Large Hardon Collider

[Lhyet]

Miz, your daughter knowing much of the periodic table is awesome~

I have a little question regarding time dilation which I know is a hot topic after the crap that Max was spouting, but it goes completely over my head.

On my FFXIV linkshell forum we have a space thread and someone asked if there's much time dilation between the galactic core and the outer star systems, he assumes that there could be millions of years thanks to how long the galaxy has been spinning.

As I say, I know nothing about time dilation but am I right in thinking that it doesnt work like that? We're not 'ahead' in time because it's all relative. Besides, systems don't move anywhere close enough to the speed of light to be affected much by time dilation.

What's the deal?

[Kaylia]

Our galaxy rotates fast, but nowhere near the speed of light (ie: the sun rotate at 220 000 m/s, ). If we want to include a relativistic correction, it would be on 7th digit or something. It's there, but not significant.

With that said, the diameter of our galaxy is 100 000 light year. That's probably where he got this idea and why you believe we are "ahead", because that's quite a large distance.

[Lhyet]

I suppose you'd only experience time dilation if you were moving towards the galactic core from Earth and a high enough speed? Neither points are either 'forward' or 'back' in time compared to each other and it's only when you travel between them that you experience the dilation.

Is that about right?

[Chun Liroy]

Our galaxy rotates fast, but nowhere near the speed of light (ie: the sun rotate at 220 000 m/s, ). If we want to include a relativistic correction, it would be on 7th digit or something. It's there, but not significant.

With that said, the diameter of our galaxy is 100 000 light year. That's probably where he got this idea and why you believe we are "ahead", because that's quite a large distance.

Alright this may be completely off base, but theoretically (I'm sure it wouldn't exist if this were to happen but bear it with me), if the sun was rotating slower, for example, 0, would that shorten its "life span" by an incredible amount, and increase the rate at which reactions are performed?

Edit: I literally just woke up like 30 seconds ago, this probably doesn't make any sense at all.

[Kaylia]

I suppose you'd only experience time dilation if you were moving towards the galactic core from Earth and a high enough speed? Neither points are either 'forward' or 'back' in time compared to each other and it's only when you travel between them that you experience the dilation.

Is that about right?

Relativity for rotating systems is a bit more complex since it's always accelerating toward a different direction, and because of that, we can't use the concept of frame of reference and lorentz transform as easily


Essentially, anything that move in different direction at different speed is going to experience time dilation/space contraction toward each other without exception. It's important to mention that both will experience the same dilation/contraction (both see a shrinked/slower version of each other). Time and space are only going to synchronize when one start accelerate/decelerate.

[Kaylia]

Alright this may be completely off base, but theoretically (I'm sure it wouldn't exist if this were to happen but bear it with me), if the sun was rotating slower, for example, 0, would that shorten its "life span" by an incredible amount, and increase the rate at which reactions are performed?

Edit: I literally just woke up like 30 seconds ago, this probably doesn't make any sense at all.

When particles move really fast in particles accelerator, they decay slower. Same thing should applies here if we were in an ideal situation (except by an incredibly small amount since the star isnt spinning very fast in the first place).

However, chance is that fast rotation slow down the fusion because it counter the gravitational force slightly, and the star would end up burning its fuel faster if there was none..

[Mizango]

Miz, your daughter knowing much of the periodic table is awesome~

Thanks bro, I appreciate it. Yeah shes something else for only being 10.

[Chun Liroy]

Ah, alright thanks.

[Eliseos]

Searching for jobs when the search function on the website isn't returning good results (computer engineer leads to mechanical engineering) turns me off from even trying. So is "No longer under consideration" from 3/8 of the jerbs I've applied to at Boeing. Shitsux bro.

Edit: Does anyone have a good site for engineering type jobs? I've mostly just been going to various company websites.

[Khamsin]

Searching for jobs when the search function on the website isn't returning good results (computer engineer leads to mechanical engineering) turns me off from even trying. So is "No longer under consideration" from 3/8 of the jerbs I've applied to at Boeing. Shitsux bro.

Edit: Does anyone have a good site for engineering type jobs? I've mostly just been going to various company websites.

For civil/mechanical/geotechnical/structural/aerospace/industrial/etc type engineering, I know of some. But not for computer/software type engineering.

[Eliseos]

That seems to be the trend I'm seeing as well. Even with the company websites I've been using, most have only non-computer engineering type positions.

[Restrat]

there are a lot of computer engineering jobs on usajobs, have you checked those out? If you do computer security type stuff at all you are pretty much guaranteed a job

[Plow]

Question I think Miz will like:

What would most likely have happened if Jupiter had gained enough mass during its formation to become a star? Would we expect it and the sun to begin orbiting each other? Or possibly just Jupiter orbits the sun so we have 7 planets and an extra sun?

Or would it just completely fuck everything up and go off on its own?

[Eliseos]

there are a lot of computer engineering jobs on usajobs, have you checked those out? If you do computer security type stuff at all you are pretty much guaranteed a job

Yeah that's one of the few sites that have a bunch available. I've applied to about 5 or so on there, I'll probably look at more as well.

Edit: The one thing I don't like about USAJobs is how hard it is to figure out if it's a position I should or should not be applying to (ie experience level). Plus I have no idea what grades are, sometimes it seems a lower number is more experienced, other times higher numbers seem like more experience.

Question I think Miz will like:

What would most likely have happened if Jupiter had gained enough mass during its formation to become a star? Would we expect it and the sun to begin orbiting each other? Or possibly just Jupiter orbits the sun so we have 7 planets and an extra sun?

Or would it just completely fuck everything up and go off on its own?

Might be wrong but I think if Jupiter had that much mass, it would have just combined with the sun to form an even bigger star.

[Mizango]

Question I think Miz will like:

What would most likely have happened if Jupiter had gained enough mass during its formation to become a star? Would we expect it and the sun to begin orbiting each other? Or possibly just Jupiter orbits the sun so we have 7 planets and an extra sun?

Or would it just completely fuck everything up and go off on its own?

Well it depends, hypothetically in Jupiter's birth, had it gathered enough sustained mass and density to kick start the fusion process in the beginning, then yes it could hypothetically have become a star like our sun. At its current .001 solar masses Jupiter has a extremely long way to go to even get remotely close to fusion. It would need something on the range of about 80x larger than current size (HUEG LIKE [Insert something huge].. Inb4 penis jokes) and have constant pressure and a hot enough center to fuse light > heavy elements.

We see just from studying exo-planets that there are binary star systems (Sirius, the "Dog Star is one) out there, so yes that is possible as well. Since our Sun is larger, in our hypothetical scenario, then it would be the primary star and the "Sol-Jupiter" would be the companion star. The only difference is both the primary and companion would orbit each in the field of their common center of mass. The planets that we observe presently, orbit both sols in normal planetary orbits, varying much like our own. So yes, its certainly possible to have 2 stars in the same immediate area. But as far as your planets orbiting each one independently, they wouldn't because that common center of mass could catapult each respective planet into one another, creating chaos on a grand scale but would generate a much needed debris field that is ripe for accretion.

That could explain how you could get moon and satellite formation and have some sort of an asteroid belt in your hypothetical binary solar system though.

[Chun Liroy]

I'm about to watch the other 2 videos of Wonders of the Universe, millions of questions incoming.

[Kaylia]

Question I think Miz will like:

What would most likely have happened if Jupiter had gained enough mass during its formation to become a star? Would we expect it and the sun to begin orbiting each other? Or possibly just Jupiter orbits the sun so we have 7 planets and an extra sun?

Or would it just completely fuck everything up and go off on its own?

The Sun orbits the Earth as much as the Earth orbits the sun. All that matter for gravity is mass, and since this new star wouldn't be very big compared to the sun, it wouldn't change much with the current system (gravity center of the solar system would shift a little toward the planet, but not that much.

They recently found a brown dwarf recently that is 15 times the size of jupiter and is borderline between star and planets.
http://skymania.com/wp/2008/04/brown...tar-known.html

[Lhyet]

http://i1134.photobucket.com/albums/...shots/Nasa.jpg

[Chun Liroy]

lol q.q

[Eliseos]

The first order of business once inter-stellar spaceships are being built should be to destroy Pluto.