It's gonna be a litte outdated question but why when CERN stated there's a 1 in 50 million chance that they might create a black hole, it might bring the end of the universe?
Do black holes keep growing until they consume everything and never die down ?
What? It is possible to create a black hole, but I don't think that it will suck the world in. I'm laughing hard right now xD
>>8500763
theoretical physics not even once
black holes evaporate due to hawking radiation
one the mass of our earth or larger lives practically forver and increases in size (as long it has enough interstellar gas to suck in)
one that weights 1000 tons will evaporate in under two minutes, expelling such mass in such a short time obviosly will produce a huge outwards flow of energy which will prevent any matter getting sucked in to feed the black hole (also its size would be only 10^-12 nanometers)
now they only collide atoms in the LHC, not trucks, so the mass of the black hole would be much smaller, but even at 1 microgramm its radius would be theoretically smaller than a planck length and the lifetime less than the planck time.
So while theoretically it could create mini black holes, there is no way of registering it, even if you collided bricks instead of atoms
Two questions.
1. As coffee in a cup cools down, will there be random spikes where the heat goes slightly up, even a tiny tiny tiny bit while the general trend is that it cools down.
2. If you had a tap of running water from a height, going down onto a heated stove or something, could the stove transfer heat up the running water so that if you put your finger through water near the top, you would feel it heat up (without evaporating it and without the heat transfering through the air or something)
>>8500698
I'm gonna go ahead and say no and no. Gl with your hw
>>8500698
First Question: No
Second Question: Dunno, why don't you go pour water on your stove
>>8500698
assuming you're measuring with a thermometer probe, then yes the temp will vary. you are measuring a single point in a moving fluid, hot and cold spots create currents as it falls to a stable temperature.
no, conductive heat transfer propagates on the order of millimeters per second, even in metals. the falling water would be moving much faster than the heat could conduct to the top.
How does this image make you feel?
Like a kid again.
>>8500504
Pain. Because people actually believe it happened.
suspicious. if it's really possible to reach the moon, why aren't we doing it right now?
is this test legit?
http://www.iqtest.dk/main.swf
if my result is 135 does this mean I'm at least not retarded?
even retards are more intelligent than you, look up the savant syndrom. people with this condition have an iq below 70, yet they perform tasks you can only dream of. iq tests tell you how good you are at iq tests, nothing more. it's a meme. online tests are even more worthless.
>>8500480
Want some more IQ tests ?
try these:
http://test.mensa.no/
http://home.earthlink.net/~jimmyjones/aptitude.html
http://www.cerebrals.org/jcti/index.html
>>8500554
>http://test.mensa.no/
op here
I got 131 in this one with 10 minutes time left. I basically just gave up on the last few questions, they were too difficult for me.
those are the ones that separate the real intelligent people from me
Does psychology belong on /x/?
psychology: yes
psychiatry: no
>>8500478
same thing
>Python is becoming the de facto standard for many scientific libraries
>I might end up having to learn Python
>I don't want to
Help me /g/.
>>8500349
Kill yourself code monkey
>>8500361
>implementing scientific algorithms
>""code monkey""
kys you stupid freshman
>>8500364
not even him
>>implementing scientific algorithms
>>implementing
>>not a code monkey
also I'm a grad student
>Still haven't memorized the times tables
>Still count with my fingers
I refused to memorize the times tables in elementary school because I realized it was just iterative addition and that I could always use a calculator.
I also refused to learn cursive as well.
Damn it feels good not to be a brainlet.
>>8500284
post more chen, chenposter
>>8500289
>Damn it feels good to voluntarily be a brainlet.
ftfy
Has anyone looked into this yet? It's spreading like wildfire and I am starting to believe there is some legitimacy to it all. Is this the true, actual brainhack we've been looking for?
https://www.youtube.com/watch?v=SXDw73rToPE&t=402s
i watched the video. it seems like they are targeting the average youtube audience but aside from that its interesting
>>8500091
The only rational scenario I can think of for God existing in our universe is if we're living in a simulation, and he's the superuser in charge. All the Abrahamic religions are obviously bullshit.
who knows the carl sagan quote?
"A religion old or new, that stressed the magnificence of the universe as revealed by modern science, might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths. Sooner or later, such a religion will emerge." ???
THIS IS IT GUYS, PREPARE FOR SINGULARITY
>tfw to intelligent too fall for the "dark matter" meme
it's a prime example of "our core theory is flawed so we make shit up to uphold it"
to obvious too 1/10
>>8500080
Yep it's obvious bait but if by core theory you mean our current understanding of what constitutes a galaxy then you're surprisingly right, dark matter is exactly that: a filler name for something we don't know and doesn't fit with the model.
>>8500080
You're saying you're so intelligent that you have come up with a better theory of gravity than GR. Let's hear it then.
wtf is matrix multiplication and addition??? like I get the rules, but I dont understand it in an abstract sense or geometrically. can someone help me grasp it? Its bugging me a lot
>>8499724
>>8499724
Are there good online resources for learning matricies? I assume having a deeper understanding of them would help with NN writing.
>>8499724
A matrix is a transformation. It "distorts" a space in a way that can be visualized as the stretching and rotation of vectors within that space. Matrix multiplication allows you to represent the successive application of two such transformations in a single object.
Matrix addition is harder to appreciate visually. If you understand vector addition visually and appreciate a Matrix as a collection of column vectors which describe how the Matrix transforms unit normal vectors you're off to a good start.
Is everything just algebra?
everything thing in life can be solved with proportions
>>8499649
Nah, some things are arithmetic
>>8499654
>I'm a rationalist
Is there any truth to the idea that black civilizations are always shit because of "muh climate"?
What is the most "ideal" climate for civilization?
Stable food supply is the most important one. By that measure though Asian countries are the best because an acre of rice has more calories for feeding than any other grain. Makes sense if you consider population to be a meter of civil progression.
>>8499576
Poor climate would be best for evolution. It requires more planning to survive winters compared to more mild climates. That planning translates to other areas of civilization building.
>>8499592
Are there winters in Africa?
Can anybody try to derive a lagrangian from a system shown in pic related? I'm not sure I've got it right and could use some backup. y(x) is some arbitraty trajectory.
>>8499396
the generalized coordinates are [math] \varphi , x [\math]
>>8499400
[math] \varphi , x [/math]
>>8499396
help me, physics-kun. you're my only hope.
Sup /Sci/
I've been browsing 4Chan for a couple of years. I generally seem to hover around /b/ and /pol/ but occasionally check out /biz/ and /sci/. This is the board that I often look at and just think 'what the actual fuck'. I have no idea what you guys are on about half the time. It got me thinking that some of you guys are just on a complete other level.
I thought I could give you a chance at asking someone who is just your average Joe (probably worse) what there opinion is on different subjects. They may be as deep or as shallow as you like. I'll obviously answer to the best of my capabilities and stay truthful (anonymity and all that). I will expect to be ripped to shreds for my comments and most likely the OP as I have most likely already committed a number of grammatical errors.
I'll be around for a while if this thread sparks any interests, thanks
tldr; Ask your average joe any questions you like.
I hope you get responses OP
other than mine
>>8499226
I don't get it. Why would we ask a layman for an opinion?
>>8499316
Do you not wonder what it is like to see through the mind of someone who may be more simple than you. It's not my opinion on giving advice. Just my general concept on the world.
Obviously there is little interest so I don't mind letting this thread fizzle out :)
https://en.wikipedia.org/wiki/Felix_Moncla
>UFO caught on military radar
>Jet scrambled to intercept it
>Both jet and UFO are watched on radar
>They just merge into one object and keep moving
>Jet never found again
So what clearly happened is that the USAF tried to intercept a flying saucer, the Greys captured their jet in a tractor beam or something and took it back with them to Zeta Reticuli for study. There is no other explanation. If the jet had flown under or over the object then the radar blips would have split again eventually, if it crashed into the object then where is the wreckage? In another galaxy that's where.
>>8498849
>>8498849
Oh clearly that happened OP, no other explanation is possible, anyone trying to advance an alternate explanation is clearly just an undercover government shill trying to discredit our pursuit of knowledge and/or an idiot """"""""""scientist"""""""""" who just can't stand for their paradigm being shifted by laymen like ourselves.
Keep fighting brother.
>Later, after aviation writer Donald E. Keyhoe broke the story in his best-selling The Flying Saucer Conspiracy (1955), the Air Force insisted that the "UFO" had proved on investigation to be a Royal Canadian Air Force C-47. The F-89C had not actually collided with the Canadian transport plane, but something unspecified had happened, and the interceptor crashed. Aside from implying woeful incompetence on the radar operators' part, this "explanation" -- still the official one -- flies in the face of the Canadian government's repeated denials that any such incident involving one of its aircraft ever took place.
>>8498889
>the Canadian government's repeated denials that any such incident involving one of its aircraft ever took place.
But of course they'd say that.