Archived threads in /sci/ - Science & Math - 1535. page

>>8203936
Because God wants all his children to experience both pleasure and pain, an orgasm being the epitome of pleasure for a woman.

I assume you mean aside from general pleasure from sex, which

Women generally are more likely to orgasm with a partner that they know and trust, so it could be to facilitate pair bonding in order to help raise children.

Sex is about a lot more than fertilization, it is the strongest form of bonding.

Also, male orgams and ejaculation are not the same thing.

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>>8203863

>redpill

>>8203899
Reddit or summerfag?

>>8203863
>does it actually help your teeth?
No. Fluoride strengthening teeth is a meme, and it could not work at all given how long water stays in your mouth.
>is it toxic?
Yes. Fluorosis is real and not genetic.
>if it doesnt help your teeth, then why is it in the public water supply?
Ask your grandfather who worked in the concentration camps. :^)

how will this allow your dad to be a scientist?
what does that have to do with your education? pick what you like.

>>8203781
He switched to the private sector when he married to provide for the family. Im just trying to figure out what industry there is space left for me. Software and Energy seem to be as big as ever, car industry doesn't seem to be doing to good and I only have the vaguest clue on what it entails to be an 'electrical enginner'.

>>8203777
>he keeps saying is "the semi conductor industry is dead".
In spite of much noise in the Valley this is just wrong.

Good engineers in fab, analogue design etc are still needed.

more or less

>>8203433
They are too simple to be useful models, they are nice as examples that simple structures can be very hard to analyze and have surprising properties because you can visualize them (in contrast to e.g. lambda calculus)

>>8203433
I tried reading A New Kind of Science by Wolfram, he goes on and on about how his analysis of automata will have a profound impact in every field of study, but it comes across as 100% bunk.

>>8203212

That is weight is measured in newtons.

Therefore 1kg of lead is heavier.

Being more dense doesn't change anything if the weight total is 1 kg.

>>8203218

Yeah I just realized I am an idiot. Thanks Yahoo! Ansers :)

"1 kilogram is a mass. Weight is mass times the accelleration due to gravity, which on earth is about 9.8 meters per second squared. Thus both the feathers/butter and the lead weigh about 9.8 newtons or 2.2 pounds. "

tfw i learned about that in number theory last semester and actually know what it means c:

>>8203362
Please do tell

>>8203368

it's euler's function and it gives the carnality of the group of units mod(n)

>>8202389
Well, maybe it is because this is a commercial book and not a research paper.

I mean, if I was a psychologist looking to make easy money then all I would have to do is spend some time looking for the 30% of psych research that is not bullshit, compile it into a book for the average reader and then sell that shit.

>>8202389

It's a layman friendly text that uses analogies and doesn't really go into any depth regarding the neuroscience aspect of psychology.

It's a good start.

If you want a similar thing that goes into a bit more detail and also has a narrative, then I’d recommend Memoirs of an Addicted Brain by Marc Lewis.

>>8202389
Interested to hear this as well. I've seen that book gotten recommended dozens of time.

What were the main three aspects did you guys learned from this book?

Thanks

>>8202096
Hydrogen will never be this clean futurist fuel that will power everything. It could be a clean-ish energy storage system, but production involves large amounts of electricity, which leads to a minor energy bonus when proper electrolytes and catalysts are used. As such, you wind up putting a lot of effort into an unstable energy storage system which drives an engine that doesn't put out any more horsepower than an electric car, all with a comparable range to the electric car.

In layman's terms, hydrogen probably won't be able to compete with electric vehicles in any impressive way. Shut up and let the professor stroke his intelligence and kiss ass for your grade's sake.

>>8202096
he might. multiple OEMs are working on fast-response hydrogen cells and have come quite far already. plus, batteries have always been the natural enemy of car OEMs since they're fucking expensive and there's no real leverage over corporations like Samsung, who provide them.

so much for the pros. the cons are, and have remained for quite some time:
- production and distribution of hydrogen in a safe manner is a nightmare, same for costs
- batteries are still getting better at enormous rates, so the jury is still out on which technology will have less drawbacks
- producing hydrogen cells is not exactly a manufacturer's dream, even compared to buying battery cells and even if they're awesome
- the cost of transferring vast networks of contracted workshops to new technology are at least estimatable for electric with batteries; for hydrogen cells, nobody knows

so yeah. he might be right. difficult to say right now. then again, 10-15 years is probably what you can expect from current electric cars in terms of economically sensible life expectancy, so if you want to buy an electric ride now, go ahead - you'll need a new one in at most 10-15 years anyway.

>>8202116
>shut up and let the professor stroke his intelligence and kiss ass for your grade's sake

exactly what I've been doing. thanks for the reply!

>>8202031
no

>>8202031
What I find funny is that memetics is the biggest meme field. No one takes it serious except some admirers of Richard Dawkins, such as Redditors and Daniel Dennet.

>>8202031
Yes.

It's shit tier. Literally code-monkeying for biologists.

>>8201813
Nothing evolves unless it has pressure to do so, the only exception is cancerous mutations.

>>8201813
This reminds me of something I discovered recently related to evolution: The main story people want us to believe is that 4-6 million years ago, humans didn't exist, and that we had a common ancestor with a chimpanzee. They say that this "wan't a chimp" but that it also "wasn't a human." So that means it would have to have features of both. The problem is, chimpanzees don't have features of both, and humans don't have features of both. If humans and chimps don't have features of both, then how could the common ancestor have features of both? That means either humans evoluved from chimps, or chimps evolved from humans. Obviously since humans are more advanced than chimps, the humans must have "evolved" from chimps. However, if chimps evolted into humans, then how are there still chimps? According to evolution, birds evolved from dinosaurs, therefore there are no dinosaurs left. If humans evolved from chimps, then IT MAKES NOT SENSE FOR THERE TO BE ANY CHIMPS

>>8201824
This is wrong, evolution is defined as change in gene frequencies, which happens all the time. Natural selection is just one of the forces driving evolution.

> ~375€
thats a lot dude :V are they any good ?

>>8201833
I'm not sure if you're trolling with that post, but I haven't actually bought one yet (let alone two).

My summer gratification money was ~3600€, so I got enough left to spend on something nice.

>>8201833
Dobsonian mount telescopes are usually the best bang for the buck

>>8200283
Psychology is closer to natural sciences than to philosophy.

I mean the problem with psychology is that it is too easy to just insert your political opinions into it, making it a 'quest for what you want to be true', like philosophy, but it still uses the scientific method.

We need regulations, as we discovered some time ago (70&% of psych research found to be bs) that psychologists cannot regulate themselves.

We need an institution that hires psychology bachelors or higher that approves all research for publication if and only if they can reproduce the results, that will be communicated to them by the researchers.

To make sure this works, give an incentive for the workers to want to find flaws in the research. Something simple like give a 500$ 'bounty' to any team working in the institution that can succesfully discredit a study.

This would mean that psychologists would not have to defend their claims against their peers (that politically agree with them) but also with an opposing force of other psychologists that are actively looking to discredit them.

>>8200283
Psychology should be more scientific imo.

Now:
>printing press
>not technology
though the claim it's making us anti-social is silly, rather it's enabling us to not have to be social. I sometimes wonder how social we are as a species really, if it's a matter of circumstance more than a matter of instinct. I think we're less social than we think we are, only social because we need to be to survive but provide a means of doing something without putting up with other people and the person method is obsolete.

>>8200313
That sounds like a good idea, I see what you mean about publishing bullshit. There was anon the other day that said he had made up 50% of his statistics in his peer-reviewed sociology journal which made me cringe.

>>8199869
All I can say is that a great deal of tech comes from the military:

internet
sattellites
rockets obviously
GPS
nuclear energy ?¿
radar
computers where rushed out for the enigma thing
(more examples anybody)

>>8199869
With or without Hitler, the Treaty of Versailles was destroying Germany. Someone other than Hitler would have taken his place.

>>8199887
maybe, but the chances of another crazy fascist planning to genocide all Jews in camps taking power would be low. It'd likely be a communist authoritarian government instead. But that's besides the point because in this hypothetical world no WW2 ever happens

There's no way to tell because there are far to many variables affecting the sex of a child

>>8204348
That's completely spot on. Le reddit doesn't seem to think so.

https://www.reddit.com/r/math/comments/4spwm1/in_the_famous_question_i_have_2_kids_one_is_a/

This shit is hilarious.

>>8204355
>/r/math

if you want to suppose that it's a perfect system it would be a 3/4th chance of being a boy and a 1/4th chance of being a girl

tell me that's the conclusion they came to I don't want to look

The parts of his mind that control critical thinking, memory and bodily function are still intact.

I bet he dies before 60

>>8200577
It looks like he is missing the tissue from inside his brain. Honestly, most of what people think of the brain is actually just the cerebral cortex (surface of the cerebrum, which he has). Of course, as I understand it, the insides of the brain are important too because they provide connections to different places on the cerebral cortex. By the way, I'm not really a neuroscience fag. I took a single neuroscience class and mostly focused on drug chemistry.

>>8200577

Neuroplasticity and the extremely slow rate of erosion allowed for adaptive rewiring.

Pretty cool, OP.

Thanks for sharing.