Hi /sci/ I hope this is the right board but I didn't want to post on /x/.
I was in my yard watching for the meteor shower (only saw two) and I noticed a light flash to my northwest. I thought it might be an airplane and I was bored of looking for meteors so I was going to watch the airplane. It wasn't an airplane though, I'll try to describe it. It flashed once about every 30 seconds. It wasn't a really quick blink but it had a fast buildup and fade, took less than two seconds to build up from being invisible to full light intensity then fading back to being invisible. It seemed to be regular at around once every 30 seconds. There were no other blinking lights like an aircraft, it was just nothing, flash of light, nothing for 30 seconds, flash of light, repeat. At first I thought it was stationary but it was moving, very slowly. So i sat there and tracked this thing for probably 20 minutes. Same pattern the whole time, it would flash, move just a little, flash, and move a little. It moved across the sky though by probably 45 degrees. As it seemingly got closer to me there were a few quick flashes with no fade over a period of a couple minutes then it just stopped. I could tell it was at an extremely high altitude, probably in space. When it flashed it's brightness was like a bright star. The color was whitish yellow. It wasn't a normal satellite in orbit, I've seen those and they move much more quickly. What could it be?
>>9102573
A tumbler. Space junk that is slowly tumbling and/or spinning, catching and flashing sunlight down to you.
But... 20 minutes is a hugely long time. Are you sure about that?
>>9102577
It was at least 20 minutes. My dad came out to see if I was seeing meteors and I said no but pointed out this thing to him. He watched it for maybe 5 minutes and said he'd never seen anything like it, commented it was too slow for a satellite and that it was way the hell up there. He went back in and I watched it several more minutes until it stopped.
>>9102579
Well, I'm at a loss. I would've grabbed my binocs and had a better look. My only other guess would be an airplane coming towards you, so motion is foreshortened.
How far can a mechanical puter be made to go?
Imagine I=V/R. Link with a chain the three variables, now if you turn the R cog one direction, in this case to represent lowering of resistance, the cog that displays current etc.
There are mechanical shits for the up then down predictor equation but what would take my full attention would be a mechanical comp that would do simple calculus, I would love to see how that worked.
>>9100071
You can integrate differential equations with mechanical computers, see Vannever Bush's differential integrator.
you can even build a whole turing complete computer and do damm mear anything. The Zuse Z1 is an example of such things.
Thanks for the pointer.
I would like to see a big warehouse full of these computers.
But i want to understand calculus but am tard. I would really like to see some mathematical machines running.
Or maybe an animation of how all the quantities effect each other in a visual form.
>>9100100
Tard here, what happens when you integrate ff equation?
Is Sam Harris worth a listen? I still have no clue who he is but I see him in the political scene.
He's Salty Atheist #654123458. Of course you see him a lot in the political scene.
>>9099701
Yes, he's really good.
>>9099701
>Is Sam Harris worth a listen?
Why don't you listen to him and find out?
JUST BE OUT OF THE REACH OF THE GOLDILOCKS ZONE SENPAI
JUST
U
S
T
>they found another Venus
nice desu
>goldilocks zone
Mars is a barren desert
>>9099657
would the zone still be the same for that star?
Posted this on /trv/ but the board seems dead so giving a try here
I am currently a US college student planning on going away to a state University soon in Illinois, but the Antarctic has always fascinated me
I plan on studying geology and environmental sciences, but I here in order to actually get to Antarctica you have to be hired to go there. Im wondering first how would one get a job as a field scientist or intern? I personally dont give a shit about snow or cold, I love it I'm from Chicago and was in the boy-scouts. It pains me whenever I see people complain about stuff especially the cold. I personally think it would actually be fun to dive those cold waters in a dry suit, or go out on long expeditions. I think penguins are also pretty cool, not really scared of sea lions or the ocean.
TLDR, How can I get a job in antartica without getting beat out by all the MIT students and scientest crew
>>9102535
bumping?
>>9102535
Ya know when you complain about people who complain it's still complaining. Also, nobody here would have any more knowledge on this than a basic Google search would, where tf do you think u are?
>>9102535
>but I here in order to actually get to Antarctica you have to be hired to go there
Nope, they organize trips through travel agencies in which you can go there as tourists. Only during certain times of the year though, I think.
My grandmother went three and a half months ago.
If you actually want a job though, they literally do internships there that you might be able to snag. One of my friends got a summer internship (new zealand) and go to go there for two weeks of it as part of that.
I just proved that Kurzweil is right with his theory that the brain is just a shitload of pattern recognizers organized in complex layers.
I was driving in my car the other day and actually thought there is a old lady on the sidewalk but when I came closer I realized it is just a dumpster which looks like that from a certain point of view. I realized that my brain detects and identifies objects purely by comparing what I see with things I previously saw somewhere else and that it can fail to do so in spectacular ways. I can't stop thinking about what our brain actually is since I had this experience, we arent special, we are no smarter than today's computer's, we just use the power way more efficiently.
The thing is that I was 100% sure that it was an old lady and it reminded me of the neuronal nets confusing negros with gorialls and things like that.
What do you think /sci/, is Kurzweil the Einstein of our time? Are we going to be cyborgs soon? I hope so.
>>9101165
>we homo sapien sapiens aren't special
>omg nasa found 3 cells on mars that we left there
>i hope we become cyborgs
Atheism. Everytime.
>>9101193
nice contribution to the topic, retard.
>>9101193
>atheism being mocked even on /sci/ now
I want americans to leave.
>I just proved that Kurzweil is right with his theory that the brain is just a shitload of pattern recognizers organized in complex layers.
Yeah you/he is right about that, it happens to me loads of times. I really don't see what it all has to do with le singularity meme tho.
ITT
"""Scientists""" you hate
WE
>>9098109
Why exactly do you hate him?
Because he makes science more popular among normal people, thus making spending government money on science more popular?
why are only white men capable of getting anything done?
>>9087936
because they don't have to worry about Muamba slitting their throat or getting killed by a buffalo or their empty stomach
>>9087936
Why is it that every important scientific discovery over the last 100 years has been made by Jewish people instead of white brainlets?
Why are white people so dumb?
>>9087972
Just look at Feynman's [math]\mathbb{FOREHEAD}[/math]
How can Goyim even compete?
Anyone here start university way behind in math?
The highest math I took in high school was Algebra 1 and Geometry, then I graduated and started working. I started university in my late 20s.
Who has any experience starting at the bottom with remedial classes and starting out way behind?
>>9103542
Bumping because I am in a similar situation, although I am much younger than you. Is there a proper way of going about re-learning math up until geometry?
>>9103542
plenty of people...wont take that long to get caught up just by taking your classes. do lots of practice problems
>>9103542
Don't feel ashamed, once you catch up literally nobody will know or give a shit
are there any proven ways to increase intelligence or IQ backed by real studies?
yeah but you aren't going to like it
actually it's just the idea you wont like. you will absolutely love it once you try it
>>9103407
What's it
Sure, just watch a few educational YouTube Videos:
https://www.youtube.com/watch?v=vBpxhfBlVLU
You'll increase your IQ in no time!
Why is it that cameras and telescopes can look at the sun but if we try it our eyes are damaged?
>>9103271
Powerful telescopes will fry if they point at the sun
Cameras, what's the point
>>9103271
Because they reduce the amount of photons hitting your eye. A telescope only let's light from a small part in and a picture only reflects as much light as whatever light source is hitting it.
>>9103271
Since the telescope is a reverse magnifying glass, you risk melting the sun.
Considering the power of AI, what if some evil genius secretly decided to make something called EvilAI that has the sole purpose of infecting networks and taking over all technology connected to the internet?
Would we all be fucked? Are there even any laws that prohibit him from making such an AI?
We should make NiceAI to fight EvilAI
Motherfucker we'd just invent a different internet or go back to a time before internet.
Seems too specific of a job for a neural network, that guy would have to wait quite a long time for it to bear fruit, if any. On top of that, the surface of attack doesn't get any bigger than it already is, and having efficient malicious attackers with no agenda other than "fuck shit up" means that code occlusion isn't a problem and thus countermeasures wouldn't be hard to deploy, or if extensive damage is done to a service it can be shut down to prevent further infections.
Still, no reason to believe finding vulnerabilities in a system is AI territory, since it'd require extensive knowledge of how process works, and simply brute-forcing it just won't cut it
Sup /sci/ ex physics here. Does anyone know how exactly the observer effect can actually work? The classic e.g. we were given in my undergrad was a Youngs double slit with a 'detector' at one of the slits destroying the interference pattern.
Thinking about how this would actually work though - I assume you use two different polarisers at each slit & then detect the photon polarity afterwards. SO if this is how the expts performed how come the recorded photons seem to only be affected by one of the polarisers when its wavefunction extends to infinity?
I feel like the answer has something to do with Feynman path integrals/sum over histories but I've not toughed that as they're done at grad level afaik
Pic not related.
>>9102651
I guess you can think about it loosely in terms of entanglement. 'Free' particles have limited entanglement and so exhibit wavelike properties. The probabilistic pattern occurs through slits when particles are not sufficiently entangled with other matter. When they do become sufficiently entangled (aka observed), the probabilistic pattern ceases. In essence, everything about macroscopic matter is highly entangled and it's why weird quantum effects don't manifest themselves outside of very specific situations.
>>9102673
I'm not quite sure what you mean by entanglement (and entangled enough) here. I thought entanglement was only between particles? Doesn't observation cause decoherence?
To observe is to interact.(((period)))
Before I start, I am not the physical intuition guy. I just thought about an actual problem with infinity.
When I was at school I assumed that infinity existed because I could mentally "prove" it existed. And keep making bigger and bigger sets, ergo infinity. (I am not claiming this is a rigorous proof).
My problem lies in this: If our intuition is to prove infinite sets exist, why do our modern axioms put infinity as an axiom? Shouldn't we find a "smaller" axiom and then prove infinity? I mean, just for the sake of being consistent with the idea that axioms should be the simplest of statements. And my main problem is: Why hasn't this been done before?
The rest of ZF's axioms are the most elementary statements in math. They are about the simplest but also the most general object in math. But for some reason when it came to infinity they said "Eh, who cares. Let's just write that an infinite set exists as the next axiom". That just seems wrong to me and it does not make sense. I thought that logicians were autistically interested in reducing all of math to its simplest terms so how come that for just this case (infinity) they decided to ignore simplicity and just write it as an axiom?
>>9102538
If you think it can be proven from the other axioms, then show us the proof.
>>9102538
People have considered this sort of scheme, I think you'll find this article very interesting
https://www.quantamagazine.org/mathematicians-bridge-finite-infinite-divide-20160524/
>>9102538
Because the existence of infinite sets can't be proven with the other ZF axioms. Think for two fucking seconds before asking a stupid question, and post it in the stupid question thread.
Hello /sci/. For various reasons I'm considering switching my major from biology to mathematics. I don't really care whether it's less lucrative than engineering or CS because I'm planning to go to med school (lame I know) after undergrad anyway, so I mostly just want to study math for fun.
My question is, is mathematics a particularly difficult subject to major in? From what I've heard the difficulty is mainly up to me, depending on what electives I take. I anticipate that conceptually in some areas it's probably more difficult than most other majors, but that it probably wouldn't be as time-consuming or have as heavy of a workload as something with a lot of labs and projects like CS, engineering, or physics.
Any advice on this or in general about majoring in mathematics? Thanks.
>>9101799
It is noticably harder than most majors (save for Physics) and if you want to study math for fun I would recommend counting your blessings and learning on your own while still enrolled in bio.
>>9101799
>Math Major
>For pre-med
Just take a minor, do not do something really stupid that it could fuck you up really bad.
You're really going to need the biology and chemistry courses for premed, you can always do a PhD in Math after MD, but I think you will never have the free time once you have a MD, OP.
Seriously just take a minor, don't be stupid.
The only way you can switch to Math is to drop out of premed entirely, but this is a total life change that you must reconsider really carefully.
Also I want to titfuck the girl on your pic
>>9101799
All Russian women are ugly.