Archived threads in /sci/ - Science & Math - 18. page

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>tfw your thesis manuscript just went over 100 pages

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>>7840928

>Caring about page count

It will be enough when you covered everything you need to, stop worrying about how long it is.

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>>7840942

This desu. This guy's thesis was less than 60 pages long but it obviously did the job (he's actually a full professor now, 5 years later)

http://www.math.u-psud.fr/~fcharles/these.pdf

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PhD advisor wanted not more than 150 pages.

Anonymous

3 years ago. 2016-02-07 16:36:31 Post No.7840913

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3 years ago. 2016-02-07 16:36:31 Post No.7840913

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3 years ago, /sci/ helped me write a paper for my undergraduate class in proteins.

I've since graduated with a BS in biochemistry.

I am deeply saddened to see the state /sci/ is in currently.

It's even more troubling because I came back in hopes to pay it forward.

However, it seems this is no longer the board it once was.

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Where to go to?

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>>7840931

not telling

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If anyone IS actually interested on where to go to, let me know.

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What is math?

I think it is formal objects and their relations.

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You are fucking stupid

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>>7840898

>What is math?

Banach don't hurt me

If he's so smart (6 degrees from MIT and 1 from Harvard), why does he make simple baby mistakes all the time in videos?

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High IQ is highly correlated with autism.

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>>7840890

>7 degrees

WTF?

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>>7840897

If I can recall correctly...

Undergrad and masters in comp sci

Undergrad and masters in mathematics

Undergrad and masters in ele eng

And an MBA from Harvard

Anonymous

Even science is under attack by the Thought Police 2016-02-07 16:00:25 Post No.7840844

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Even science is under attack by the Thought Police 2016-02-07 16:00:25 Post No.7840844

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Even science is under attack by the Thought Police
Anonymous
2016-02-07 16:00:25
Post No. 7840844
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https://www.youtube.com/watch?v=SOXeTDjx8vg

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From Sam Harris to Christopher Hitchens, every single person who has the freedom to speak their minds deeply hates SJW. But it's only a big deal if you make it so. Being offended doesn't give people rights, so all you have to do is ignore them.

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You seem pretty unsupportive of privilege checking anon. Would you like to make a public apology ?

The 3rd MSJ-SI "Development of Galois-Teichmüller Theory and Anabelian Geometry"

>not 1 person lifts

>not 1 female is even remotely fuckable

>every male looks like a stereotypical beta

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>>7840773

>all that wasted negative space

>2000x1500 what the fuck kind of aspect ratio is this?

For fuck's sake, learn to crop people.

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>>7840773

and they're all several times smarter than you can ever dream of being

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>>7840778

Fine by me, I'd rather be jacked, handsome, and of good intelligence than an ugly sperg manlet.

Anonymous

Induction // How does it work? 2016-02-07 14:56:16 Post No.7840762

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Induction // How does it work? 2016-02-07 14:56:16 Post No.7840762

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Induction // How does it work?
Anonymous
2016-02-07 14:56:16
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I somewhat get the gist of:

1. You take a base case and prove that what you try to claim holds for this base case (usually index 1)

2. In the induction step you use a hypothesis as premise (that your claim holds for n)

3. You prove that it also holds for n+1 and therefore for all numbers

But I don't get...

a) the logic behind "let's just assume it counts for all numbers till an arbitrarily chosen index n" and if the claim holds there, it therefore must be true for all numbers following after that.

If I take a sample of 1 to n...

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You prove it's true for 1. You also proved that if it's true for n, it's true for n+1. Therefore it is true for 2. By the same reasoning, it is true for 3. Etc.

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Dominoes and memes

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>>7840762

>a) the logic behind "let's just assume it counts for all numbers till an arbitrarily chosen index n" and if the claim holds there, it therefore must be true for all numbers following after that.

>If I take a sample of 1 to n bunnies to see which of them are white for example, by induction logic, all bunnies must therefore be white?

You're forgetting step 3 that you listed earlier.

If P is your property to be proved, P(n) MUST...

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So we're supposed to believe we evolved from pic related in just a couple of million years of random mutations? What

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>>7840733

Umm, no.

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>>7840733

Only your mom

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Go back to REEEEddit kid

Should /sci/ be split?

/life sciences/ --- biology, neuroscience, genetics, biochemistry, zoology, ecology, botany, medicine, pharmacology, veterinary, etc.

/physical and formal sciences/ --- mathematics, physics, chemistry, astronomy, etc.

Basically, one board for

science that revolves around mathematics and one for science that doesn't use mathematics so extensively.

We already have /his/ for history, but I also propose we broaden it to /social sciences/ so it becomes about anthropology, archaeology, economics, geography, history,...

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>>7840708

No that's fucking retarded this board is already dead enough as is. If you 9000 boards go back to that shithole 8gag.

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m8. the actual population who wants to discuss science is around %10. If you divide that up, the boards will be completely overriden by memesters due to their higher numbers.

Can someone explain this Nasa report to me?

http://www.nasa.gov/feature/goddard/nasa-study-mass-gains-of-antarctic-ice-sheet-greater-than-losses

For those who are too lazy to click on the link, Nasa is basically saying that the mass gain of antarctic ice sheet is greater than the loss

Does this disprove the climate change?

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>>7840707

For it to disprove anything there would have to be valid assertions in the first place.

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>>7840712

But it already disproved the report for IPCC about climate change

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It actually proves climate change. It means the climate is changing for the better :^)

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Is there any truth in this, friends?

I've seen it floating around.

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It's incomplete. He said :

> If the bee disappears from the surface of the earth, man would have no more than four years to live without honey.

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Pollination by insects is necessary for many plants that we grow. If pollenizers were to disapear, expect major famine all over the world.

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>>7840639

Another proof for God and his precise balance. It would be an astronomical chance for evolution to "create" bees that pollunate which happens to be a vital necessity for life to grow.

Thank you God.

Is he right? And why?

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> physics is easy

> sociology is hard

Didn't expect much from a rapist anyway.

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>>7840577

his sentiment is more or less true (humans are hard to predict) but the way he phrased it is pretty shit

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>>7840577

He is not right. Because sociology is a pseudo-science.

Anonymous

science kits for adults 2016-02-07 10:39:21 Post No.7840397

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science kits for adults 2016-02-07 10:39:21 Post No.7840397

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Hi everybody. I am interesting in teaching myself various areas of science related subjects and now wish to delve into a more sort of hands-on experience.

I have been searching around for kind of adult-orientated chemistry kits, electronics/circuits kits, etc. - anything practical so I can view things in a way that textbooks can't help with

Obviously, most things on the market are quite simple and intended for kids so I was wondering what you all may have found to be helpful in the past or even currently. price is not an issue.

Thanks so much in advance

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>>7840446

You're right, yeah.

I am currently looking at rasp pi and arduino sets. raspberry pi seems to have more of a noob friendly community so i may go with that first.

thanks man

Hey /sci/, if you take a sequence of functions such as

[math]f_n(t) = a_n cos(n.t) + b_n sin(n.t)[/math] such as f_n tend to the zero function, show that a_n and b_n tend to 0

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>>7840368

That's not homework.

Just interested on how you do it.

Anonymous

Millenium Prize Problems 2016-02-07 09:01:38 Post No.7840297

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Millenium Prize Problems 2016-02-07 09:01:38 Post No.7840297

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ITT I will try to solve (and in fact solve) all the Millennium Prize Problems one by one. I will do so by a new proof technique that has been proved to be quite powerful. It combined homothopy theory with algebraic geometry. Having said that, the proof technique itself is elementary though. So, let's go ahead.

1. [math] \displaystyle P=NP [/math]

By definition, polynomila algorithms admit decomposition in chains of smaller polynomial algorithms. Consequently, polynomial time algorithms do not solve problems where blocks, whoose order is the same as the underlying problem, require simultaneous resolution. Thus, in fact [math] \displaystyle P \neq NP [/math]

2. Hodge conjecture

Assuming that if a compact Kähler mainfold is complex-analytically rigid, the area-minimizing subvarieties approach complex analytic subvarieties. The set of singularities of an area-minimizng flux is zero in measure. The rest it left to the reader as an easy routine excersize.

3. Riemann hypothesis

This is a simple experimental fact. [math] \displaystyle 10^{13} [/math] roots of the Riemann hypothesis have been already tested and it suffices for all practical applications. In fact, one state a suitable statistical hypothesis and check it on the sample of, say, [math] \displaystyle 10^5 [/math] roots.

4. Yang–Mills existence and mass gap

Well, discrete infinite bosonic energy-mass spectrum of gauge bosons under Gelfand nuclear triples admits non-perturbative quantization of Yang-Mills fields whence the gauge-invariant quantum spectrum is bounded below. A particular consequence is the existence of the mass gap.

5. Navier–Stokes existence and smoothness

(To be continued)

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>>7840297

(Cont.)

I haven't worked this one in such detail, but observing that

[math] \displaystyle \| L (u, v) \| ^ 2 = \sum_{n \ge 25} u ^ 2_ {2n} v ^ 2_ {2n +1} / n ^ 2 \le C\|(u_n/\sqrt n)\|_4^2 \|(v_n/\sqrt n)\|_4^2 \le C\|(u_n/\sqrt n)\|_2^2 \|(v_n/\sqrt n)\|_2^2 = C \left (\sum u ^ 2_ {n} / n \right) \left (\sum v ^ 2_ {n} / n \right) [/math]

one can easily find at leat one closed-form solution applying the bubble integral. In the equation, [math] \displaystyle L [/math] is a bilinear operator.

6....

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Where should I best publish it?

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>>7840390

>Where should I best publish it?

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