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Comment Re:Question about particle accelerators (Score 1) 305

The particle is to all intents a point like object so doesn't have a length to contract, in the case of an object with length then yes both frames see the other as contracted.

Special relativty is completely self conistent in a mathematical view point. From a physical one it can get confusing I would suggest looking up the ladder "parradox" as one such example.

One way to simplify matters is to write down all of the space-time cooridinates of events in you problem in one frame, then peform lorentz boosts to get the result in the other frame and measure lengths etc in that frame rather than applying the time dilation and length contraction formulae blindly

Comment Re:Question about particle accelerators (Score 2, Informative) 305

The particle would not see its own time-dilation so to speak, in the particles rest frame it still decays very quickly and the length contraction then allows it to travel further. From the lab frame the particle is time dilated so decays slowly but the lab equipment is not length contracted in that frame so there are no length contraction effects.

Also with particle accelerators it is very much the energy of the collision that matters, as the particles velocity increases pushing it with more energy actually only increases the speed by a very little amount since it can nevery be greater than c, you can however keep increasing the energy of the particle.

Submission + - LHC Reaches Over One Trillion Electron Volts (bbc.co.uk)

An anonymous reader writes: "The LHC pushed the energy of its particle beams beyond one trillion electron volts, making it the world's highest energy particle accelerator."
Science

Submission + - Beam splash events recorded at ATLAS

An anonymous reader writes: On 20th November the Atlas detector recorded its first beam splash events from the LHC at CERN. The events were produced from the beam being dumped into the calorimitors upstream and down stream from Atlas producing a large number of particles that passed through the detector. The Atlas website has pictures of the events
Science

Submission + - World on course for catastrophic 6C rise (independent.co.uk)

jamie writes: "The world is now firmly on course for the worst-case scenario in terms of climate change, with average global temperatures rising by up to 6C by the end of the century, leading scientists said yesterday. Such a rise — which would be much higher nearer the poles — would have cataclysmic and irreversible consequences for the Earth, making large parts of the planet uninhabitable and threatening the basis of human civilisation."

Comment Re:Remember, this is only ONE hurdle to clear... (Score 1) 115

Umm well kind of, its an experiment to confirm the existence of the higgs if it does exist and to probe the physics of electroweak symmetry breaking (i.e find whatever else is causing the higgs mechanism) if it doesn't. I mean determining that the existence of a higgs particle is an accurate theory is the same as determining its existence give or take some philisophical arguments about existance.

Comment Re:Math cannot exist before wind. (Score 2, Interesting) 221

What is the difference between a mathematical concept representing or reflecting something physical and a mathematical concept that is used as a tool in a physical model?

Seems to me if you're using them in your physical theory then they have as much of a physical role (I'm not saying that they have to correspond to some observable quantity though) as say a symmetry group or any other mathematical object you use.

Comment Re:That is ntohing to do with freedom of speech (Score 2, Funny) 409

By the way, I know this because I'm French, I was born in France, and I've lived part of my life in France. Except that you are not right, and I am a french, I have lived there 25+ years. The only point where you are right is that we do not have "freedom of speech" as open and unbound as the US, but we *DO* have a liberty of expression.

If you speech isn't open and unbounded does that make it compact?

Comment Re:It's a black hole! (Score 1) 234

Its well known that the strong force is much stronger than the electromagnetic interaction it also has a much better symmetry group SU(3) which is way cooler than U(1) electromagnetism isn't even special!!!

Once you include the strong force into your calculations its obvious that the universe is at least 100x older than current cosmological predictions and you dont even need the higgs or neutrinos in the model since these havn't really been detected I mean you've never seen one have you?

There's a reason that the strong force is allways ignored, its because it doesn't fit with a passage in the Koran which states that the standard model should contain only symmetries with fewer than 8 generators because the "physics community" is secretly run by an organisation bent on keeping this truth from us they completely ignore the strong force claiming that it doesn't effect gallaxy formation and that quarks are confined when really jesus was made of quarks therefor the great flood happened!!

Comment Re:It's a black hole! (Score 1) 234

How is the overwhelming evidence for dark matter gathered in the last few decades ignoring the last 60 years?

Its not like there hasn't been plenty of research into general relativity and gravity in the last 60 years but as far as I know general relativity is still the best model for gravity with some serious work to be done to build a quantum theory of gravity.

Comment Re:It's a black hole! (Score 2, Insightful) 234

Seriously? darkmatter has been theoriticaly predicted and experimentaly detected in three observations at three largely different scales. Your two options with the observation is to change newtowns and einsteins laws of gravitation so that they fit these results and get left with seriously fudged laws of gravity (I'm not even sure if anyone managed to do this in a consistent way) or you infer the pressence of dark matter, which given our understanding of particle physics is highly plausable that such matter can exist and some of our best new theories to solve other problems in physics even go on to predict such a particle.

If you want to troll about how "mainstream science" is like some kind of cult pick an area of research that is'nt backed up with excellent experimental observation.

Comment Re:News for nerds? (Score 1) 660

"I'm operating from the assumption that an Indian is just as valuable as an American"

Not if your an American....not if you are a US citizen and wanting a home and to feed your family. At that point...you don't give a flying fuck about giving your job to 2 people abroad.

It is one thing to give and care about others in the world, but, rarely is someone altruistic enough to do so at the expense of their quality of life.

Well that's fine from your american point of view, globaly though it is a good thing. The difference here is that from an exterior objective point of view it makes sense that two people having a job is better than one however nobody is really in that position the world works by looking out for your own first which means that in reality one american is more important than two foreigners (if you're american). This is just selfishness and self preservation but its hardly going to go away.

The problem comes when the people running their companies decide they actually care about an even smaller group of people (themsleves) even more than they do about their neighbours and that they can make more money by out sourcing at the expense of their country. Really though the logic as to why outsourcing for them is a good thing is the same as why its a bad thing for you so complaining that people need to look after themselves actually just leads to more outsourcing.

Comment Re:Sigh... (Score 1) 171

If it was just a placebo effect then why bother with the pot at all there would be much easier ways to administer it so really if it's being perscribed its almost certainly doing better than placebo in trials.

As for reviewing it medicinal pot unlike a pill like vicodin is not allways going to be the same, it will come in different strengths, taste different, give different highs (side effects I guess) and this can not and is not tested and controlled in the same way that every vicodin pill is exactly the same. So in that respect reviewing is useful.

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