Recent content by Reality_Patrol

  1. R

    Does lifting weights stunt growth?

    I guess my point in chiming in on this is that is the issue: weight lifting taken to an extreme can stunt growth. It is the answer to the original question with some practical guidance as to what type of behavior constitutes "extreme". I'm out...RP
  2. R

    Does lifting weights stunt growth?

    Sure, but I think a kid that lifts as much weights as this one: http://www.kidzworld.com/article/5566-the-worlds-strongest-boy has probably crossed that line. I wonder if his parents have considered this, I kinda doubt it. I'll bet they're the type that will use ignorance as their...
  3. R

    Does lifting weights stunt growth?

    No doubt short stature helps in competitive gymnastics. But I was referring to studies done that show intense physical training starting before puberty and continuing after stunt growth. Here's one: http://linkinghub.elsevier.com/retrieve/pii/S0022347606801393 [Broken] There are many more.
  4. R

    Why do we need vitamin D?

    Great question. I agree that fat solubility must be part of the answer. Any vital nutrient that can be stored in fat improves survivability in cold environments, thus is "favored" by natural selection. But I think there must be a deeper aspect to. I'm thinking something unique about...
  5. R

    Does lifting weights stunt growth?

    True, but you might want to take a close look at gymnastics. A sport with a proven track record of stunting growth from heavy exercise/lifting starting from very early age.
  6. R

    Circuit design: electron reverse-diffusion

    Cool, sounds like an old timey science project. Since you're dealing with static charge, I don't see how a step-up transformer could be used. They require AC currents and are galvanically isolated so no physical charge could be transferred. My technique doesn't fit the bill either, it's best...
  7. R

    Circuit design: electron reverse-diffusion

    Hmm, interesting. What do you have in mind for this? I don't think any known material can do this b/c it's opposed to the laws of diffusion. But I know of a way to make this happen using active circuitry.
  8. R

    Auditory signals

    Your question pertains to the physiology of the cochlea. The cochlea is the organ in the brain responsible for transducing acoustic pressure waves into neural impulses. Each cochlea has about 3000 "inner" hair cells which produce impulses when excited. The inner hair cells are "tonotopically"...
  9. R

    Human eye pigmentation

    Keep in mind I'm not trying debate anything with you here. My interest in opening this discussion with you was to solicit your opinion on the physiology of green eyes. What I mean by this is whether or not you thought there was anything special about that color, as you do seem quite taken...
  10. R

    Human eye pigmentation

    Thanks for the reply. Since I asked for some of your time, I spent a little time looking online for the article I mentioned. No luck yet, but I did find some that I give below relevant to your points => Here's a link to a paper on Vit-D and retinal tumor suppresion...
  11. R

    Human eye pigmentation

    Oops, I forgot about that. I may not be able to find it, it's something I read about 2 years ago, it was a paper in a British physiology journal. That's all I remember, not much to go on. But either way I'm interested in your opinion about green eyes. This thread showed me that there is...
  12. R

    Human eye pigmentation

    I ask because I think it may have something to do with lightning flash photoprotection, in addition to to sunlight photoprotection. Remember, back in the evolutionary day it wasn't easy to find shelter from sudden storms.
  13. R

    Human eye pigmentation

    Monique, obviously you have an interest in green eyes. I'm curious, do you find the explanation given in this thread lacking? If so, do you have your own explanation?
  14. R

    Atom self capacitance

    Yes, the JE is all about the phenomena of electrons "tunneling" through a thin insulator sandwiched between 2 superconductors, so a junction is needed. The current is definitely "across/through" the insulator because DC currents can be produced as opposed to "in and out" as could be argued if...
  15. R

    Atom self capacitance

    I don't see the junction anywhere in your setup. The JE requires a junction. Of course an AC magnetic field would induce an AC current even in a superconducting loop. You didn't state what kind of magnetic field was used in your setup.
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