Archived threads in /sci/ - Science & Math - 1454. page

Shut up, fag.

>>8283876
i mean yeah it doesn't have inherent meaning

but religion exists as a way to give it meaning for people who either come to the realisation you have or just follow it because it sounds good

you cut out at 7:23 btw

>>8283876

Please write these thoughts down, so that I can read them and reply.

I can't listen to audio where I am.

wat

>>8283673

an antenna is an arrangement of metal.
arranging the metal in a fractal pattern increases is efficacy.
the circulatory system has a fractal pattern

would the metals located in the blood cause the circulatory system to be able to act as an antenna?

it's a pretty simple question dude

>>8283664

In Star Trek: yes

In reality: no

If you had a receiver with no need for an antennae better than the blood of a person, it probably doesn't need an antennae at all.

>>8283637
What is that? Can I eat it?

>>8283638
>file name
>intestinal bacteria
You can, but I don't believe it's going to be tasteful nor good for your health.

>>8283638
You already ate it.

>what is natural selection

>>8283446
>how does natural selection affect a species that is perfectly adapted to an unchanging environment

Dysevolution due to differences between the conditions we evolved under and those we now experience, often in excess.

eating your girlfriends vagina is more romantic than anthropomorphizing hypothetical alien races.

>>8283431
This is why i love /sci/. The trolling is much more intelligent than hurr durr ura fag

>>8283431
>eating your girlfriends vagina

What the cuck? People who eat pussy disgust me. Pussy is not meant to be eaten. Well trained bitches will eat the dick and don't ask to get eaten back.

I've never licked a single pussy and I've gotten my cock sucked hundreds of times.

Git gud, beta cuck.

>>8283368
>I have a degree in CS

I'm so sorry.

>>8283400
Yeah be so sorry that I make 6 figures
There are many facets of life and advantages and disadvantages of certain degrees.

>>8283368
>i want to understand things for the sake of understanding them and then just keel over
utterly pointless senpai. just get high and enjoy this pointless ride.

>>8283244
Many great questions.

Many great questons for google to answer.

>>8283265
I tried google but I didn't find any concrete answers.

File: chemotaxis.gif (2MB, 280x203px) Image search: [Google]

2MB, 280x203px

>>8283244
>WHEN they are harmful for our health
When they get where they shouldn't be inside your body in significant numbers to colonize. Gram negative bacteria will make you feel ill if you ingest enough as their cell wall contains a component that is recognized as toxic.
How many bacteria it will take to make a person ill would depend on the general health of the human, so it varies.

>>8283244
>How much of them does normal soap remove?
Not perfect, but washing vigorously with soap will greatly reduce the number and chance of infection.

>>8283244
>How much does alcohol disinfectant remove?
It's less effective in practice as alcohol gels are not made to be washed away like soap. Better to wash with warm water and soap if possible. Better yet is bleach on counters, workstations, etc.

>>8283244
>How far does bacteria spread out and how long does it survive on an inorganic surface?
How far a bacterial colony spreads is dependent on factors like how hospitable the environment is to that organism, motility, generation time, etc.
Some bacteria (Genera Bacillus and Clostridium) can produce endospores that will allow them to stay in a hibernation-like state practically indefinitely.

>>8283213
Attenuation is a fucking bitch.

>>8283222
Even if the signal degrades to the point of not carrying enough information to be decoded, it'd still be enough to be recognizable as once having decodable information.
That range is hundreds of light years.

Besides that, stellar manipulations would be easy to detect over thousands of light years.
All it'd take is one species to go interstellar for that type of influence to be detected.

But there hasn't been any.
If we imagine that in 1000 years, we colonize other planets, why hasn't it been done in 10 000 000 years?

It is extremely unlike that we'd be the first.
Therefore we're likely to die beforehand.

>>8283252
>Even if the signal degrades to the point of not carrying enough information to be decoded, it'd still be enough to be recognizable as once having decodable information.

Not at all. Look at the signals we do get. They come from some of the most powerful objects in the universe.

>The Jansky (symbol Jy) is a non-SI unit of spectral flux density equivalent to 10 to the -26th power watts per square metre per hertz. As a yardstick, 10 to the -26th power watts per square metre (1 Jy) would be about the same energy received on Earth from a 100W light bulb (radiating in all directions) at a distance of more than 7 times that of the trip from Earth to Neptune. Only the Vela pulsar exceeds 1 Jy by any significant amount (5 Jy @ 400 MHz).

Now imagine humans trying to send out a comprehensible single to anything else in the galaxy.

>>8283023
>Is geometry actually cool?
If you're stupid/American

>>8283023
>Is geometry actually cool?
no

Yes, but probably not worth getting a degree in

>>8282958
More importantly, to have a career in astronomy you need a passion of math and physics.

Popular astronomy is nothing like actual astronomy work.

File: ac0d547f6e06b458360db107035b47c8.jpg (20KB, 236x364px) Image search: [Google]

20KB, 236x364px

>I'm too dumb to do X profession, feel bad for me /sci/

I do, actually. Shitty buzz homie

> i like planets and le space documentaries therefore i have a passion for astronomy

lmao brainlet

>>8282859

Kerbal space program beat you to it time for a new idea m8

>>8282867
yeah true, my game is better tho

bump

>>8282859
you obviously don't know enough to build a game.

but I'd like to see KSP with real world data. Including the solar system, earth's dimensions etc.

>>8282800
Buckling analysis in structural engineeeing is a biggie

Now you know why no one respects females engineers, 90% of them ride the gravy train just because they have a vagina

>>8282814
>90%
Citation?

>>8282800
>chemical engineer
>chemical
Now you know why she doesn't know what eigenvalues/vectors are. A lot of chem majors go through their entire program without ever taking a linear algebra course or even completing the calculus series in general. They hit subjects like quantum chemistry and coast by the derivations for stuff in quantum mechanics, which means they never fully understand the mathematics behind the results or the physics.

>>8282705
>If it is, then doesn't that mean there are only a finite number of positions a particle can be in?

no, you can also have an infinite descrete grid

I don't believe that our universe is discrete in such a simple sense. If it is compact, particles would have descrete energy states but it is very likely that we could never measure these because of its size.

>>8282705
In this case, discrete means there's a smallest, indivisible unit for time,distance, and therefore energy.

This would break quantum physics in the sense that at that scale, position and momentum could be known exactly.

The universe most likely is not discrete.

>>8282705
>Is the universe discrete?
No. All models of physics depend on the infinite differentiability of space-time.

>>8282732
>If [the Universe] is compact, particles would have descrete energy states
[citation needed]

>(2^2+2^2)/(2*2+1)=8/5 is an integer

>>8282702
you go back to school and report underage posters

>>8282702
Let k =
a2 + b2ab + 1

We assume that there exist one or more solutions to the given condition for which k is not a perfect square.

For a given value of k, let (A, B) be the solution to this equation that minimizes the value of A + B and without loss of generality A ≥ B. We can rearrange the equation and replace A with a variable x to yield x2 – (kB)x + (B2 – k) = 0. One root of this equation is x1 = A. By Vieta's formulas, the other root may be written as follows:
x2 = kB – A = 1/A(B2 – k).

The first equation shows that x2 is an integer and the second shows that it is nonzero (if it were zero, k = B2, but we have assumed that k is not a perfect square). Also, x2 cannot be less than zero, because that would imply that –kBx2 ≥ k which implies that 0 = x22 – kBx2 + B2 − k ≥ x22 + B2 > 0 which is a contradiction. Finally, A ≥ B implies that
x2 = B2 − k/A < A which implies that x2 + B < A + B which contradicts the minimality of (A, B).

I think it is right.

>>8282625
/b/^2 ? pls kill me

(b)/(1/b) = b*(b/1) =b^2

>>8282625
1/x is the multiplicative inverse of x (:= inv(x))
b/(1/b) = b*1/(1/b) = b* inv(1/b) = b* inv(inv(b)) = b*b =: b^2