do people honestly delude themselves into thinking they'll ever get batteries with the same energy density as a hydrocarbon?
>>8773139
Apparently. I was cruising through the news today and noticed a headline sourced from UN pundits and talking heads who think we will be done with hydrocarbons by 2050 - muh saving the climate. In fact they are attempting to make laws to that effect. Endgame, control all hydrocarbons, it's life or death.
>>8773203
>Endgame
they are not chessplayers,
they have no endgame
>>8773203
Have you looked at comparative costs to energy production in the absences of oil subsidies?
Energy is more cheaply available from Nuclear, Geothermal, Wind and Hydro per kW than it is from Coal or Oil.
But oil subsidies artificially reduce the cost of oil and coal production, even though the infrastructure is impractical in the long term.
What went wrong?
>>8772903
They're celebrities, not scientists. Stop legitimizing them.
>>8772903
Left = Real Physicists
Right = Pseudointellectual Fedoras
>>8772903
>heavily romanticize the physicists on the left
>pick popsci promoters and richard dawkins (a real scientist who has made great strides in his field)
>what went wrong?
your post
>DNA repair discovery could lead to drugs to reverse ageing, fight cancer and help space travel
Remember when /sci/ said biology was a shit major?
http://www.abc.net.au/news/2017-03-24/dna-discovery-could-lead-to-anti-ageing,-cancer-fighting-drugs/8380850
>they won nasa's competition
>they beat hundreds of legitimate stem companies
There is no recovery from this, /sci/ is eternally btfo.
>>8772824
I feel like I hear about shit like this every single year, but literally nothing ever comes of it
>>8772824
medicine and biology is actually the last of the low hanging fruit in science.
>>8772824
will take 50 years to pass regulations
superintelligence is going to arise before a traditional biological solution
>try to imagine a billion (to know what it looks like)
>picture as many widgets as I can
>double that
>count them
>there are only 443
How can you increase the mind's eye?
>>8772547
Imagine 443+1
progressive overload breh
>>8772547
>How can you increase the mind's eye?
its genetically, back then in the old days of the pyramids the pharaos were people who could handle large numbers
imagine this: if you have to take care of millions of people then you need to have the ability to handle large numbers .All leaders can handle large numbers.
I completly pulled this out of my ass so I dont know if its true
>>8772547
it's pretty easy to see 1000 as a cubic brick that's 10 units long on every axis
a million is just a thousand thousands
and a billion is just a thousand millions. A trillion is a thousand billions, and so on. Each time you envision a brick you can then take that brick and use it as the smallest unit with which to construct a new brick. Hooray for animal senses and 3 dimensions of space, you can use it count to infinity.
This makes it less daunting when Stephen Hawking says there are ten million million million million million million particles in the universe.
Note: this trick will not help you if you have difficulties counting to ten.
In the proof of the halting problem you can make a grid if Turing machines along a vertical axis and the description of a TM on the horizontal axis. The assumption is this is a list of all computable programs and whether they halt or not for a specific TM on a specific input description. Then you take the diagonal and reverse producing a TM that isn't anywhere in the list, thus proving the undecidability of the Halting problem.
Sometimes this proof is described as meta machine that says if a TM on an input halts, then the meta machine will say it loops, and if the program on an input loops, then the meta machine will say it halts.
What I don't get is why can't you construct such a metamachine that does the above and then another program that takes input this meta machine and does the opposite and thus gives the correct answer?
If metamachine says halt, you know for a fact the program loops forever. If the metamachine says loop, you know for a fact the program halts since the metamachine gives the opposite answer, this new machine gives the correct answer.
Why is this not a fix for the Halting problem?
>>8772311
because it still doesn't get rid of the fact that there is (there could be) a machine that contradicts the whole thing
The Halting problem is another one of those problems that arises from set theory regarding infinite sets. You can't fix it.
Lets assume that I did have a list of all possible computable programs X. We will assume that all programs not in X are not computable. I now want to design a computable program A() that will tell me if any of the members of X halt.
One problem, is A(X) a member of X? If it isn't, then A(X) isn't a computable program and therefore I'd be wasting my time trying to compute it, it would halt. So we should push forward with the assumption that A(X) is a member of X.
if A(X) halts,
A(A(X)) halts,
A(A(A(X))) halts,
A(A(A(A(X)))) halts,
and so on
The list of computable programs X is infinite, because it contains at least as many elements as A^n(X) where n is infinite, assuming A(X) halts.
Since X can be infinitely extended, there is no such program B in X that can generate X.
You should conclude that my first assumption, which was that I had a complete list X of all computable programs, is impossible.
>>8772355
>One problem, is A(X) a member of X? If it isn't, then A(X) isn't a computable program and therefore I'd be wasting my time trying to compute it, it would halt
*wouldn't halt
my bad
post your best R/mathematica/matlab/python graphs
bumpity
ruuuududuuuuuu
come on lads
Does /sci/ has a link to the proof of the Itô formula ? If [math]f \in \mathcal{C}^1 (\mathbb{R_+}) \times \mathcal{C}^2( \mathbb{R})[/math] and
[math]X_t = X_0 + \int_0^t K_s ds + \int_0^t H_s dWs[/math]
then :
[eqn]f(t,X_t) = f(0,X_0) + \int_0^t \frac{ \partial f}{ \partial t}(s,X_s) ds + \int_0^t \frac{\partial f}{\partial x}(s,X_s) dX_s \\
+ \frac12\int_0^t\frac{\partial^2 f}{\partial x^2}(s,X_s) d\langle X,X \rangle_s [/eqn]
Where
[eqn] \langle X,X \rangle_t = \int_0^t H_s^2 ds[/eqn] so that
[eqn]d \langle X,X \rangle_s = H_s^2 ds[/eqn]
I made some research on the net but did not found any proof, only "elements of proof".
>>8775287
I got one in the book 'Financial Calculus' by Alison Etheridge.
>>8775287
Good question actually. I remember searching for this some time ago, and the only things I found were watered down proofs for finance/econometrics majors.
>>8776320
Did some professor made a proof in his online course, in at least one american university ?
Maths and physics books for beginners?
>>8774834
Do you recommend me to start with number theory?
why do I lose all interest in females right after orgasm?
dont tell me the only thing that keeps me interested in them are some neurotransmitters
You're a misogynist.
>>8772722
Lose all sexual interest?
That's the refractory period talking. An orgasm costs your body a lot of energy and nutrition to prepare for. That semen you shot loose was hard to make. So was the dopamine you flooded your brain with. Plus, you're probably dehydrated. In an effort to keep you to fucking yourself to death, your brain takes a fifteen minute cooldown period where you feel pretty sexually disengaged and, as an added bonus, have limp dick for a while.
>>8772722
Men can impregnate around a couple hundred women a year from ages 14 - death.
Women can only have one child every 9-10 months (excluding twins, triplets, ...) from ages 14 - 40 (at most).
Pregnancy is a very sensitive stage so women and their fetuses are extremely vulnerable for those 9 months and need to be fed and protected in order to insure their life and their child's healthy and successful birth, no defects or miscarriages.
Everything else follows from that. "Psychology" and "preferences" are all just consequences of the hard biological limits. In order to pass on your genes you want to impregnate as many women as possible, thus you lose interest immediately after orgasm so you can move on to the next woman and dominate the gene pool.
Sup /sci/
My girlfriend's idiot brother moved back in with their destitute mother and he keeps getting eye infections from all the mold in the house.
Im a cell culture specialist by training, so my reflex is to suggest using some method for dispersal of copper ions. Maybe a dehumidifier full of copper wire or something stupid like that.
Does anybody have any other suggested methods?
move all furniture a bit from the walls and throw out carpets, up the heating in cold rooms
t. villager
>>8776975
Yeah, he's not really able to do that. Its one of those houses where everything is sort of fossilized in position and moving the furniture would probably break it. My girlfriend says there has been mold for at least 15 years.
>>8776967
The cure is to fuck off because you have a gf
I found this in the beach.
Could it be a meteorite?
It seems to be metal but it is shape like weird rock.
I remember seeing a meteorite collection and it looks like those, but dirty.
here is another picture
>>8776878
looks like joe dirt type meteor
>check my vaccination records from the Russian Federation
>it says that several "DNA vaccines" had been administered throughout my childhood
WTF is that? It simply says that it's a "gene B" vaccine. What does it mean?
sleeper agent
>>8776731
I think it should be hepatitis B.
>>8776738
No, here's what it says precisely:
Gene "B" DNA (deoxyribonucleic acid)
Then there's a table with the dates when these vaccines were administered.
>it's almost 2018
>still no cure for balding
Explain this shit.
>>8776334
testosterone isn't an ailment, it's a gift.
>>8776486
Is that why men get balder as they get older?
>>8776489
No it's because they've dealt with women for longer
http://www.kurims.kyoto-u.ac.jp/~motizuki/IUTeich%20Verification%20Report%202014-12.pdf
>>8776174
>>8776188
>>8776190
what does this shit even mean
>circumference I guess?
>an atom splitting
>erm...the big bang?
explain this shit how are space niggers supposed to know what this is when they find it
They are patterns which every advanced civilization should be familiar with. If the finders posess any kind of intelligence, they will know what it means.
>highly advanced aliens find it
>laugh at us because the big bang isn't true
>>8776039
it's the location of our planets based 14 pulsar signal. Space GPS
>big bang
kek