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/sci/ - Science & Math

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6442775 No.6442775 [Reply] [Original]

Science facts thread

>> No.6444082

You will never have a girlfriend.

>> No.6444088

That seems really low compared to the atoms in the universe...

Is the rate like exponentially growing or something?

>> No.6444095

>>6442775
Wrong it's spelled the large hardon collider

>> No.6444104
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6444104

>> No.6444108

>exactly 25060
>so many that we have lost count

I already lost it there.

I love when these pictures are well made. So much fun with Michio Naruto and SmokeDeGrass Tyson.

>> No.6444115
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6444115

>> No.6444118

>>6444115
this is true but it's not "could", you most certainly are breathing the same atoms as jesus

>> No.6444124

>>6444118
I hope you can understand that while two atoms of oxygen are identical they are not the same entity

>> No.6444129
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6444129

>> No.6444130

>>6444124
HOW DO YOU KNOW? YOU WEREN'T THERE!

>> No.6444137

>>6444088
>>6444095

The boat left and you weren't on the boat. Sorry.

>> No.6444139

>>6444130
Oh yes you're right my bad, i had a momentary lapse of reason

>> No.6444142

>>6444137
>large hardon collider
>large hardon
>hardon

>> No.6444147
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6444147

>> No.6444152
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6444152

>> No.6444157

>>6444124
i don't think you realize how many molecules there are in a breathful of air

>> No.6444172
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6444172

>> No.6444181

>>6444157
I don't think you realize how many molecules there are in the atmosphere

>> No.6444184
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6444184

>> No.6444195

>>6444181
I don't molecules you air think are

>> No.6444220
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6444220

>> No.6444230
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>> No.6444240

>>6444181
about 1*10^44 molecules in the atmosphere
1.857 * 10^23 molecules in 7 liters of air (about the size of your lungs) which is about equivalent to what you breathe in a minute

assume jesus breathed at least 15 years at this rate (babies don't breathe that much and he died young), divide and calculate how many molecules there are in a breathful of air (0.5 liters or so) assuming that the air has been evenly spread across the globe (it has been about 2000 years)

you come up with 193596000 molecules of jesus air with every breath you take

>> No.6444251

>>6444240
>calculate how many molecules there are in a breathful of air
>you come up with 193596000 molecules of jesus air with every breath you take

>implying you never breathe the same molecule twice
>implying the molecules jesus breathed aren't now 10km above your head or on the other side of the earth or dissolved in the ocean

>> No.6444257

>>6444251
still that's a shitton of molecules

it's completely feasible that everyone's breathing at least some jesus air

>> No.6444268

>>6444257
No but did you read what I said. You breathe many molecules many more than twice. Then how did you ever come up with that 193596000 figure. 1.857*10^23*1440*365.25*15 = 1.465*10^30 , which is 0.0000000000001465% of the whole atmosphere, and which is a very high estimate since like I said you breathe many molecules many times. Then many molecules jesus breathed can be too high or too far or too inside the oceans for you to breathe

>> No.6444289
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6444289

>> No.6444303

>>6444268
1.326*10^22 (molecules in 0.5 liters of air) * 0.0000000000001465% = 19 425 900

looks like we got a bit different answers there, i think you might have added a % for no reason or something

none the less even 19 425 900 is a shit ton of molecules, and it doesn't matter even you mostly breathe the same molecules and even if like 99% of the air has gone inside the oceans or the higher atmosphere, at least some molecules will get through

the most shady thing about my assumptions was the even spreading across the globe i think, at least argue against that

>> No.6444400

>>6444303
Right I put one zero too many.

Consider that every breath you take you breathe half the molecules that you breathed last breath (i'm pulling that number out of my ass but that sounds like a reasonable enough estimate).

Using molar mass of air = 28.97 g/mol, density of air = 1.225 g/L, that makes 0.042285 mol/L so 2.5464*10^22 molecules per litre. Assuming 0.5 litre per breath, that makes 1.273*10^22 molecules per breath.

So first breath you're breathing 1.273*10^22 molecules. Second breath, you're breathing half new molecules and half old molecules, that is 6.71*10^21 new molecules. Third breath, you're gonna breathe molecules from the second and from the first breath, so that number is going to be lower. Let's say half again, that makes now 3.36*10^21 new molecules on third breath.

Keep going like that, at the nth breath you are breathing (1.273*10^22)/(2^n) new molecules. So after the nth breath you have breathed :

sum from k=0 to n of (1.273*10^22)/(2^k).

The series 2^-k converges to the value 2, so that sum after 15 years would be about 2.546*10^22 molecules, which is much much less than the 1.465*10^30 initially estimated.

Now I agree 2.546*10^22 is probably too low an estimate, since every breath the number of new molecules breathed is not gonna be divided by two, but still, the real value would be far far lower than 1.465*10^30, maybe 10^24.

If you use 10^24, then1.273*10^22*(10^24/10^44) = 127, the number of molecules jesus has breathed you would be breathing every breath. But assuming as you said 99% of molecules jesus has breathed has gone in the oceans or the higher atmosphere, then you're left with a mere one molecule per breath. Assuming further the air has not spread evenly across the globe, it is likely that every breath you are not breathing a molecule jesus breathed. But still it is indeed likely that over your life you will breathe many molecules that jesus has breathed. That son of a bitch did breathe a lot of molecules

>> No.6444429

>>6444400
Actually it could be that 99.9999999% of the molecules that were at sea level 2000 years ago are now higher in the atmosphere or in the ocean, in which case it would be quite rare to breathe jesus' molecules. Feels like working with drake's equation, depending on the values we pick for the various parameters we end up with widely different results. We should coin a term for that one, the jesus equation, with the parameters :

Nj : number of molecules jesus has breathed
No : fraction of the molecules jesus has breathed that haven't been dissolved in the oceans
Nh : fraction of the molecules jesus has breathed that haven't gone into the upper atmosphere
Ng : fraction of the remaining molecules that are susceptible to come due to atmospheric winds close to the ground

Then the number of molecules jesus has breathed we breathe every breath is :

1.273*10^22 * No * Nh * Ng * Nj * 10^-44

>> No.6444434

>>6444429
Forgot one parameter : among the molecules that are susceptible to come close to the ground, what fraction is actually close to the ground at any given moment. Let's call that fraction Nc, that depends on where you are on the globe. Then the jesus equation can be written :

N = 1.273*10^22 * No * Nh * Ng * Nc * Nj * 10^-44

where N is the number of jesus' molecules you breathe in a given breath

>> No.6444449 [DELETED] 

the fastest animal on land is sanic :^)

>> No.6444458

>>6444444

>> No.6444560
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>> No.6444565

You're going to die and none of this trivia will ever matter in your life.

Also, Thermodynamics prevents futuretech. 400 years until we boil the oceans at an energy increase of just 3% per year regardless of tech. Steady state economy is the only choice, but people don't recognize that science fiction is not based in reality so things like space elevators and warp drive are not actually possible.

>> No.6444567

>>6444565
>You're going to die and nothing will ever matter in your life
ftfy

>> No.6444568

>>6444142
That was the joke

>> No.6444569

>>6442775
>>6444230
These are fucking great

>> No.6444570

>>6444568
Which >>6444137 didn't get

>> No.6444572

>>6444257
It's not feasible if jesus never existed

>> No.6444578

>>6444565

Hey could you elaborate on

>400 years until we boil the oceans at an energy increase of just 3% per year regardless of tech.

This is of interest to me.

>> No.6444576
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6444576

>> No.6444580
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6444580

>> No.6444588

>>6442775
missed the chance to call it the large Hardon collider
0/10

>> No.6444589

>>6444578

the Earth has only one mechanism for releasing heat to space, and that’s via (infrared) radiation. We understand the phenomenon perfectly well, and can predict the surface temperature of the planet as a function of how much energy the human race produces. The upshot is that at a 2.3% growth rate (conveniently chosen to represent a 10× increase every century), we would reach boiling temperature in about 400 years.

And this statement is independent of technology. Even if we don’t have a name for the energy source yet, as long as it obeys thermodynamics, we cook ourselves with perpetual energy increase.

At that 2.3% growth rate, we would be using energy at a rate corresponding to the total solar input striking Earth in a little over 400 years. We would consume something comparable to the entire sun in 1400 years from now. By 2500 years, we would use energy at the rate of the entire Milky Way galaxy—100 billion stars! I think you can see the absurdity of continued energy growth. 2500 years is not that long, from a historical perspective. We know what we were doing 2500 years ago. I think I know what we’re not going to be doing 2500 years hence.

So I’m as convinced as I need to be that growth in raw energy use is a limited proposition—that we must one day at the very least stabilize to a roughly constant yearly expenditure. Space is no answer to our problems, merely a childish yearning to escape from them.

>> No.6444601
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6444601

>> No.6444614

>>6444115
Jesus never existed, so this quote isn't that funny.

>> No.6444616

>>6444129
I chuckled at this one, and then I reached for the upvote button, but it wasn't there because this is 4chan. I was kinda disappointed.

>> No.6444617

>>6444589

I came to the conclusion that the growth required to sustain western capitalism was unachievable from an economic perspective, it's just interesting to see it mirrored in principles of energy conservation though I shouldn't really be surprised. I think that population decline is going to be an inevitability, managed or otherwise, so I wouldn't worry too much about increased energy consumption.

>> No.6444619

>>6444614
>Jesus never existed
That's the point

>> No.6444638

>>6444617

Thermodynamics and economics regulate very similar systems.

and yeah, shit's going to be bad. Even if we do switch over to biodiesel, the added costs are going to destroy the world.

>> No.6444643
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6444643

>> No.6444645
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6444645

>> No.6444651
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6444651

>> No.6444691
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6444691

>> No.6444694
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6444694

>>6442775

>> No.6444898

>>6444694
i lel'ed

>> No.6444933
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6444933

>> No.6444945
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6444945

>> No.6444953
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6444953

>> No.6444967
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6444967

>> No.6444985
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6444985

>> No.6444989
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6444989

>> No.6444995

>>6444967

vikings didnt believe in zeus


continue...

>> No.6445069

>>6444614
>>6444619
Are you guys really going to be that ignorant? Oh wait, this is /sci/.

http://en.wikipedia.org/wiki/Historicity_of_Jesus
>inb4 hurr wikipedia

>> No.6445073
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6445073

>>6444560

I can't stop laughing at this.

>mfw his face

>> No.6445078

>>6444953
i like this one. i know a bunch of engineers too. fuck em

>> No.6445087

>>6444967

Don't know why, but this one got me pretty well.

>> No.6445090

>>6445078
I also hate people who are more likely to get better paying jobs than me. Fuck them.

>> No.6445094

rape me rape me rape me rape me - steven hawking

>> No.6445097

>>6445094
Deal

>> No.6445106
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6445106

>>6445094
Would you a Stephen Hawking?

>> No.6445129
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>> No.6445133
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>> No.6445134
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>> No.6445152
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>> No.6445167
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>> No.6445610
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>> No.6445964

>>6445152
>descart
topkek

>> No.6446128
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6446128

>yfw he actually said it

>> No.6446143

>>6444104
Fuck you black science man, I can do what I want with the universe and my tubes

>> No.6446189

>>6442775
If every atom has particles, obviously there are more particles than atoms on the universe. Does he ment to say that there are more particles in an atom than atom in the universe?

>> No.6446532

>>6446189
both

>> No.6446541

>>6444933
>plsbetrue
no need to be afraid of AI btw

>> No.6446551
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6446551

bumping for science facts, here come templates

1/7

>> No.6446554
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2/7

>> No.6446555
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3/6

>> No.6446558
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4/6

>> No.6446559
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5/6

>> No.6446561
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6/6

>> No.6446668

>>6444118
>Jesus
>existing

>> No.6446692
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6446692

>>6446668
*tips trilby*

>> No.6446715

>>6446692
>implying jesus wasn't based off of other prophets

>> No.6446718

>>6446715
>implying jesus wasn't based
kek

>> No.6446719
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6446719

>>6445152

>> No.6447049
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6447049

>>6446558

>> No.6447081
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>> No.6447104

>>6447049
>According to most sources, the human brain contains around 100 billion neurons

>> No.6447105

>>6444589
I give your bullshit 4/10 for effort

>> No.6447119

>>6446128
>tfw I remember the episode

>> No.6447333

>>6447119
>tfw it's the episode with the crabs

>> No.6447409 [DELETED] 

>>6444616
you disgust me

>> No.6447530

Michio kaku is wrong when he said we stop evolving because I say evolution is based on interaction with substances and object.

>> No.6447870

>>6444933
Oohh, snap!

>> No.6447873

>>6444989
>"The trouble with quotes on the Internet is that you can never know if they are genuine."
>By Abraham Lincoln
>Has a picture of Benjamin Franklin

>> No.6447876

>>6445152
>>6445167

>By Rene Descartes
>Has a picture of Voltaire
>GetItRight.gif

>> No.6447877

>>6445090

I hate undergrads that constantly remind other majors of their potential starting salary, in an effort to remind their passionless selves that they made the right choice. Fuck 'em.

>> No.6447878

>>6447873
>>6447876
I can't tell if you're genuinely confused or trolling.

>> No.6447879

>>6445152
>/pol/.jpg

>> No.6448260
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6448260

>> No.6449784
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6449784

Bump with Feynman.

>> No.6449796

And this is why engineering's better than science.