Moreno

Senior Members
  • Content count

    404
  • Joined

  • Last visited

Community Reputation

8 Neutral

1 Follower

About Moreno

  • Rank
    Molecule

Recent Profile Visitors

6754 profile views
  1. Does exist some kind of liquid by drinking which a human can make its body dielectric? It suppose to work like an "anti-electrolyte". Desirably it suppose to make body invulnerable to hundreds of volts and from low to high frequencies. Desirably this liquid suppose to have zero effect on any body functions.
  2. A strange hypothetical planet

    What if plant rotates in two dimensions simultaneously, around the axes and perpendicular to them? In this case there would be no permanent equator.
  3. Can there exist an unusual planet where according to some strange pattern of rotation no seasons of year and no significant difference in temperature between different places on the planet? It means there is days and nights but all places on the planet are illuminated by the star with the same intensity and periodicity. For example, what if planet exhibits very fast and large axe precession?
  4. Among all the mammals humans have the longest hair and beard. The apes are claimed to be closest to humans physiologically. But they have scarce hair on their faces. A bonobos A Chimpanzee A male gorilla A gibbon A An orangutan male At least non of them have such thing as a fully-developed mustache. Someone can argue that non of the apes live in a cold climate in difference from humans. But here are some representatives of a nations who always lived in a hot climate. g
  5. I think a good example of the effect I talk about is watching movies or listening music. Hardly some person will watch even the most interesting movie every day during the years or listen the most beautiful song whole days for a years around.
  6. What is the neurophysiologic mechanism which stands behind the tolerance? For example, if we offer a good cake to a person who didn't eat any confectionary for a while, majority of people will find it tasty. However, if we will feed the same person with a good cake every day, majority of people will find it not as pleasurable let say after a year of the regular cake consumption. What happens to the brains of people when phycological response to some stimulus dulls with time? Can we do something to the brain, so it will always excite with the same strength to some particular stimulus? I think the same thing can be related not necessarily to the sensory perceptions, but also to the world of fantasies. For example, it is difficult to find a man who would be obsessed with idea to purchase some particular make of the car for all his life and wouldn't give preference to a newer and better model when he will ultimately get money to purchase a high class auto. Etc.
  7. Thermoelectric effects in metals

    No, it is not.
  8. Thermoelectric effects in metals

    How can it be explained that Platinum has the smallest Seebeck coefficient among pure metals which is conditionally taken for zero? https://en.wikipedia.org/wiki/Seebeck_coefficient#Definition
  9. Thermoelectric effects in metals

    Well, obviously I meant: "all the valence electrons are free". Though this is a rude approximation.
  10. It seems that some thermoelectric effects (such as Seebeck and Peltier effects) can be associated with carriers (electrons and holes) generation and recombination. But thermoelectric effects can be observed in many metals as well, not only in semiconductors. Can there be such effects as carrier generation and recombination in metals? It doesn't seem to be possible as all electrons in metals are typically free electrons even at 0 K, at elevated temperatures all the more so. How then could there be an electron-hole recombination in metals? For example in Bismuth, Antimony, etc.?
  11. Fermi energy and batteries

    Why there exist a large discrepancy between electrochemical potentials (Fermi levels) and standard electrode potentials? For example difference of Fermi energies between Sodium (3.24 eV) and Aluminum (11.7 eV) is larger than between Sodium and Copper (7 eV). http://hyperphysics.phy-astr.gsu.edu/hbase/Tables/fermi.html#c1 However if we look at standard electrode potentials we will see that potential difference between Sodium (-2.71 V) and Copper (+0.33 V) is much larger than between Sodium (-2.7 V) and Aluminum (-1.6). https://en.wikipedia.org/wiki/Standard_electrode_potential_(data_page) So, if we take in account difference between electrochemical potentials (Fermi levels) we would expect that reaction between Sodium and Aluminum will give us much more energy than reaction between Sodium and Copper. But if we look at standard electrode potentials we would expect otherwise. How can we explain it?
  12. Some solvation reactions are quite energetic (either endothermic or exothermic). Does it allow us to create an energy storage (similar to battery) in which energy would be generated when metal atoms pass to a solution through an ion-conducting membrane? If yes, how much energy may we expect to obtain and what about reverse-ability?
  13. I think that a fundamental physical laws similar to "energy conservation law" can be perceived on intuitive level only, no any algebra can be attempted to prove or disprove them. This is just a completely wrong approach. The laws of that kind as majority of other fundamental physical notions are rather philosophical than mathematical categories. And therefore belong to the realm of philosophy (and metaphysics).
  14. Do you routinely stop participating in threads when you've been handed your ass? When may I expect a proper response to my repeated queries in the thread on planetary energy? Too frightened to continue discussion?

    1. StringJunky

      StringJunky

      What do you want him to do, capitulate and preen your ego? :P 

    2. hypervalent_iodine

      hypervalent_iodine

      Area54, I hardly think this is appropriate. Please use your better judgement when engaging with members here, and refrain from acting so hostile.

  15. Fast breeder reactors

    FLiBe is a molten salt made from a mixture of lithium fluoride (LiF) and beryllium fluoride (BeF2). It is both a nuclear reactor coolant and solvent for fertile or fissile material. It served both purposes in the Molten-Salt Reactor Experiment (MSRE). https://en.wikipedia.org/wiki/FLiBe During reactor operation Beryllium and Lithium are converted to other chemical elements by process of nuclear mutation, it seems.