Archived threads in /sci/ - Science & Math - 1020. page

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>http://physics.stackexchange.com/questions/75619/are-black-holes-really-singularities

has a good explanation. Basically, black holes aren't singularities throughout, but they have a singularity at the center.

>>8574444
Singularities are infinitely dense, not infinitely massive

>>8574542
your infinitely dense

>>8574085
Leave everything to the end.

>>8574085
Shitpost on 4chan until it's too lat

Do a lot of practice problems

>>8573111
It's because of all the strogen jews put in the water supply.

>>8573116
partially this
there is estrogen in plenty other things
the fact that males are encouraged to be nu-male cuckolds does not help natty T-production either

>>8573126
How do we(MEN) get rid of estrogen?

>>8571398
in the year 2000 I paid $100 for a TI-83 plus. In walmart yesterday I noticed they still sell the same TI-83 plus for $100. I still use mine all the time.

>>8571402
holds it's value like gold.

>>8571398
>TI
>graphing calculator

Fuck no. Just get a <$20 scientific like Casio FX-991EX or FX-115ES Plus.

a singularity is not nothing, what happend before it we have no idea

Time is cyclical.

The big bang that begins the universe is also the big crunch that ends the universe.

>>8568782
>there was nothing
That makes no sense.

>education is about what is most profitable to learn

>>8568555
True; however, money is still a strong indicator of how importance a field is.

>>8568555
Butthurt mathfags justify their uselessness by resorting to "education is not about making money" strawman

I finally stole someone's black leather gloves. I always wanted to put stranger's gloves over my mouth and pretend that I'm getting kidnapped by some stranger... Turns me on very much

>>8579722
In supergravity, the gauge field for graviton is the vielbien (the "square root" of the metric tensor). The field for the gravitino is then a spinor field with a # of propagating fermionic degrees of freedom to match the # of propagating bosonic degrees of freedom of the graviton. The fields are related via local supersymmetry transformations.

>>8579779
I don't know what that means. Can you dumb it down for me?

>>8579548
Evolution didn't really prepare us to memorize dry facts, numbers and whatever. Our memories are not made to store that kind of information. Our memories are meant to store only relevant stuff on very high abstraction levels. And those relevant things are not things we read, but things we actually experience and what we felt at the time (basically, data and labels). Our brains are basically constantly trying to figure out what the best decisions are in any situations and our memories are some kind of buffer for data collection. We usually only store shit that's either obviously relevant (the face of your angry mother shouting at you, some guy pointing a gun at you on the street), or things that deviate from the usual state, even if more or less unrelated to the experience (The slightly unusual way your gf parked her car before she broke up with you, that weird smell in the air when your brother told you he's going to marry his wife) etc. Those things are then used by the brain to figure shit out, sometimes we know, sometimes we don't, which is sometimes referred to as intuition.

Associating bare information with a story basically tricks our memories into fitting the information into a framework that's more suitable for us. If we do that, the brain's capacities are enormous.

>>8579597
Not OP, but this is actually an incredibly insightful and intuitive post, well done, anon, well done.

>>8579597
OP here thanks so much that was extremely helpful

Professor Leonard

books son

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>>8579525
I figured that as well. I'm currently reading Mathematics by Experiment

>>8579204
We measured it over and over in all kinds of places and it was the same. We don't know of course. But it's pretty likely.

Consider the consequences if it were not constant.

The speed of light you posted is a defined value. We literally say it is equal to that value. Then we define all other units in terms of c.

It's kinda weird and recursive, but it makes sense and helps us get rid of physical dependence on measurements. For example, the kilogramme used to be based on a physical mass. The problem is that this isn't stable enough.

>>8579126
if I knew that gene, I'd be rich

>>8579152
heh read my mind, exactly why i'm even asking,
god i just wish i'd get a vision of how to find it and become a billionaire already

>>8579126
What the fuck is white and brown fat?

I'm just gonna say no because your question sounds dumb.

The second question I believe is Gallium.

>>8578936

huh, i thought it was bromine. Thanks though.

help with the first one? anyone? please?

>>8578942
You can't oxidize bromine, it's an electrophile, it's like trying to oxidize oxygen or something

The gallium loses electrons that's oxidation

>>8578786
By your analogy that would cause a net loss of energy which is the exact opposite of a fission reaction

>>8578838
fission reactions go 235 broken to 238. the heavier flywheel is less energetic, and the energy is released as photons. analogy holds.

>>8578844
Uranium-235 breaks into smaller neclei and a bunch of neutrons, there's no 238

Even if we take your analogy it doesn't make sense with fusion

Mirrors absorb some light. In fact, if you put a mirror in front of another and look at the image created several layers deep, you'll see a green hue. Eventually it dissipates and goes into heating the mirrors. However, mirrors also emit light in the infrared, so yeah, there will still be photons. Poke a hole in the side and you've made a blackbody.

>>8578186
as long as you have a perfect mirror the light will stay stored inside.

Since OP is brainlet, I have a better question. If we put an old-school 100W lightbulb in a box of mirrors 1m cubic, how strong would be the enlightment inside the box after 10 minutes?
You can ignore the light absorbtion of mirrors and lightbulb.

>>8576481
Porn addiction.

>>8576500
Not everyone that watches porn to much has a cuck fetish.

>>8576506

when you watch porn you are literally the cuck.