/sci/ - Science & Math

[Anonymous No.4813712]

if the universe is 3 dimensional, how come the planets in our solar system are moving in a 2 dimensional way?

[Anonymous No.4813724]

They aren't

[Anonymous No.4813728]

>>4813724
is it just drawn that way on like all pictures you find to make it easier?

[Anonymous No.4813725]

ITT: no one knows

[Anonymous No.4813727]

>>4813712
They're not. Its usually represented in a 2d way because its easier to understand it that way

[Anonymous No.4813733]

the universe is 4 dimensional, or 11 dimensional, not just 3

[Anonymous No.4813735]

>>4813712

http://en.wikipedia.org/wiki/Orbital_inclination

[Anonymous No.4813730]

>>4813727
ok thanks

[Anonymous No.4813743]

They are moving approximatly in the same plane, because they have evolved from spinning disk of dust.

[Anonymous No.4813750]

There are 11 dimensions. One of which is time.

[Anonymous No.4813754]

>>4813727
You're an idiot.

What happens when you rotate? Coriolis effect. Net angular momentum. Accretion stretches the orbiting particles/gas out into a disk as they contract gravitationally.

Very simple physics.

[Anonymous No.4813756]

>>4813743
>>4813743
how come everyone is neglecting this?

[Anonymous No.4813764]

>>4813733
>>4813750
we're only talking about the 3 visible dimensions x,y,z,
sorry for not writing that in the OP

[Anonymous No.4813767]

conservation of angular momentum

[None !IbCrowPiV2 No.4813784]

Angular momentum

[Anonymous No.4814218]

Galaxies and solar systems form into disk-like shapes because that is energetically favorable for them to do so. Gravity combined with viscous forces cause nebula (early solar systems) to coalesce into an accretion disc. Angular momentum prevents it from collapsing to the center of rotation. The answer isn't as simple as you think. It requires a bit of fluid dynamics.

http://en.wikipedia.org/wiki/Accretion_disc

http://www.vlti.org/events/assets/2/proceedings/porto-02.pdf

[Anonymous No.4814223]

>>4813754
yeah, op, you're a retard. never forget to take the coriolis effect into account

[Anonymous No.4814408]

>>4814218
why is there any rotationt to begin with?

[Anonymous No.4814416]

How are there 11 dimensions?
They only one I know relates to time.

[Anonymous No.4814437]

/facepalm

anto to really rustle your jimmies, they are moving in four dimensions
>time

[Anonymous No.4814444]

>>4814437
>>4814437
actually no fuck me I'm wrong

they are moving in atleast 5

as time (4th dimension) moves, you are also expanding relative to spacetime, therefore are moving in not only the 3 directional dimensions + the 4th ime dimension, but also a 5th dimension.

[Anonymous No.4814447]

>>4814437

They are moving in 3 spacial dimensions. They are also moving through 4 dimensional spacetime.

You don't move in time you move through time.

[Anonymous No.4814450]

>>4814408

This is a question almost nobody in an everyday setting thinks to ask, and it has such an awesome answer:

It is the leftover momentum of countless specks of dust as they came together to form a huge cloud (thousands of AU in diameter) around our star. Individually, each dust speck had its own random, almost insignificant momentum, and almost all of these canceled out with some other dust speck with an opposite momentum. But even with such a great sample size, there was some deviation, and this tiny deviation resulted in an absolutely miniscule net rotation in one direction. But as the cloud continued to gather together, the momentum was conserved, and so to speed of rotation increased. The more it shrank, the faster it rotated, until it was a planetary disk, sharing some qualities of the rings of Saturn, but larger than our solar system.

Space is fucking awesome.

[Anonymous No.4814452]

>>4814444

[Anonymous No.4814463]

>>4814447
>You don't move in time you move through time.

>in
>through

yeah pretending you're smart by derping about lexical errors doesn't look not make you smart.

[Anonymous No.4814469]

>>4814452
in the same concept of the condensed dimensions expanding or changing the ''density'' of the fabric of spacetime, the sheet of spacetime is continually getting more dense, giving the effect of ''expansion''

however, since this growth is constant across the universe, t is not contained in the 3 dimensions, but is expanding as a whole in the 5th

hubble's constant. look it up.

[Anonymous No.4814493]

>>4814444
>you are also expanding relative to spacetime
That dosen't mean anything.

[Anonymous No.4814499]

>>4814469
That is not how Hubble's constant works.

>condensed dimensions
This is completely meaningless.