https://www.youtube.com/watch?v=8KWmJ9FkKjU
What's your best shot at explaning the hum on several cities?
I'm skeptical but this seems clearly like ayy lmao BS from the bible.
You can't explain it with local explanations, since it happens on several cities and locations around the world, even in mountains and beaches.
I'm really skeptical, but this must be some ayy lmao shit.
Why would you assume it was aliens, though? That's retarded.
If you were a skeptic you would be thinking "I do not know what this is" and not jump to some random dumbass untestable explanation that has no supporting evidence like aliens
>>9123420
Hum=sound waves with extremely low frequency & extremely large Wave length.
The source is unclear ... but...
Very low frequency radio waves is used for communication with Nuclear submarines by countries like USA, UK & Russia.
The low frequency radio waves propagate better in ocean water.
This could be (you)r hum source.
Other options could be a far away Butler sound caused by far Earth Quakes, Wind, Storm, thunder, & even Traffic out human activities.
>>9123450
You're overthinking it
The video was faked. They just added some sound effects over the top of mundane footage of a street. Notice how nobody on the street takes notice of the random loud weird sound
Let's say we have some water bears (the "arctic" ones, "vulcano dwellers" and all the inbeween) and throw them on a planet other then Earth.
What factors should appear for them to survive?
What possible turn could evolution take?
Would the water bears alone be enough to built an ecosystem?
If it would imarge, how long would it take for it to start looking like ours?
Hit me with your best shot /sci/
They would all starve to death (although extremely slowly because they're water bears) because they would have nothing to eat except each other.
You need some stuff for them to eat first, like algae or moss
The base of your ecosystem NEEDS to be something that can get energy out of the environment through photosynthesis, heat, or radioactive materials. Water bears are eaters, they don't produce energy
>>9123401
You totally located a gap in my half-baked theory, thanks Anon. Now I just gotta go search for some resiliant water flora
For something to survive, there needs to be
food
water
shelter
habitable temperature
remove any one of these and it will die
Do human males have to compete to reproduce? There is the same number of males as females in the world so does this mean the answer is no? If yes does it mean that certain males have more choice in terms of females?
If you want a good woman you need to compete. There is always a bottom of the barrel skank that will take anyone, but nobody sane wants them.
>>9123320
>Do human males have to compete to reproduce?
How can limp White bois even compete?
>>9123320
Generally males compete and females choose, from an evolutionary standpoint at least. This is because the number of offspring a male can have is limited only by how many females he can fertilise. On the other hand females are limited by pregnancy, so it makes sense for females to choose only the best males since they only get one shot at it per pregnancy and for males to compete for who gets to fertilise as many females as possible.
That's why for species which adhere to this rule, such as humans (at least throughout pre-history) you see male and female reproductive success have high and low variability, respectively.
http://www.newsweek.com/magic-mushroom-discovery-could-reveal-easier-way-make-psychedelic-drug-652033
"In only five steps, the mushroom’s enzymes convert tryptophan, a widely occurring amino acid (a building block of protein) into psilocybin."
"The paper could pave the way for people without advanced knowledge to produce psilocybin on their own, using commercially available synthetic biology kits, Sherman says."
What does /sci/ think about this discovery?
>>9122975
Growing mushrooms is already easy, and a crude extraction is easy aswell.
Still pretty neat.
OBEY mushrooms are one of my favorite lifeforms
>>9123006
But now we can do fun things like clone the genes for tryptophan --> psilocybin production into cells, grow them in a big fucking vat and extract/purify that shit.
Wtf is the difference between (-∞,5) and [-∞,4] ?
[eqn]\left\{-\infty\right\}\,\cup\,\left(4,\,5\right)[/eqn]
the first is numbers smaller than 5
the second is numbers smaller or equal to 4, and including -infinity
The second isn't a set of real numbers because it includes -∞.
Can you help me with this exercise? It's from Lang's undergrad algebra
>>9122784
(a) is trivial
(b) is also trivial
where did you get stuck?
>doing proofs
>>9122787
part b, I don't see how it's trivial
I want to make these Bluetooth earbuds waterproof, or at least water resistant (something close to the IP65 or IP66 rating), and I was thinking about sealing the casing with a non conductive superglue and finishing off with some isolating tape on some parts. My main concern is the lithium battery, maybe I'll wrap it up with isolating tape.
Is this a good plan? Do non conductive glues even exist? What can I do with the part where the sound comes out? Should I just rely on the rubber thing to isolate water from it? I want to know if this is possible from a chemical POV. Also maybe this could help someone else doing a similar project.
Also sorry for my bad English, I'm not a native English speaker.
>>9122792
I was thinking about posting there, but those guys are just dipshits in general and will probably link me back here or DIY (I already posted in the latter)
>>9122781
There exist spray coatings for waterproofing. Just spray the earbuds lightly and they'll make it through rain. If you want to swim with them, then you'll need additional measures depending on pressure.
Also, not science.
Are there any engineers here that can explain why we arent using these kinds of tires on our vehicles
>>9122674
Looks expensive. Looks spongey, thus inefficient for gas.
Just a guess.
>>9122676
>expensive
Cant be any more expensive than a regular tire. It looks like its made of some kind of rubber
>>9122680
Seems legit.
I had to change my tire the other day and I remembered pic related exists.
Seems like people would be able to save money and headaches if all cars were switched with these.
Half of the last Scientific American was devoted to shilling out to feminism. On the back cover, there is an ad for HuffPost. Somewhere in between, there was an article on the intersex 'genders', in which a diagram lists genetic defects of the sex chromosomes.
For some reason, I can't post the cover image.
Wat do?
Shit, wrong image.
>pop-sci shit
Go away.
https://www.youtube.com/watch?v=BbX44YSsQ2I
>>9122604
>prize money $16,000
>not knowing english cost you $1000
What have you done so far in this beautiful year 2007, anon?
>>9122643
If he got it right he won 16,000. Now he only won 1,000. So he 'lost' 15,000.
I need some help understanding here..
Consider the set of all integers. Let us write them down like that:
{...,-3,-2,-1,0,1,2,3,...}
Can we call "0" the middle of this infinite set?
What properties does something infinite need to have a center in higher dimensions than a set of numbers?
pic unrelated
>>9122573
now it's all the way on the left side
{0,1,-1,2,-2,3,-3,4,-4,...}
>>9122599
so, there's effectively no method of creating an infinite set in the way I described?
>>9122573
What do you mean by 'center'?
Found this (Number 5) in a math work for the German 7th form (12-year-old pupils). Any Idea?
The text translates to :
"5. Complete the following sequences.
a) ...
b) ...
c) Tom passes the tree with his bike.
WTF does c) mean? Is it a pun? Is there a solution?
a) The pattern is *n,*(n+1), ... so 120*6 = 720
b) The pattern is +3 + 2n, so 24 + 11 = 35
c) 42
>>9122506
This is retarded, there exists infinitely many possible sequences where these numbers arise, they are only asking you to guess at what the "obvious" one is.
>>9124110
Come on, just admit that you couldn't solve it.
(Just kidding)
Indeed, the answer could actually be anything but since it's for 7th graders and not Maths/Philosophy majors, I'd say the obvious ones are the ones the teacher expects.
Is the golden ratio overhyped?
>>9122453
yes
>>9122453
yes
humanities fags popularised it in ignorance and memes
people slap the golden spiral over any old logarithmic spiral and just pretend not to notice it doesn't fit
see: OP pic
I feel no desire to do anything in my life other than give into mindless hedonism
how do I obtain a gf like that?
>>9122435
inject raw heroin into your bloodstream helps
>>9122435
snorting cocain of your own picture helps
As a manlet, what are my options for chemical and physical modification to allow me to compete with lankfags, both now and in the future? Will I be able to Crispr myself a second growth spurt in my lifetime?
Bruh. Genetics have you fucked. Unless you want to go all lamarkian evolution and keep stretching your legs and hoping for the best.
>>9122388
Don't shit on Lamarck like that. Lamarkian evolution is correct in many ways. You shouldn't have paid attention in AP bio, public school is always way behind.