a lot of people in the physics community have been waiting for the Large Hadron Collider to get turned on. I hope he ends up finding the higgs particle, but i dunno if it's 90% certain...
Krypton
What's the track of a Higg's particle?
Moongoose
quote:
Originally posted by Dervish
Eisenstein believed in god too I think?
Also what I don't get is how can an electron (which has mass) travel at the speed of light?
If i understand that correctly (i probably dont but this is my interpretation of it). First you get the electron to as near as possible to the speed of light in vacuum nd only after it reaches that speed you have it hit water. For the fraction of the second that it needs to slow down it travels faster than the local speed of light. In the case of water i think that cw is only 2/3 of c0.
Q5echo
quote:
Originally posted by Dervish
Also what I don't get is how can an electron (which has mass) travel at the speed of light?
i think you have to separate an electron's Newtonian properties (mass) from it's Einsteinian/Heisenberg properties (position/momentum). i think.
Shakka
Any chance the LHC gets turned on and completely sucks the earth into oblivion? There are some interesting youtube videos on it.
Why do all of the scientists dress in black and speak with the black background? Is that for dramatic effect? It's as if they are talking heads floating in space!
Krypton
I would think any technical black hole created is so infinitesimally small, it evaporates in less than a second...:nervous:
Shakka
quote:
Originally posted by Krypton
I would think any technical black hole created is so infinitesimally small, it evaporates in less than a second...:nervous:
I think they allude to that in the first video. It still leaves me curious as to what could happen? Don't black holes technically have infinite gravity? And on some relatively scale I think a second could be the equivalent of a millenium! Don't get me wrong--I haven't taken a physics class in 12+ years. I just question if there is a serious grasp for the potential consequences if something goes wrong! I hope it's all a very well contained experiment!
Zild
I've read through the black hole theories and I don't believe there is any danger. But then again I haven't taken much any physics past Quantum. Although physical chem, my specialty, is all quantum we don't with anything smaller than a hydrogen atom. So I'm not well versed with subatomic particles. Basically I could be wrong.
Krypton
Check this out. There is a limit to how far back we go. Essentially, before 10^-43 seconds after the Big Bang, all four fundamental forces of natures were all unified. Therefore, it may be impossible for us who are restricted to a world in which the four forces are separated, to describe nature with all four fundamental forces combined. So, attaining this "Unified Theory of Everything" may be unattainable...UNLESS...we can figure out a way to unify the four forces...Never say never with human innovation...:D
quote:
Planck Epoch
In cosmology, the Planck epoch (or Planck era), named after Max Planck, is the earliest period of time in the history of the universe, from zero to approximately 10-43 seconds (one Planck time), during which quantum effects of gravity were significant. One could also say that it is the earliest moment in time, as the Planck time is perhaps the shortest possible interval of time, and the Planck epoch lasted only this brief instant. At this point approximately 1.37×1010 years ago the force of gravity is believed to have been as strong as the other fundamental forces, which hints at the possibility that all the forces were unified. Inconceivably hot and dense, the state of the universe during the Planck epoch was unstable or transitory, tending to evolve and giving rise to the familiar manifestations of the fundamental forces through a process known as symmetry breaking. Modern cosmology now suggests that the Planck epoch may have inaugurated a period of unification or Grand unification epoch, and that symmetry breaking then quickly led to the era of cosmic inflation, the Inflationary epoch, during which the universe greatly expanded in scale over a very short period of time.
Theoretical ideas
As there presently exists no widely accepted framework for how to combine quantum mechanics with relativistic gravity, science is not currently able to make predictions about events occurring over intervals shorter than the Planck time or distances shorter than one Planck length, the distance light travels in one Planck time—about 1.616 × 10-35 meters. Without an understanding of quantum gravity, a theory unifying quantum mechanics and relativistic gravity, the physics of the Planck epoch are unclear, and the exact manner in which the fundamental forces were unified, and how they came to be separate entities, is still poorly understood. Three of the four forces have been successfully integrated in a common framework, but gravity remains problematic. If quantum effects are ignored, the universe starts from a singularity with an infinite density. This conclusion could change when quantum gravity is taken into account. String theory and Loop quantum gravity are leading candidates for a theory of unification, which have yielded meaningful insights already, but work in Noncommutative geometry and other fields also holds promise for our understanding of the very beginning.
Experiments exploring this time
Experimental data casting light on this cosmological epoch has been scant or non-existent until now, but recent results from the WMAP probe have allowed scientists to test hypotheses about the universe's first trillionth of a second (although the cosmic microwave background radiation observed by WMAP originated when the universe was already several hundred thousand years old). Although this interval is still orders of magnitude longer than the Planck time, other experiments currently coming online including the IceCube neutrino detector and the Planck Surveyor probe, promise to push back our 'cosmic clock' further to reveal quite a bit more about the very first moments of our universe's history, hopefully giving us some insight into the Planck epoch itself. Of course, data from particle accelerators provides meaningful insight into the early universe as well. Experiments with the Relativistic Heavy Ion Collider have allowed physicists to determine that the Quark-gluon plasma (an early phase of matter) behaved more like a liquid than a gas, and the Large Hadron Collider soon to come online at CERN will allow us to probe still earlier phases of matter, but no accelerator (current or planned) will allow us to probe the Planck scale directly. However, the more we understand about how matter forms, the more precisely we will be able to interpret what we learn from astrophysical data, and from other sources.
wikipedia...
Fir3start3r
quote:
Originally posted by Krypton
I would think any technical black hole created is so infinitesimally small, it evaporates in less than a second...:nervous:
Can a second be used to quantify anything to do with black holes? :p
DJ Shibby
It's a bunch of bull designed half-assedly to solve holes in an already holey system.
They're stuck on the idea that we're all waves and orbits. In 10 to 20 years there will be a whole new set of criteria for the beginning of the universe, matter, and time.
This one, though, is out now, IMO.
DJ Shibby
quote:
Originally posted by Krypton
Check this out. There is a limit to how far back we go. Essentially, before 10^-43 seconds after the Big Bang, all four fundamental forces of natures were all unified. Therefore, it may be impossible for us who are restricted to a world in which the four forces are separated, to describe nature with all four fundamental forces combined. So, attaining this "Unified Theory of Everything" may be unattainable...UNLESS...we can figure out a way to unify the four forces...Never say never with human innovation...:D
wikipedia...
Sounds good, except that all "four" forces don't really exist, and are merely temporary placeholders to describe what actually is.
They used to believe that four elements controlled the universe, and apparently four is a really popular number for describing this sort of , cause it sticks.
There is no theory of everything, ever. It's make believe scientific religious jargon to keep moving in the direction we're going, instead of exploring new directions, because we are creatures of comfort.
Eh, people need to believe/have faith in something.
