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DV8 2XL

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Everything posted by DV8 2XL

  1. Look at my address, I'm Canadian too http://www.addison-electronique.com/home.htm Canadian company, Canadian dollars
  2. They should, they use to stock them. If not try Addison's
  3. Make a homopolar, or disk dynamo. This is an electrical generator consisting of a conducting disk rotating in a magnetic field with one electrical contact on the axis and the other on the edge of the disk. attach it across a DC source and it will become a homopolar motor. Not only is this neat in it self, but there is a lot of non-intuitive electro magnetic stuff hapening here.
  4. Teenage gamers have the time and the zitsflesh to deal with steep learning curves - would that he put the same degree of concentration into his studies.
  5. I don't know about the non-political part. In some parochial schools it would be waving a red cape. The Earths only ~6000 yrs. old for some people - and they are not partial to evidence to the contrary.
  6. DV8jr. is into flight sims, I'll pass the link on to him
  7. True, but (thinking from a kid's POV for a moment) nothing makes the dummies jump like waving the probe over a set of five nondescript rocks and having the counter roar near one of them.
  8. If you ever get access to a Geiger counter, take a walk with it along a railroad track, or breakwater. Odds are in less than an hour, you'll find some VERY hot chunks of ore bearing granite.
  9. Use a Geiger-counter to measure the radiation given off by some common every-day items. Build a cloud-chamber from Lexan and dry ice
  10. Oh yes you would definitely see stress rings after etch from an event like that
  11. I wish. No was lured into aviation as a callow youth, and fell in love. Nuclear topics are just an interest.
  12. 6. Why do you think we will do your homework for you?
  13. I think he is talking about a loss of identity. Identity as in membership in a community.
  14. Well I sill contend the only technology mature enough to come on line and scale in time to meet our energy needs is nuclear fission. Breeding reactor can produce the fuel we need from thorium if and when cheap supplies of uranium run out, and standard designs can lower the cost and time-to-market.
  15. Well I sill contend the only technology mature enough to come on line and scale in time to meet our energy needs is nuclear fission. Breeding reactor can produce the fuel we need from thorium if and when cheap supplies of uranium run out, and standard designs can lower the cost and time-to-market.
  16. Then do you think that the new broad acceptance will change the nature of being gay? I ask because my wife's gay uncle (now in his late 70's) has said that he thinks the whole gay culture will perish, now that the community no longer has to huddle together for mutual protection.
  17. Yes, but I think that CAD is also part of a modern BEng program as well.
  18. According to Max Tegmark, the existence of other universes are a direct implication of cosmological observations. In an article entitled "Parallel Universes" in the May 2003 issue of Scientific American, he presents a clear and comprehensive picture of the idea of parallel universes. Tegmark describes the set of related concepts which share the notion that there are universes beyond the familiar observable one. He goes on to provide a taxonomy of parallel universes organized by levels. Level I: (Open multiverse) A generic prediction of cosmic inflation is an infinite ergodic universe, which contains Hubble volumes realizing all initial conditions - including an identical copy of you about 10^(10^(29)) meters away. Level II: (Andre Linde's bubble theory) In chaotic inflation, other thermalized regions may have different effective physical constants, dimensionality and particle content. Surprisingly this level includes Wheeler's oscillating universe theory as well. Level III: (Hugh Everett III's many-worlds interpretation) An interpretation of quantum mechanics that proposes the existence of multiple universes, all of which are identical, but exist in possibly different states. It is widely believed that Everett's interpretation considered as a formal theory is a conservative extension of standard quantum mechanics, that is, as far as results expressible in the language of ordinary quantum mechanics is concerned, it leads to no new results. According to Tegmark "This is ironic given that this level has historically been the most controversial". Level IV: (The ultimate "Ensemble theory" of Tegmark) Other mathematical structures give different fundamental equations of physics. M-theory would be placed here. Since this subsumes all other ensembles, it therefore brings closure to the hierarchy of multiverses: there cannot be a Level V.
  19. Why thank-you. I wrote that entry.
  20. Which is why I can't seen to get a error free drawing out of my engineering department the first time. It's getting to the point where not being able to work with CAD is like not being able to use a terminal was twenty years ago - some folks turned into pests because they always had to have someone nurse them through when ever they had to use it.
  21. The lower limit would be about 4-5Kw (thermal), In pratical terms 150Kw is about as low as one would want to go.
  22. Distribution of flux on both of the magnets isn't the same for the whole pole surface. when the high flux or low flux regions meet, the force changes.
  23. DV8 2XL

    Cold liquid

    There might be a mixture of halogenated alcohols that would do what you want but I don't think any are off-the-shelf products. But I would start my search in that quarter.
  24. Etch and electron microscope is the only way I know you will see the subtle changes that would be produced. And like I said this is stretching it. X-rays (actually you would need rather high gamma) doesn't have the resolution for this type of investigation
  25. In theory, (and stretching theory to the limit here for the sake of argument,) there is a possibility that the blow would show up in the grain structure of the steel via work hardening. Getting this information back out would require etching the steel away one layer at a time and comparing the grain boundaries against some known standard. I will leave the practical implementation of the process to you.
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