Large Hadron Collider

[closeratio]

Question: If a black hole is opened, would we actually be aware of being pulled into it, or would be simply be destroyed in the blink of an eye?

I reckon (and this is just me) that because of the massive acceleration involved it's just be like a sudden rollercoaster into the center, and you'd pass out before anythin else happened. I think it's good to go out on a load of adrenaline

Mind you that's probably me bein a bit optimistic. Like qwerty said, the mavity would probably just pull us apart instantly.

 

[Bones]

WHERE ALL GOING TO DIE!!!!!!!!!!!!!!!!

*Subject to terms and conditions

He could have been referring to the earth, where all going to die

 

[pedrochop]

He could have been referring to the earth, where all going to die

doubt it

 

[Ross1234]

I reckon (and this is just me) that because of the massive acceleration involved it's just be like a sudden rollercoaster into the center, and you'd pass out before anythin else happened. I think it's good to go out on a load of adrenaline

Mind you that's probably me bein a bit optimistic. Like qwerty said, the mavity would probably just pull us apart instantly.

I thought time slowed down as you neared a black hole, so you would never experience entering it

 

[Pilky01]

I thought time slowed down as you neared a black hole, so you would never experience entering it

Its a theory, it may not be true.

 

[closeratio]

I thought time slowed down as you neared a black hole, so you would never experience entering it

As I understand it, to the outside observer (who isn't affected as much by the gravitational pull of the black hole) it would yeah. Time still passes at the same rate from your point of view, or I think that's what the book I've read that mentions them says anyway.

Edit: I may be thinking of something different. If it what I wrote sounds like nonsense then it probably is

 

[Tefal]

no explanation required

"if the lhc actually destroys the earth & this page isn't yet updated
please email [email protected] to receive a full refund"

yeah i wanted to know what this part ment

if (!(typeof worldHasEnded == "undefined")) {
document.write("YUP.");

ie, what it actually needs for it to write yup.

 

[Grrrrr]

I mean, if one big enough to sustain it's self was actually opened.

According to the CERN safety report if a stable and uncharged black hole were to be formed (it wont), and if it didn't disintegrate due to hawking radiation (it will) then based on observations of cosmic rays colliding with neutron stars it would take billions and billions of years for a micro black hole to consume the earth

OMG WE'RE GOING TO DIE!

 

[closeratio]

ie, what it actually needs for it to write yup.

I've never done java before but my brief two years of delphi leads me to believe that the only way that worldHasEnded could be assigned as 'undefined' is if the server which assigns that value goes offline, which makes sense.

Mind you if someone unplugged it then things might start to go downhill lol

 

[Radiation]

As I understand it, to the outside observer (who isn't affected as much by the gravitational pull of the black hole) it would yeah. Time still passes at the same rate from your point of view, or I think that's what the book I've read that mentions them says anyway.

Edit: I may be thinking of something different. If it what I wrote sounds like nonsense then it probably is

You're right, time dilation, it's all relative, remember the stargate sg-1 episode with the black hole?

 

[Grrrrr]

I thought time slowed down as you neared a black hole, so you would never experience entering it

Time slows down as you get closer to a strong gravitational field which of course astronomical black holes do have. Microscopic black holes will have barely any mass at all (and thus have a weak gravitational field) and thus barely effect time at all

 

[Tefal]

I've never done java before but my brief two years of delphi leads me to believe that the only way that worldHasEnded could be assigned as 'undefined' is if the server which assigns that value goes offline, which makes sense.

Mind you if someone unplugged it then things might start to go downhill lol

Thank you




Although considering how long it would take one of these things to destroy the world, we could stick it on a missile while it only weighs a few micro grams (well actually a lot less than that but meh) and fire it out of the solar system.

 

[Zogger]

I've never done java before but my brief two years of delphi leads me to believe that the only way that worldHasEnded could be assigned as 'undefined' is if the server which assigns that value goes offline, which makes sense.

Mind you if someone unplugged it then things might start to go downhill lol

it actually prints nope if it's undefined . This is javascript so it's executed in the user's browser and doesn't need the server at-all anyway.

Basically it's saying if the variable worldHasEnded is of an undefined type (as opposed to a number or a string etc.), the world hasn't ended, otherwise the world has ended. Since there is no worldHasEnded variable defined anywhere in the script then you won't see ever see Yup

 

[dafloppyone]

basically, a particle-antiparticle pair are created at (actually just outside) the event horizon (the bit nothing can escape from). The antimatter particle goes into the black hole, the matter particle moves away from it (this is the "radiation" part). Black hole of the size which could be created in CERN (and it's unlikely that any will be created) would be so small, and have such little mass to begin with, that they would simply "evaporate." There would be an implosion, but with the quantities of mass involved it would barely be noticed, even by the detectors at CERN.

You're spot on about the misconception, the general belief is that a black hole will swallow everything around it, and keep going until there's nothing left. If this was the case, a single black hole anywhere in the universe at any time in history would have swallowed the whole universe by now, and we wouldn't be having this discussion. If you believe black holes exist anywhere in the universe, then you should also believe that the misconception is incorrect.

 

[Biohazard]

And this one from Brian cox

http://www.youtube.com/watch?v=_6uKZWnJLCM

He said 300 millions years after big bang, the universe was big enough to become transparent and light started to travel across it.

Yet he said it wasn't until 100 million years (400 million after BB) after then that the first stars were born.

Where does light come from if not from stars? noob question?

 

[Inquisitor]

As you approach a singularity, it's thought that the dimensions distort and actually swap over. Space becomes time, up becomes yesterday and where becomes were.

Just saying.

This can also happen when large pyramids are destroyed; each dimension rotates through 90º, eaning that instead of moving forward through time, you move slowly but steadily to the left, while it's possible to get younger just by running backwards.

 

[Tefal]

He said 300 millions years after big bang, the universe was big enough to become transparent and light started to travel across it.

Yet he said it wasn't until 100 million years (400 million after BB) after then that the first stars were born.

Where does light come from if not from stars? noob question?

From smaller reactions, you still have plenty of crap floating wound to hit each other/react/radiation interacting with objects.


Obviously it wouldn't be very bright.

 

[closeratio]

it actually prints nope if it's undefined . This is javascript so it's executed in the user's browser and doesn't need the server at-all anyway.

Shows how much I know about javascript then

 

[Biohazard]

From smaller reactions, you still have plenty of crap floating wound to hit each other/react/radiation interacting with objects.


Obviously it wouldn't be very bright.

Glow would be more appropriate than light then?

 

[yak.h'cir]

As I understand it, to the outside observer (who isn't affected as much by the gravitational pull of the black hole) it would yeah. Time still passes at the same rate from your point of view, or I think that's what the book I've read that mentions them says anyway.

Edit: I may be thinking of something different. If it what I wrote sounds like nonsense then it probably is

Yup that's my understanding of what the current theories say will happen as well.

For anyone actually entering the black hole they'll fall into it pretty quickly and time will flow for them as expected. However if they were to look out at something far away from the black hole it would appear that time there was running very fast. For someone far away watching this person fall into the black hole they would observe the persons time running slower and slower, until stopping altogether at the event horizon where they would appear to be frozen in time. It would in theory appear as though they never entered the black hole. Of course this ignores all the lovely effects like spaghettification!