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Archived threads in /sci/ - Science & Math - 264. page
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Is this bullshit or not? I lack the competence to tell. Is this considered refuted?

http://www.theuniversesolved.com/evidence.htm
http://www.simulation-argument.com/simulation.html
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It's not disprovable in any case, just a modern version of Descartes' demon they're using to sell books to you.

Anyway, I would like to point out that the "simulation argument" doesn't really stack with evidence that physical properties are quantized, etc. in terms of credibility. Not in the way you might think it does at least. I mean, are they saying these artifacts of the simulation are present in the real-real world or not? If they are, then all it indicates is that reality is simulable. If they're not there then our world has already...
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>>7668282
>Would the knowledge that you are living in a simulation, with no way to know the kind of simulation it was, carry any moral weight? Would you do anything differently?

No, I would not, because the "simulation" would still be all the "reality" we will ever know. It is practically indisguishable from reality.

Subject is still interesting tho
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>>7668282
I would look for a way to threaten the stability of the simulation so that I could get in contact with the runners of the simulation and try and force them to give me a robot body in their world.

Nah, just kidding, I'd tug at the stability of the universe if the opportunity arose even if I didn't think I was in a simulation.

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Why does /sci/ hate on engineering so much, but glorify pure math and science? All that engineering is is pretty much using what scientists and mathematicians have discovered to create/modify stuff. In order to do this, engineers have to understand what scientists from a range of fields understand...

Soooo...what's the problem here?
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>>7668192
I'm not sure to be honest. I happen to think anything involving science or math is worth the praise. Computer science too, but /sci/ doesn't like CS majors either. Maybe it's because people here just like to argue and show off how much they know in one field.
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>>7668192

Because it's easier to pretend to be a theoretical scientist or a mathematician than it is an engineer.

Engineers usually actually produce something. It would be quite a feat to convince yourself that you are an engineer if you haven't done jack shit in your life. On the other hand, the work of a mathematician or theoretical scientist is usually more ephemeral, their work might not bear physical fruit in their lifetime and sometimes it is entirely theoretical. Much easier to delude yourself into...
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>>7668192

We don't. There's one really autistic physics drop out that thinks engineering is blasphemy to the church of physics that used to spam gay porn and one tryhard kid that parrots him to fit in here.

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If there are an infinite number of universes with an infinite number of possibilities does that mean there is a universe where Christianity is accurate and factual?

And does /sci/ believe in the Boltzmann brain theory?

>"A Boltzmann brain is a hypothesized self aware entity which arises due to random fluctuations out of a state of chaos."
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No. Mathematical infinity does not invite absurdity. There are infinitely many odd numbers, none of them are even.

The Boltzmann brain theory is retarded. Life is cosmic orders of magnitude beyond cosmically unlikely. It takes more than "random fluctuation and high chaos" to form a sophistication of structure that is able to be functionally aware of itself. No matter how many fantastic-sounding nonsenses you throw around, abiogenesis and evolution are laborious and gradual processes. They don't just randomly happen all at once because you don't understand...
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>>7668203
>"Life is cosmic orders of magnitude beyond cosmically unlikely." cancer
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>>7668203
>"I am smarter than Boltzmann"

4chan.org

>Our sun is the Manlet or Starlet of the universe

How does this make you feel
>>
>>7668139
>manlet or starlet
there was an attempt.
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>>7668139
Feels just fine to me
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Alive.

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Please explain how existence can come from non-existence. I'll wait. Oh wait, that's right. It's completely impossible and is just as dumb as trying to debunk determinism.

Non-existence, by definition, isn't a place or a thing. So how the hell can existence come FROM a PLACE that is non-existent? Non-existence is a concept of the human mind and nothing more. Non-existence, by definition, has never existed and will never exist. There is no non-existence pre-birth, and there is no non-existence post-death. There is only the conceptual non-existence that...
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>>7667968
Who says it did?

The big bang was not the creation of the universe, it was the beginning of the expansion of the universe.
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>>7667968

>>>/x/
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>>7667968
So what do you suppose the nature of meta or semi physical such as phase space or spin would be involved in non-existence OP?

Just curious how such would fit in to your synopsis of the semantics of nothing

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>tfw you get a problem wrong on an exam because of some elementary math error
Is there a worse feeling?
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>>7667887
Knowing you're in way over your head but you have to keep going to the class to keep up pretenses and it feels like you're drowning but you don't know what you can do about it.
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>>7667887
>making elementary math errors

No I do not know this feel
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Knowing that you will live for only five years is a pretty negative feeling.

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Hello, science people.

I have a difficult problem to solve and I know nothing about that kind of science so...

I have a heart "disease" ( https://en.wikipedia.org/wiki/Brugada_syndrome ) which means it is excpected to stop earlier than most people. BUT. I am actually absolutely impatient for that thing to happen for numerous reasons.

Problem, it is unacceptable for my death to be considered suicide.

What medecines or drugs should I acquire and take to just make it so that people think " Ok, so he had a Sudden unexpected death syndrome, his heart just stopped."

I couldn't thank you enough. But I would try.
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Wiki link says that death caused by the syndrome is very sudden.

Congrats! You have a method of dying that will be quick, less painful than many and not considered as suicide. If you can find a way to make yourself happy with dying and also happy with living, you'll have all of the man existential problems in a life like ours completely sorted out.

Learning to be happy with both life and death is, of course, the rub. Since you are good with the latter, I suggest reading various philosophies to see if you can find a way you like of living.

"What...
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>>7667871
Oh.. I have that book by Camus... I never finished it.. I'm going to, while waiting for other answers but thanks for your time and advices.
>>
Bumping. I wish you well OP.

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ITT cool scientific technology
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looks like a piece of shit granted,
but still remains the only vehicle ever designed and built to land on another world.
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>>7667830
Absolutely not true, the many varied Mars rovers come to mind (specifically their landing platforms). Next time specify manned landers.
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>>7668024
Don't be problematic. You know what he meant.
Who gives a fuck about rovers.

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whats the difference between meth amphetamine and adderall?
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>>7667819
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>>7667823

is one just stronger?
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>>7667828
Yeah, but by like, a lot.

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So, for my Advanced Physics course we were assigned the project of building a device that could launch a tennis ball. They will be scored for accuracy and distance, and it is a competition. What I'd like to know from you guys is how many different ways there are to propel something, such as a spring-powered mortar-style launcher or torsion-powered swinging arms as in pic related.

I like to hear what you guys know of.
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Two motorized wheels squeezing a ball out like a fat man shitting out a few hamballs she had for din din.
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>>7667822
Yes, I hadn't thought of that one. Any more?
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>>7667806
you could always go for a good old fashioned cannon, chemical propelent works anon

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>Most durable known organisms
>Can go without food or water for more than 10 years
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>>7667701
Look at me now! I'm standing on my haunches. I got caught, stealing from the lost and found.
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>>7667701
>yfw they originally came form a foreign star system, frozen in water ice of a comet
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Why are they so cute bros?

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What type of human behavior still baffles you /Sci/? For example: Why do we still tip?
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Iwonderwho'sbehindthispost.png
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>>7667521
Juggaloes
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>>7667521
Ameritards spending money they don't have on items they don't need, using mortgages and loans like there's no tomorrow.

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What determines the color of a molecule? What determines if a a pure element will be matte or metallic?
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something about the distance between the electron levels

so conjugated systems (shit with double bonds) usually have lower energy levels, that allows for electron transfers of the appropriate energies to correspond to visible light

Speaking with 1 semester of Chemistry background
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>>7667540
You're basically right. Essentially for light to be emitted an electron needs to go from an excited state to a lower energy state. The released energy will be in the form of a photon. A heavily conjugated pi-bond system will have smaller energy difference between the highest occupied and lowest unoccupied orbital (energy level, essentially). Some of them are low enough to be in the visible range.

As for shiny vs matte that's a tad bit more complicated, despite involving less QM. I'm not 100%...
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>>7667552
So something like biphenyl won't have much of a color because it has many pi bonds, but a diatomic molecule pair of hydrogen or chlorine will?

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sci, i do not understand what's going on there

$$\frac{x+\sqrt{x^{2}-1}}{x}$=$1+\sqrt{1-\frac{1}{x^{2}}}$$

how does the simplification work here?
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>>7667495
[eqn]$\frac{x+\sqrt{x^{2}-1}}{x}$ [/eqn]
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>>7667499
$$\frac{x+\sqrt{x^{2}-1}}{x}$$
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>>7667501
$$\frac{x+\sqrt{x^{2}-1}}{x}$$

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Will solar energy ever be not shit?
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Yeah
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Probably.
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>>7667471
Depending on what you're trying to do, it's pretty non-shit now.

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