The heat is measured in terms of energy. and this energy is proportional to the agitation of the particles. But a single particle moves. It is not "hot". itÂ´s energy is 1/2 m v2: Its cinetic energy. when you have zillions of particles of a gas or a liquiid or a solid in a recipient, it has heat proportional to the mean cinetic energy of these particles by a constant discovered by Boltzman. He used ordinary statistics to derive it. That was the foundation of statistical mechanics. Entropy is also a macroscopical magnitude, like heat. there is a statistical way to calculate entrophy by calculating in which way we can arrange N particules in different speeds and positions compatible with each observable macroscopical state. that is called the partition function.

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Leonard Susskind has lectures on statistical mechanics and explain all of this. 2013/12/4 <spudboy...@aol.com> > Yes not to speak so ignorantly, but what particle caries heat, in the same > sense that photons carry e-m, the boson, radioactivity, the proton, > essentially the strong force, and the graviton-gravity aka mass. Is there a > Heat on, the wiggle of the neutron, using lots of photons to carry heat? > -----Original Message----- > From: Alberto G. Corona <agocor...@gmail.com> > To: everything-list <everything-list@googlegroups.com> > Sent: Wed, Dec 4, 2013 6:38 am > Subject: Re: Question for Bruno Regarding the question of whether > information is physical. > > Yes there is no loss of information* at the lowest level,* that is at > the quantum level . But at the lowest level, there is NO notion of HEAT. > only speeds and momentums of elementary particles. HEAT and temperature > and entropy are statistical parameters, words used in the macroscopical > laws to define sum of energies and mean energies or disorder of particles > because the energy of each particle is not know at the human scale but each > particle carry all the information intact. > > > THe post is talking about the loss of information contained in a > macrostate consisting of a phisical bit of information stored in a > macroscopical object. For example a gate. The conservation of information > on the laws of physics refers to the information of the microstates. not > macrostates, whose information can be lost. and loss of information in a > macrostate generate increase of entropy by the following reason: > > in terms of state, an increase of entropy is produced when we pass from > a macrostate with less possible microstates to other with more possible > microstates. At the beginning we have one macrostate , for example 1 > formed by all the possible configurations of electrons in a gate when it > stores a 1. when erased, we have a macrostate that may be one of the > possible configurations of electrons that may be in a gate with a 1 OR a 0 > or a neutral state. So the entropy has increased because the new > macrostate (erased) has more microstates than the original. the disorder > has increased. How that entropy increase is produced in the erase depend on > the process. It may be by means of a short circuit in the gate. The > electrons circulate and hit the atoms producing heat. the potential > electric energy of attraction produces cynetic energy in the atoms and heat. > > The microstate-macrostate transition is the same case that happens when > we have a gas of different types confined in a room and other room empty. > When we communicate the rooms, the gas expand and fill both rooms, the > entropy increased because the final macrostate admits more possible > configurations speeds and positions of particles in the two rooms . > Something similar, not equal, happens with gas of electrons in a gate. > Measured in termodinamical terms, the temperature decreased and the > entropy measured in termodinamical terms delta Q/T has increased. Q is the > thermal energy or heat. > > However the process is different. in the first case, potential energy is > dissipated and there is increase of Q, in the other the potential energy is > dissipated against the vacuum and produces reduction of T. Q/T seems to be > proportional to the number of microstates in a macrostate. > > The availability of information in the form of macrostates when entropy > is low is what permits living beings to compute in order to anticipate the > future and survive. That can only happen in the direction of entropy > increase. I wrote something all of this here: > > > http://www.slideshare.net/agcorona1/arrow-of-time-determined-by-lthe-easier-direction-of-computation-for-life > I > > > 2013/12/4 meekerdb <meeke...@verizon.net> > >> On 12/3/2013 6:17 PM, freqflyer07281972 wrote: >> >> Hey everyone, >> >> Here is a question for Bruno (and anyone else who wants to chime in) -- >> >> I came across this >> post<http://www.preposterousuniverse.com/blog/2013/11/28/thanksgiving-8/>over >> at Sean Carroll's Preposterous Universe blog, wherein he seems to be >> claiming that the >> relationship between information, entropy, and physical processes is >> pretty well in the bag, i.e. it is well understood by physicists >> and it seems that the concept of information can be cashed out entirely >> in terms of physical processes. >> >> >> But if the processes are reversible (and they can be) then there is no >> entropy increase and no heat. Feynman already outlined how this would have >> to be done in quantum computers. >> >> I think the problems are far from solved. Black holes, in the >> semi-classical approximation seem to destroy information and there are >> various proposals for preserving the unitary evolution of quantum >> mechanics, but none that are completely satisfactory. >> >> Brent >> >> >> >> What does this do to your thought experiment and your Platonic >> orientation towards questions of information theory? >> >> How would you go about explaining the deep relationship between entropy, >> information, and the physical evolution of the universe? >> >> Cheers, >> >> Dan >> -- >> You received this message because you are subscribed to the Google Groups >> "Everything List" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to everything-list+unsubscr...@googlegroups.com. >> To post to this group, send email to everything-list@googlegroups.com. >> Visit this group at http://groups.google.com/group/everything-list. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Everything List" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to everything-list+unsubscr...@googlegroups.com. >> To post to this group, send email to everything-list@googlegroups.com. >> Visit this group at http://groups.google.com/group/everything-list. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > > > -- > Alberto. > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-list+unsubscr...@googlegroups.com. > To post to this group, send email to everything-list@googlegroups.com. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/groups/opt_out. > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-list+unsubscr...@googlegroups.com. > To post to this group, send email to everything-list@googlegroups.com. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/groups/opt_out. > -- Alberto. -- You received this message because you are subscribed to the Google Groups "Everything List" group. 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