First generation matter actually consists of "up" quarks, "down" quarks and a "strange" quark! lol
The 4th generation of matter
Sort:
i was wondering, i used to think that with the big-bang, matter was shot into chunks into infinity..But i suddenly got the idea that each atom had to be released from its bond, where it was attached to its own position...
If this is true, and sound created it, then all these loose matter, would just rush away from the single point into a shell and then thinning out, and then thin out with the distance of atoms increasing from one another- eventually they just disappear into infinity, and then to slow down and comeback, as the gravitational pull, pull each atom back to its own position towards the very same singularity.
and another big bang start.
Why did we get clouds of stardust? Surely this prove that something caused atoms to join together, forming stars and galaxies... I wonder why this happen...perhaps the singularity was moving, causing the imbalance, or a hit from an unknown source, could cause this scatter of stardust...impact, and not sound as what I was thinking...
An impact can be as small as a photon, a photon from another big bang...
"strange" and "charm" quarks are second generation
Immediately after the BB there were no atoms...Probably the first things to appear were quarks, leptons and bosons in a soup of energy and particles.The heat and pressure were intense so they couldn't form atoms.So when the universe cooled down they combined to form heavier particles and after that hydrogen atoms and in time heavy elements,molecules etc.Atoms join together to have a certain number of electrons on the outer electron-shell...for example the hydrogen atom has one proton and one electron,when two H-atoms combine they'll have two common electrons so they both completed their stable electron-configuration which is 2 for the first shell.For the second shell it is 8 so an oxygen atom (8 protons ,8 electrons...2 electrons on the first shell and 6 on the second) needs two electrons so it finds two H-atoms and they combine to form H2O (water) and so on...
The scattering of matter is probably due to entropy which is the increasing of disorder in a closed system over time (for more precise definition see wikipedia).
Matter could not have disappeared into infinity after the BB because there was no infinity...the BB itself created space-time and mass-energy and space was finite...it may be finite even now however the universe is now huge compared to the early one.
There is a theory about the Big Crunch wich said that the Universe will stop expanding and gravity will pull everything back to a black hole singularity...observations have shown that the expansion is not slowing down,it is accelerating.
Feb 14, 2011
0
#6
First generation fermions are up quark, down quark, electron, electron neutrino. It is possible the article may be misleading, as I have heard it stated that empirical evidence has excluded the existence of more than 3 generations of particles (possibly astronomical evidence? Can't quite recall). But perhaps the result was not as conclusive as was suggested.
Yes...Wikipedia sais a 4th generation is not possible:
"Within the Standard Model, fourth and further generations have been ruled out by theoretical considerations. Some of the arguments against the possibility of a fourth generation are based on the subtle modifications of precision electroweak observables that extra generations would induce; such modifications are strongly disfavored by measurements. Furthermore, a fourth generation with a "light" neutrino (one with a mass less than about 45 GeV/c2) has been ruled out by measurements of the widths of the Z boson at CERN's Large Electron–Positron Collider (LEP).[5] Nonetheless, searches at high-energy colliders for particles from a fourth generation continue, but as yet no evidence has been observed.[6][7] In such searches, fourth-generation particles are denoted by the same symbols as third-generation ones with an added prime (e.g. b′ and t′)."
http://www.newscientist.com/article/mg20627622.700-matter-the-next-generation.html
Unfortunately the website asked me to subscribe to read the whole article so I don't have too much on this...if you find more about this please let me know.
"TWO teams working at the Tevatron particle smasher in Batavia, Illinois, have found hints of a new generation of fundamental particles - to add to the three generations we already know about. What's so special about these new particles?
If they really do exist, they might explain a long-standing puzzle - how the universe avoided self-destruction in its earliest moments after the big bang.
First a rundown on what we know already. Each of the three known generations of matter contains two types of fundamental particle - quarks and leptons. First generation leptons include the familiar electron and neutrino (see images, right).
The first generation of matter can explain everything we encounter in everyday life. Atomic nuclei are composed of protons and neutrons, which are in turn composed solely of "up" and "down" quarks.
The second and third generations were introduced to explain the dozens of varieties ..."