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Archived threads in /sci/ - Science & Math - 384. page
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How can one man be so based?

>tfw he will be putting all of us on Mars
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Hopefully after he can land a rocket properly
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>>7811918

pretty sure he'll get his wish of dying on Mars though
>>
>>7811918
Dumb fuck

https://www.youtube.com/watch?v=O5bTbVbe4e4

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How about they name planet x athena to show how dark the heart of woman is?
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>>7811686
>how dark the heart of woman

?????
>>
>>7811686
T I P S
I
P
S

F E D O R A
E
D
O
R
A
>>
I hope they pick a name that makes tinfoil hatters mad.

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what's it like holding a PhD? what kind of hardships do you go through for a postdoc? is it just "research these areas of mathematics and see if you come up with something." or "if you don't find something by the end of this term i'm going to kick you to the curb."? i always hear about people being pressured, but i'm confused. don't you usually go into a postdoc already having a thesis or some papers in an area? or is that uncommon? what's the frequency for publishing theses on average for you guys?
18 replies and 4 images submitted. Click here to view.
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nobody who has a phd, or atleast a successful one, is here

so the response you will get biased towards losers and retards
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>>7811661
be that as it may, i'm hoping someone would at least have some insight due to unbiased research at their respective institutions.
>>
You go into a phd if either you love masochism, are misguided, are golden boy with a fat stipend from some organization, or you are a foreigner.

No other reason.

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Can anyone solve this?
Topic: Riemann Integration
6 replies and 1 images submitted. Click here to view.
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>>7811655
You can't find the surface of a rectangle?
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>>7811664
More like i can't reach the summation equation to proof the equation
>>
Dx is n. That should get you started. As noted approaches inf

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Anyone who talks about cold fusion gets perma banned by academia. Can /sci/ please explain this to me? Pic related is bubble fusion utilizing the phenomenon of sonoluminesense in water with high frequency waves. Temperatures can reach >20,000K or 4 times that of the Sun!
8 replies and 3 images submitted. Click here to view.
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>>7811629
>20,000K or 4 times that of the Sun!
20,000K or 4 times that of the SURFACE of the Sun! The core of the Sun is 15 million K, where the actual fusion happens. No idea how that works for or against cold fusion. Just felt the need to point that out. Isn't cold fusion supposed to work at room temperature? In that case, I fail the see why you compared the temperature to the surface of the Sun, as a some sort of argument for cold fusion. They're wholly different approaches to fusion.
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>>7811635
its all theory m8

the temperature of the sun's INTERIOR has never really been measured experimentally

http://astronomy.stackexchange.com/questions/253/how-was-the-core-temperature-of-the-sun-estimated
>>
>>7811629
>Anyone who talks about cold fusion gets perma banned by academia

They don't. Its just not a very popular since one really understands how it could work, although there are a few groups still working on it. Really it became tainted after and experiment in the 80s by pons and Fleischmann, basically of was a clusterfuck. After that research into 'cold fusion' effectively stopped.

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Ok so lets be honest
what are the chances of this actually working?

http://www.independent.co.uk/news/science/head-transplant-has-been-successfully-done-on-a-monkey-maverick-neurosurgeon-sergio-canavero-claims-a6822361.html
18 replies and 3 images submitted. Click here to view.
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Exactly the same as the EM drive.

It's an extraordinary coincidence, so the infinitesimal variables have actually been used in conjunction with one another to calculate near light speed equations.
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>>7811591
Head transplantation is entirely possible provided you can prevent immunorejection and reconnect severed nerves.

As for this claim specifically, wait former the people involved to publish something before jumping to any conclusions.
>>
>>7811591
>Finally get a white body
>Still have nigger head

GOD FUCKING DAMMIT

I think /pol/ is still praying to a frog god btw.

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Is cryptology the most autistic division of math? I mean how can someone crack a simple message like "XY12076RDLNAKQT34262118MCGZOVFSUHE21814514JWPBI" without tapping into the powers of pure distilled autism and not give up after 2 minutes.
13 replies and 2 images submitted. Click here to view.
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>>7811448
Git gud, pleb faggot.
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It's not like they're actually "translating" it in their heads or anything
>>
Also it's not what cryptologists do

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How do you describe a joule?
The energy that applies one Newton of force to a mass over one meter of distance?
And how do multiplying volts and amps equal Newton meters per second?

Units man not even once
8 replies and 1 images submitted. Click here to view.
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>>7811409
Volts are defined as J/C
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>>7811409
What the fuck is happening in that pic?
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>>7811754
winter is le coming xDD

Alright /sci/ I've been looking at RITEG tech for a while now and I've been wondering this. Besides the half life of under 3 years is there any other reason Fe-55 shouldn't be used?
4 replies and 1 images submitted. Click here to view.
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>>7811402
well, as long as you aren't trying to put it inside your damn car or using it to power your microwave.
>>
half life 3 confirmed
>>
>>7811402
It's a weak gamma (xray) emitter. Xrays don't heat things very well - that's why most RTGs use alpha or beta emitters.

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Somebody explain this shit

Specifically the bit at the end

https://youtu.be/BBp0bEczCNg
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>>7811394

That you can have an infinitesimal small number? What don't you comprehend?
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>>7811394
I was typing an explanation and accidentally hit previous page and lost everything, fuck this.
Just read this article:
https://en.wikipedia.org/wiki/Surreal_number

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Greetings /phil/.

On the topic of driverless cars, a debate emerged regarding a car which would, in an unavoidable one set of people die or another set of people die scenario, will opt for the least net loss in human life, including the possibility of killing the cars occupant.
One side argues that the car would be a huge success as, other than in finitely many scenarios, the car would be less likely to be involved in accidents involving human injury.
The other side posits that the car would not sell well at all as the existence of a pre-programmed scenario in which...
Comment too long. Click here to view the full text.
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>>7811109
It depends on what the car is programmed to do. Keep in mind that it is extremely hard for a robot to recognize people in the first place.

There is no /phil/ board and religion is a mental illness
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>>7811120
The specific instance was "you're in the car alone when two people walk into the road. Without adequate stopping distance and being unable to maneuver out of the path of the pedestrians without killing the driver, the car chooses to ram itself into a wall, killing the driver, to ensure the least net loss of human life."

Basically, high school level "deep" philosophy. I'm ashamed to be part of the debate at this point but I'll be damned if I'm backing down now.
>>
>>7811109
Since it is really hard for a robot vehicle to differentiate people from say a concrete wall, a bunch of realistic statues, or debris that has fallen on the road, the vehicle should take a course of action which will minimize damage to itself and it's occupant.

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Does anyone know what the best book for an intro to quantum gravity is?
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>>7811026
Uranus
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>>7811100
That is a planet. Not a book on QG.
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black holes dont exist

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Think of the tourism bucks!

Don't you want to be the first person to fuck a hot chick on the moon?
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Won't it be easier to get to mars if we build a base on the moon first?
>>
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>>7810674
>Don't you want to be the first person to fuck a hot chick on the moon?
>tfw no qt gf to make love with on the moon.

Feels really bad man.
>>
MOON OLYMPICS

think about it

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Is this movie /sci/entifically accurate?
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Please respond.
>>
No.
>>
it's based on some theory of mind, though

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What's the difference between:

1) A sphere.

2) A circle rotating along a diameter in a three dimensional space at an infinite speed.

???
23 replies and 1 images submitted. Click here to view.
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>>7810080
rotational momentum
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>>7810080
>infinite speed
No such thing and not in terms of "that can't be" (we're talking about a 2d shape taking up 3d volume by rotation, being impossible in a real world sense isn't a factor) but because it doesn't make sense. Infinite isn't a quantity.

At an arbitrarily large speed?

One is a solid body and the other is a rotating 2D shape.

As for what differences this makes, think in terms of stuff like density and mass.
>>
>>7810080
The difference is that one would be perfectly safe to touch, while the other would make your finger permanently invisible.

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