-
Posts
10029 -
Joined
-
Last visited
-
Days Won
37
Content Type
Profiles
Forums
Events
Everything posted by Mordred
-
I'm looking for other articles, both countering and supporting the metastable Higg's as a possible inflation influence. Some like these tend to add further speculations but that's OK as I'm more interested in the above. I'll filter through the articles as they are recommended. Just doing this for self research, the Higg's field is an area I'm currently studying in particular the seesaw 1 and seesaw 2 models of SO(10). If anyone happens to know a good article covering non SuSy SO(10) I wold also be interested. I have found tons of the SuSy forms but haven't been able to locate the non Susy. Even though numerous of my articles state there is a non SuSy varient. Metastability of the False Vacuum in a Higgs-Seesaw Model of Dark Energy http://arxiv.org/abs/1310.5361 Standard Model Higgs Boson Mass from Borderline Metastability of the Vacuum http://cds.cern.ch/record/496447/files/0104161.pdf Can LHC 2016 Data answer the question: Is Our Universe MetaStable http://www.tony5m17h.net/HiggsMSV.pdf anyways its been hard to find recent and good articles. So any recommendations are welcome
-
the last quote was from wiki, I should have looked at it closer lol, doesn't a reversible process involve no change in entropy by definition? "In thermodynamics, a reversible process -- or reversible cycle if the process is cyclic -- is a process that can be "reversed" by means of infinitesimal changes in some property of the system without entropy production (i.e. dissipation of energy)" if this definition is correct, how would the second law apply to it? or The process in which the system and surroundings can be restored to the initial state from the final state without producing any changes in the thermodynamics properties of the universe is called a reversible process. In the figure below, let us suppose that the system has undergone a change from state A to state B. If the system can be restored from state B to state A, and there is no change in the universe, then the process is said to be a reversible process. The reversible process can be reversed completely and there is no trace left to show that the system had undergone thermodynamic change. For the system to undergo reversible change, it should occur infinitely slowly due to infinitesimal gradient. During reversible process all the changes in state that occur in the system are in thermodynamic equilibrium with each other. http://www.brighthubengineering.com/thermodynamics/4616-what-are-reversible-and-irreversible-processes/
-
ah no problem I can agree with that, evidently not the best way to define time lol
-
your not wrong, entropy can go from disorder to order, however you need to be careful the second law states The second law of thermodynamics states that the entropy of an isolated system never decreases, because isolated systems always evolve toward thermodynamic equilibrium, a state with maximum entropy. http://en.wikipedia.org/wiki/Second_law_of_thermodynamics the other key factor is entropy is a state function http://en.wikipedia.org/wiki/State_function the second law generally holds try for irreversible processes, not for reversible processes. http://www.physics.ohio-state.edu/p670/textbook/Chap_6.pdf as far as entropy being used in terms of general disorder vs order, I've always found this usage outside of thermodynamics to be misleading and a poor use of entropy
-
not really its a definition, one could argue that due to relativity, processes have a measurable difference in how long it takes those events to happen. We call this a time dilation, but does it necessarily mean time itself changes, or does it simply mean the relativistic environment influences the processes involved. Sounds like semantics I know, but its an important consideration. Take the atomic clock experiment, did time change or did the energy exchange simply take longer due to the velocity? Time itself if there is such an entity other than being a unit of measure, isn't necessarily the only possible explanation for the difference in decay rates. Its just as plausible that the particles involved in the decay has an increased difficulty interacting with its environment. (probably not but it is possible) The question really boils down to is does time necessarily have to have some hidden property, or can the effects of time dilation be explained via other processes such as rate of energy exchange vs environment? by definition time is nothing more than the measure of rate of change, we simply do not know if time itself is the cause of time dilation, or if its due to other phenomena, ie particle interaction etc. Its certainly simpler to define those changes in rates as a time dilation, that may or may not be the case though. One should never close the book on any theory regardless of how accurate that model is. We can only measure time by known process rates we cannot detect it directly
-
your argument is based on units of measure, time doesn't care how we measure it or what measuring tool or device we choose to allow us to define the rate of change in a process. time is simply a rate of change of any and all processes, doesn't matter how we measure it (or measure of no change, duration)
-
time is simply a rate of change, you can have change that involves no change of space, depending on how you measure that change. Ie if you measure the time it takes for water going from solid to liquid, but if you measure the same process from the microscopic level you would see an overall change in volume. Depends on process your measuring. I don't agree with your first statement, it is our perception of time that can change. The universe and time doesn't care how we perceive it. Time is simply a rate of change, I've always been amazed how everyone wants to place some greater meaning to time,( Arrow of time and entropy being one example). Time is a rate of change in any and all possible processes time dilation is simply a different rate of change, of the systems being observed or measured compared to events on your own relative time frame
-
ok I have to ask which form of mass are we discussing? -inertial mass measures an object's resistance to changes in velocity m=F/a. (the object's acceleration) -Active gravitational mass measures the gravitational force exerted by an object. -Passive gravitational mass measures the gravitational force experienced by an object in a known gravitational field. -Mass-Energy measures the total amount of energy contained within a body, using E=mc² -atomic mass please note I did not mention rest mass eo =moc2 http://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation I assume were discussing mass-energy which is what myself and Strange have been discussing. your supplying the energy to break the bonds, once the bonds are broken your now measuring the constituent components whose totals will be higher than the previous bound system, however if you measure those constituents prior to allowing them to cool back to a normal state your measuring its total energy. Which isn't the same as measuring the change due to a chemical bond. You need to renormalize the system to get an accurate mass change due to the binding energy "Since all forms of energy exhibit rest mass within systems at "rest" (that is, in systems which have no net momentum), the question of where the missing mass of the binding energy goes, is of interest. The answer is that this mass is lost from a system which is not closed. It transforms to heat, light, higher energy states of the nucleus/atom or other forms of energy, but these types of energy also have mass, and it is necessary that they be removed from the system before its mass may decrease. The "mass deficit" from binding energy is therefore removed mass that corresponds with removed energy, according to Einstein's equation E = mc2. Once the system cools to normal temperatures and returns to ground states in terms of energy levels, there is less mass remaining in the system than there was when it first combined and was at high energy. Mass measurements are almost always made at low temperatures with systems in ground states, and this difference between the mass of a system and the sum of the masses of its isolated parts is called a mass deficit. Thus, if binding energy mass is transformed into heat, the system must be cooled (the heat removed) before the mass-deficit appears in the cooled system. In that case, the removed heat represents exactly the mass "deficit", and the heat itself retains the mass which was lost (from the point of view of the initial system). This mass appears in any other system which absorbs the heat and gains thermal energy.[6]" from the wiki article I posted
-
It probably reads as this or similar the thing that gets people is the mass of a bound system is lower than its constituent components. binding energy =mass change*c2 the energy loss is used to maintain the bond (binding energy) upon breaking the chemical bond the binding energy is released as heat. However the energy to break the bonds is supplied by the environment. So there is a chemical bond effect on mass, http://en.wikipedia.org/wiki/Binding_energy
-
have you tried a fresh battery? part of the circuitry in the cell phone detects the required charging level to full charge. I've seen similar problems being due to the battery itself, some batteries also have circuits in them. Never tore apart the S3 battery though.
-
lol sorry there isn't an easier way, the 6 parameters of the FLRW metric can be used to calculate numerous parameters. For example just from the temperature of the CMB one can calculate how each particle species contributes to its black-body temperature, (including the density of each particle species) This article takes 3 chapters to do it in. It also has a good review section prior to getting into the thermodynamics, http://www.wiese.itp.unibe.ch/lectures/universe.pdf:" Particle Physics of the Early universe" by Uwe-Jens Wiese Thermodynamics, Big bang Nucleosynthesis LCDM is an extremely involved model,
-
there is no way to cover that in a single post, you need to look at full textbooks to fully understand the LCDM models 6 parameters. here is a basic entry level article on universe geometry http://cosmology101.wikidot.com/universe-geometry page 2 http://cosmology101.wikidot.com/geometry-flrw-metric/ here is some free textbook style articles http://arxiv.org/pdf/hep-ph/0004188v1.pdf :"ASTROPHYSICS AND COSMOLOGY"- A compilation of cosmology by Juan Garcıa-Bellido http://arxiv.org/abs/astro-ph/0409426 An overview of Cosmology Julien Lesgourgues http://cosmo.torun.pl/~boud/Observational_cosmology_-_30h_course.pdf my signature contains more articles that will help your studies the cosmology101 link as well as the the two links on the calculator, (handy for seeing the expansion history). the cosmocalc/start link is the tutorial some of the metrics can be found within the links from that site personally I would recommend buying textbooks Scott Dodelsons "Modern Cosmology" is excellent (particularly in regards to the CMB) also a good introduction is Barbera Ryden's "Introduction to cosmology" this one covers how the FLRW metric works extremely well and how the 6 parameters are derived
-
here is another example, if you have two ships at relativistic uniform motion ships A's time would appear normal from his frame of reference clock, ie clock on his ship, however if he could see a clock on ship b it would appear to be running slowly and vice versa.
-
This is incorrect Hawking radiation is not FTL. When two entangled particles are created outside the black holes event horizon, the positive particle escapes, the negative energy particle falls into the the BH thus reducing the black holes mass and energy. Hawking radiation occurs outside the event horizon and is part of the accretion disk. For a full technical detail on the accretion disk as well as other forms of radiation that occurs within it. (including the angular momentum effects the accretion disk has on the BH's spin see this lengthy article. http://arxiv.org/abs/1104.5499 :''Black hole Accretion Disk'' -Handy article on accretion disk measurements provides a technical compilation of measurements involving the disk itself. as far as quantum tunneling being faster than the speed of light you might want to read these articles (information does not travel faster than light) http://arxiv.org/ftp/arxiv/papers/0708/0708.3889.pdf http://arxiv.org/ftp/quant-ph/papers/0403/0403010.pdf here is a simpler version for those not up on the mathematics http://sitemaker.umich.edu/herbert.winful/files/nimtz_stahlhofen_faster_than_light_speed.pdf
-
here this site will help, as I stated earlier it is trickle charging and also http://www.electroschematics.com/4983/usb-mobile-charger/ you never specified which cell phone you have but different cell phones have different charging requirements here is a brief list http://sindhu.ece.iisc.ernet.in/systemslab/documents/cellphone_chargers.pdf
-
the articles I linked cover those questions. Take the expansion history, we know how the universe expands today, reverse that expansion history. As the observable universe decreases in volume, density and temperature increases. We have observational evidence that supports this. the Universe expands, and hence it was smaller at earlier times. The energy was concentrated in a small region of space, and thus the temperature was high. Processes, which can be studied today only with the biggest particle accelerators, happened naturally at that time. here is the chronology of the universe http://en.wikipedia.org/wiki/Chronology_of_the_universe http://en.wikipedia.org/wiki/Graphical_timeline_of_the_Big_Bang http://en.wikipedia.org/wiki/Big_Bang http://planck.cf.ac.uk/science/timeline/universe/bigbang
-
there is one fundamental problem in the first paragraph, an observer who watches the particle near the speed of c will see the time delay, however the particle itself would experience time as normal. This has no effect on the particles energy, as such there is no need or risk of the particle changing its potential. A particles direction also does not affect the particles energy, unless it is traveling into or out of a gravity well. Due to those misunderstandings the rest of your post also makes no sense as your understanding is incorrect. Another problem you don't understand is space is not I repeat not a fabric, it is simply geometric volume, filled with the energy-density contents of the universe. When cosmologists refer to space curvature etc, what they really mean is the curvature of the gravitational energy-density distribution. or the shape of the area of influences due to gravity. It does not mean space is a curved fabric. Same with overall space geometry. Space geometry is the energy-density relations between gravity and the cosmological constant. Flat space means its actual density is close to its critical density. The energy-density relations has a corresponding pressure relation shown by the equations of state. http://en.wikipedia.org/wiki/Equation_of_state_%28cosmology%29 Universe geometry is explained here http://cosmology101.wikidot.com/universe-geometry page 2 is here (FLRW metric and distance measures) http://cosmology101.wikidot.com/geometry-flrw-metric/ the rest of your write up is also incorrect there is no minimal volume change, space is volume only and as such a change of volume can be any quantity.
-
cell phone chargers trickle charge, you don't want to charge a cell phone battery too fast as it will reduce its life expectancy.
-
no I mean we have no means to gather direct measurements prior to the time of the CMB, so any knowledge we have is based on LHC studies and indirect measurements of the CMB anistropies
-
As mathematics, has briefly described, we do not understand how the universe started, prior to inflation out understanding is based upon our research in high energy particle physics and the related thermodynamics. We know the universe started at a hot dense state, but not the reason behind that beginning. Our knowledge of particle physics show us that one the of the earliest particles to drop out of thermal equilibrium is the photon however the photon needs a mean free path to be detectable. At the earlier stages of the universes beginning that mean free path is to short for us to see today. Google dark ages cosmology http://en.wikipedia.org/wiki/Chronology_of_the_universe we will not see prior to the dark ages due to the mean free of photons, our best hope of gathering direct observational information prior to the dark ages lies in the neutrino background. However out ability to detect neutrinos is limited. As such much of the physics prior to inflation is conjectural, we also cannot simulate the temperatures involved in the lab. Though we are making progress with the LHC research. for more information http://arxiv.org/pdf/hep-th/0503203.pdf "Particle Physics and Inflationary Cosmology" by Andrei Linde http://www.wiese.itp.unibe.ch/lectures/universe.pdf:" Particle Physics of the Early universe" by Uwe-Jens Wiese Thermodynamics, Big bang Nucleosynthesis
-
that's the problem, we simply don't know prior to inflation, there must have been some form of expansion prior to inflation otherwise the universe would have simply collapsed. (temperatures would have also increased, instead of decreasing) However we simply do not know as we can never collect any data prior to the dark ages. There is the possibility we will one day see further than the dark ages using the cosmic neutrino background. However our ability to detect neutrinos are still too limited. So making any statements prior to inflation is purely conjectural. If we can resolve which inflationary model is correct that would also provide clues. For example if say one of the Higg's inflationary models and either supersymmetry (MSSM) or SO(10) proves to be accurate. Then we can at least develop a thermodynamic process. More specifically we would be able to understand the particle physics and thermodynamic relations of the Higg's field and standard model/supersymmetric particles involved. An expanding universe is one that would cool down, that cooling allows particles to drop out of thermal equilibrium and results in phase transitions. Inflation may be a result of one of those phase transitions. One other detail is if the GUT models are accurate, then the planch epoch, GUT epoch and electroweak epoch can only occur for an expanding universe. To the best of our understanding the universe must have had a pre-inflation expansion rate. However we do not know what that rate or mechanism is due to no direct measurement data. As far as quantum explanations Loop quantum cosmology has the pre inflation expansion as the result of a bounce from a previous collapsing universe. However this is only one possible model. There are numerous bounce, cyclic and universe from nothing models, as well as the black hole models In the universe from nothing models, its the result of Heisenburg's uncertainty and the zero energy model. However another universe from nothing model has quantum tunneling from nothing. Similar to inflation's false vacuum to true vacuum in the false vacuum inflation model.
-
Earth itself went through 5 known major extinction events, with 12 minor extinction events, these are only the known ones from fossil records etc. Other planets would also have extinction level events. Planets without an atmosphere having a higher susceptibility. Radiation, meteors etc. The number and types of planetary scale extinction events are numerous. Evolution on a planet does not necessarily always produce intelligent, technological life forms. It took millions of years before humans came into being. Part of the reason we did was that the Dinosaurs were wiped out giving mammals a chance to develop beyond rodent size. As I mentioned before mathematical statistics rarely involve every variable into their equations. Exponential growth is a prime example. For one thing nature trends to establish a balance between animal and plant species. The only reason mankind isn't balanced with nature is our technology, allows us to fight natures processes. Take a region where one species becomes dominant outside of technology his food supply is limited, so that species can only survive to a certain population. If the species survives long enough. Then the likely hood another species evolves, that uses the previous species as a food source increases. Exponential growth is a statistic involving one species, the mathematics you showed doesn't cover food competition, diseases, extinction level events etc. (the numeric scenarios are endless) edit just recalled an interesting story in regards to exponential expansion... When I went to high school in grade 10, I recall watching a video as part of the curriculum. In that video they talked about exponential expansion based on the (then ) current birth rate and death rates. This was back in the early 80's, according to that video by the time the year 2000 rolled around mankind would have lost 98% of its population due to starvation. I recall this as I spent the better part of my younger years worried about population growth. Now that I've studied far beyond those days I learned to realize the numerous factors those numbers never accounted for.
-
Its good to see a 15 year old so interested in Cosmology, that being said the best route for you to undertake understanding cosmology is to understand what the current models and science already understands about cosmology and why. A very common mistake is to try and reinvent the wheel or think outside the box, without understanding what is inside the box. The FLRW metric is an exact solution to Einsteins field equations, currently the strongest model is the LCDM model or lambdaCDM ,[latex]\Lambda CDM[/latex] this is essentially the hot big bang model with the cosmological constant aka dark energy and dark matter included. In light of my advice here is some entrance articles other than the 2 I already posted above. http://arxiv.org/abs/1304.4446 :"What we have leaned from Observational Cosmology." -A handy write up on observational cosmology in accordance with the LambdaCDM model. http://www.phinds.com/balloonanalogy/ : A thorough write up on the balloon analogy used to describe expansion http://cosmology101.wikidot.com/redshift-and-expansion http://cosmology101.wikidot.com/universe-geometry textbook style http://arxiv.org/pdf/hep-ph/0004188v1.pdf :"ASTROPHYSICS AND COSMOLOGY"- A compilation of cosmology by Juan Garcıa-Bellido http://arxiv.org/abs/astro-ph/0409426 An overview of Cosmology Julien Lesgourgues http://arxiv.org/pdf/hep-th/0503203.pdf "Particle Physics and Inflationary Cosmology" by Andrei Linde historical articles handy to get a picture in how cosmology developed http://www.astrosurf.com/luxorion/hubble-law-redshift1929.htm Reprint of one of Hubbles papers. http://www.marxists.org/reference/archive/einstein/works/1910s/relative/relativity.pdf An authorized reprint of Einsteins Special relativity paper. http://apod.nasa.gov/diamond_jubilee/debate20.html The "Great debate of the 20's" jubilee reprint article available this one covers Friedmann (FLRW metric) http://arxiv.org/abs/1302.1498 " “The Waters I am Entering No One yet Has Crossed”: Alexander Friedman and the Origins of Modern Cosmology" written by Ari Belenkiy these articles are essentially entry level with some exceptions, but they should get you started, good luck in your studies.
-
scientifically speaking space is just geometric volume filled with the contents of the universe, space itself has no energy or matter. Space geometry is determined by energy-density relations between matter and the cosmological constant, as compared to the critical density. 7 and 6 are in conflict with one another "if space is constant with no pressure etc how does it expand? Superluminal expansion depends on the separation distance of measurement. Hubble's law states the greater the separation distance the greater the recessive velocity [latex]V=HD[/latex] here is a good article on the misconceptions on superluminal expansion http://tangentspace.info/docs/horizon.pdf :Inflation and the Cosmological Horizon by Brian Powell http://arxiv.org/abs/astro-ph/0310808 :"Expanding Confusion: common misconceptions of cosmological horizons and the superluminal expansion of the Universe" Lineweaver and Davies how particles gain kinetic energy, is well understood there is little mystery there, much of which is described by basic physics (heat) laws of thermodynamics. Your theory doesn't explain how to handle the laws of thermodynamics, which in cosmology is covered under the ideal gas equations. The FLRW metric does include the equations of state, which is the ideal gas portion a theory such as this without the supportive math is just a hypothesis without proof
-
Neither do I, far too many variables