Search found 567 matches

by Kasuha
Fri Mar 12, 2010 10:29 am
Forum: End Of The World
Topic: The Death Star
Replies: 13
Views: 19519

Re: The Death Star

On a related note, while searching the news for this item, I came across this article http://www.popsci.com/science/article/2009-12/astronomers-spot-most-massive-star-ever-go-supernova Is there any possibility that such an explosion created a vacuum bubble which is on it's way here? I believe no, a...
by Kasuha
Thu Mar 11, 2010 1:47 pm
Forum: End Of The World
Topic: SBU Professor, Puts “Doomsday” Scenarios in Perspective
Replies: 8
Views: 13774

Re: SBU Professor, Puts “Doomsday” Scenarios in Perspective

There is a slight difference between the following two sentences: 1. I wonder whether LHC is going to create magnetic monopoples and whether they may be dangerous. 2. LHC will create a magnetic monopole and it will kill us all! That's my way of distinguishing curious people from panic spreaders. Ano...
by Kasuha
Wed Mar 10, 2010 7:10 pm
Forum: The Accelerator
Topic: Vacuum
Replies: 11
Views: 15671

Re: Vacuum

The dump is just (basically) a block of graphite located in the side branch of beam pipe. When beam is to be dumped it is just kicked by magnets to this pipe branch towards the graphite block. There are no valves and no vacuum windows involved. I'm also not sure about vacuum windows anywhere on LHC ...
by Kasuha
Tue Mar 09, 2010 1:28 pm
Forum: End Of The World
Topic: Review of not considered risks (Energia Incognita)
Replies: 16
Views: 25138

Re: Review of not considered risks (Energia Incognita)

The article does not look scientific to me, rather it is just written in a style to look scientific. Some claims are directly opposite to conclusions of LHC safety report without any discussion with it. The chapter about rotational energy was interesting, I really wonder if a proton can rotate and i...
by Kasuha
Sat Mar 06, 2010 11:54 pm
Forum: Science
Topic: Infinite series in quantum phyics
Replies: 29
Views: 37766

Re: Infinite series in quantum phyics

Errm, if 2^128 is a bigger number than the count of particles in the universe, does it have any meaning? Sure it has. In mathematics it's just a number, numbers are not limited by size of the universe. And in reality, it's (for example) number of all possible values you can store in a 128-bit regis...
by Kasuha
Fri Feb 26, 2010 12:57 pm
Forum: The Accelerator
Topic: Older Events and discussion 3/22/10
Replies: 156
Views: 182927

Re: ** Current Events and discussion **

over = LHC never starts
under = LHC fails
So I guess we need them "just right".
by Kasuha
Fri Feb 26, 2010 12:52 pm
Forum: Science
Topic: Quark-Gluon Plasma - QGP
Replies: 7
Views: 13996

Re: Quark-Gluon Plasma - QGP

I think the magnetic fild generated by moving electric charges has no poles but only closed circlelike magnetic lines and the charged Quarks circle arround them the positiv in one direction, the negative in the other direction. . Sure these are closed lines but they still got "towards south" or "to...
by Kasuha
Fri Feb 26, 2010 12:16 pm
Forum: Science
Topic: Can black holes grow?
Replies: 36
Views: 49807

Re: Can black holes grow?

I have found this nice page about how falling to a black hole looks like (from the falling observer point of view). It's quite impressive I think.
by Kasuha
Thu Feb 25, 2010 3:57 pm
Forum: Science
Topic: Quark-Gluon Plasma - QGP
Replies: 7
Views: 13996

Re: Quark-Gluon Plasma - QGP

Yes but they did not mention poles, at least not in the article. "They're moving parallel to vertical" does not tell me if they're going up, down, or some up and some down.
So I assumed they meant poles and wanted to make sure.
by Kasuha
Thu Feb 25, 2010 1:37 pm
Forum: Science
Topic: Quark-Gluon Plasma - QGP
Replies: 7
Views: 13996

Re: Quark-Gluon Plasma - QGP

positively charged quarks may prefer to emerge parallel to the magnetic field in a given collision event, while negatively charged quarks prefer to emerge in the opposite direction It's a bit confusing here. Isn't "opposite direction" to "parallel to the magnetic field" also parallel to the magneti...
by Kasuha
Wed Feb 24, 2010 8:03 am
Forum: Science
Topic: How can a black hole have electric charge?
Replies: 11
Views: 27137

Re: How can a black hole have electric charge?

Well... if virtual particles don't have to obey laws of real particles, then I'd expect there to be no Hawking radiation - because it is based on assumption that they do.
by Kasuha
Tue Feb 23, 2010 7:52 pm
Forum: The Accelerator
Topic: COOL links
Replies: 57
Views: 85207

Re: COOL links

Brian Cox is kinda scary sometimes, he may explain a thing or two but then he comes with that "and that's what we need the LHC for, we're gonna make a BIG BANG with it" and the only thing I am missing at that point is the characteristic MUAHAHAHAHAHA of a mad scientist. It almost makes me forget abo...
by Kasuha
Tue Feb 23, 2010 4:19 pm
Forum: Science
Topic: Can black holes grow?
Replies: 36
Views: 49807

Re: Can black holes grow?

1. Not according to what I have read about it (don't remember where): for an outside observer (at a safe distance etc.) the object never reaches the horizon, but for an observer falling into a black hole the ride down is swift and very short. Yes, it's swift and very short. No problem with it. But ...
by Kasuha
Tue Feb 23, 2010 3:20 pm
Forum: Science
Topic: Infinite series in quantum phyics
Replies: 29
Views: 37766

Re: Infinite series in quantum phyics

In calculus it is common to add very small distances as far as I know. Distances will be quickly smaller than a Planck distance. Doesn't this mean that you cannot use calculus to compute the position of an object? Doesn't it also mean that it is wrong to say that the geometric series converges to a...
by Kasuha
Sun Feb 21, 2010 12:19 am
Forum: Quantum Philosophy
Topic: False Vacuum
Replies: 38
Views: 68917

Re: False Vacuum

Many people think that "observation" means that someone is watching. I think the term is quite misleading. Important thing is, on particles level the only way to "observe" is to interact, i.e. exchange photons between particles we are working with and some other instrumentation designed to watch the...