Archived threads in /sci/ - Science & Math - 46. page

Just put a 9 before your first 9

>>9155471
then it would still be 0.999...

>>9155473
Then just put a 9 before the first 9 there

/sci/'s consensus is that there isn't one.

Both but not proportionally
>>9155114
/pol/ post

>>9155109
Why is it hard to believe that pumping CO2 into the air causes global warming via the greenhouse effect, which is a well documented phenomena? Anyone who denies global warming is man-made either has ulterior motives or thinks he is fighting the good fight against liberals.

tfw you couldn't even make an internal combustion engine for a caveman because he hasn't invented metal yet and you know f/a about smelting... or carburretors...fml

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“The Vintner”

After getting horribly drunk on a radical new brew he made, a homebrewer ends up in the distant past (3,000 B.C.E.) and must time travel through various times to return to his own time.

Like Sliders and Quantum Leap mixed in a bottle, where the “hero” must get completely passed out drunk in order to advance to the next era in civilization. It will not work with the same brew twice. He must make a new brew that does not exist in that era for it to work. He becomes responsible for many of the more famous/staple brews in civilization. General exploits follow each episode in trying to create a new brew in that era with ingredients in whatever random location and time he ends up in. His drunken time traveling leaves him hung over and with a fuzzy memory between his time traveling trips. The story line focuses heavily on solving other people’s problems through alcohol and knowledge he attained when not hung over and asleep during college lectures.

He finally makes it back to his time, only to get drunk at a party after mixing up a new drink out of habit and ends up passed out, on a busy highway, while hover cars zoom just inches over him. That being the last scene of the last episode.

>>9153422
Regardless of what you were able to do, you would probably be put to death for being possessed because of speaking in tongues (as 'English' back then was completely different), and for creating things that could only be the work of the devil as far as they knew.

>>9159472
>So we all know that pornography fucks up your brain
That's a matter of perspective, bud. And has it been proven from any perspective anyway?

>>9159472
>So we all know that pornography fucks up your brain, it fucks up your reward system etc
Do you have an actual source for that?

>>9159621
http://jamanetwork.com/journals/jamapsychiatry/fullarticle/1874574?=

Similar to theories taken from addiction research, it has been speculated in popular science literature that pornography constitutes a prewired, naturally rewarding stimulus and that high levels of exposure result in a downregulation or habituation of the neural response in the reward network. This is assumed to elicit adaptive processes in which the brain is hijacked, becoming less responsive to pornography.11There is common agreement that the neural substrates of addiction consist of brain areas that are part of the reward network such as midbrain dopamine neurons, the striatum, and the prefrontal cortex.12,13The striatum is assumed to be involved in habit formation when drug use progresses towards compulsive behavior.14The ventral striatum in particular has been shown to be involved in cue-reactivity processing of various drugs of abuse15but also in processing of novelty.16Compromised prefrontal cortex function is among the major neurobiological modifications discussed in the research on substance abuse disorders common in humans and animals.17In studies on pharmacological addiction in humans, volumetric alterations have been shown in the striatum and prefrontal cortex.

cont.

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>still browsing a Taiwanese basket weaving bbs catalogue

>>9159435
>>9159439
And you guys try to act superior. Pathetic.

>a group of Math PhDs writing random proofs for their widely recognized TV show to amuse themselves get published
It's not THAT hard to be published, you know.

I know the well is infinite and non uniform at the top, as apposed to an ordinary potential well that is uniform from top to bottom, but maybe with set theory?

looks like turdlets leaving an anus.

>>9159380
>asking serious physics questions in sci
>not realizing it's just a bunch of high school kids and engineers

but to be serious, no clue man. I never solved problems similar to these (though I'm afraid this might be a quantum-gravity problem...)

no i have a calculator

>>9159375

I have one but I don't know how to use it!

I also have an abacus and a compass set.

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>>9159375
no thanks i have a smartphone
>abacus and a compass
no thanks i have a smart phone

please step aside for the best invention still useful today, and give a big round of applause for,,,
the scale

Method of Loci

>>9159348
Probably spaced repition with a tool like Mnemosyne or equivalent.

>>9159348

I play quizzes on sporcle frequently and have memorized or internalized the following:

countries of the world
flags of the world
periodic table
-dozens of other lists of geographical information

I'm fairly good at memorization, is my point, though it can be a dull activity of course. Depending on the information to be memorized, I've noticed a few things that work for me:

-divide and conquer. Break a large list of information down into like 2-5 things at a time, based on each small group having some definite relationship to each other that the rest don't have. Get that one figured out and drill it a bit, then keep going. You know you've got everything in "that" group once you've counted up to 3,4,5, whatever it happens to be (you store this number as well).

Example: what are the five african countries right around Lake Victoria (a great big lake) in east africa? Answer: Kenya, Uganda, Rwanda, Tanzania, Burundi. CONTEXT: note the generally vowel-ending african-sounding names of each one. Rwanda was that place where they had that big genocide in the Clinton years. Uganda had Idi Amin, and Kenya is known to be relatively stable by African standards.

The latter notes lead me to my next point: contextualize. Give it at least one other connection to something else that you know or have heard about in life. In the above case, I "personify" the countries, by relating them to news coverage-one-line history that I know. Take Americium, an obscure actinide in the periodic table: this is the stuff in a smoke detector that makes the thing go off when there's too much smoke. That's literally the only other thing I know about it.

A third possibility deserves greater exploitation and should actually be taught, if not having specific examples given in class: The Dirty Mnemonic. Years ago, a comedy program gave the following:

Phylum-Class-Order-Family-Genus-Species: Please Come Over For Gay Sex

I have never forgotten it since.

> I believe we can adapt to this climate change and survive but maybe I am just dumb.
We can, but it'll be damn expensive.

Of course we can adapt; we're human.

Doomsayers are overplaying their hand. It's traditional community vs corporate oversight issues only on a global scale. Which makes it extremely awkward and touchy because it's not just a matter of internal politics, but the competitive global economy.

>>9159296
>I have been reading so many random articles about "World ending" Or "Climate change will kill us soon"
No you haven't. Can you stop lying, faggot?

wtf is [math] \bar{\mathbb{R}} [/math]

>>9159236
that is
[math] \mathbb{R} \cup \left \{ -\infty, \infty\right \} [/math]

Oh yes, forgot to mention

On that test, I got 5/10, I need to somehow get this point to so that my actual test will be valid

>>9159088
7000 years ago mathematicians got together to decide how the universe worked to keep the physics brainlets busy so that they don't bother us with our research and we just decided on the particles and how they act by chance. We made an infinite list of possible particle sets and rules that would equivalently create an universe like this and then we played a round robbin Go tournament. The winner got to pick which particles made it to the actual universe.

>>9159088
>communication no faster than light
isn't that wrong re:spooky action at a distance? thats partly why einstein hated quantum physics.

>>9159088
Discrete math ie real math is as old as Zeno's paradox. The Anthropic Principle implies a retrocausality that completely explains physical laws, does it not? And there is also the retrocausality of human intelligence that happens within Physics, does it not count? And let's say Nature is all there is, it has to get its library of particles from somewhere, so it must get it from itself, that is, again, retrocausality. Any too big of a gap so far?

>communication must go forwards in time and be no faster than light
So not really, that is a not from Quantum Mechanics, otherwise there wouldn't even be the EPR paradox.

https://en.wikipedia.org/wiki/EPR_paradox

>>9158948
Can someone tell me if there's an online database with all the descriptions so you can cross reference and search things?

Bugs are why I got into science but it didn't pursue it unfortunately.

entomology is the dankers
>>9158967
https://www.ent.iastate.edu/list/directory/120/vid/4
>>9158989
I've always fancied entomology as well. I stopped wanting to be an entomologist by profession when i was around 5 and moved towards marine biology. As an adult ive concentrated on ecology, i can make the most out of my lifelong taxonomy autism in ecology.

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Any theory, equation you have in mind to discover the email?

>>9158947
Are numbers involved in your set of characters?

>>9159054
no, pure alphabetical

>a thread died for this

>>9158896
>neither I, nor my friends understand the concept, therefore the concept doesn't exist

>>9158896
>pooinloojuan
>enlightened

>>9158798
Depends where you want to draw the line between inanimate and animate

lightning

>>9158798
are viruses living? depending on your definition an intermediate structure similar to a virus could be considered a middle step between an empty phospholipid bi-layer and a replicating, living, respirating cell