>>8150055
Sounds like the US of A.

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What if we define 1 to be 0?
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Do you mean that 1 becomes 0 or that 0 becomes one ?
>>
Then for every number a, a=a*1=a*0=0.

In other words, all numbers are the same, which is a pretty boring system to work in.
>>
>>8149902
Ok. Why don't we make a new value for division by 0, like i was invented for sqrt(-1)?

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