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ChrisGyver

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Everything posted by ChrisGyver

  1. Hi everyone ! I'm looking for some evidence from people who works in the micromechanics. In order to know about what products are you working on ? good opportunities ?
  2. Hi, You should have a look on this link. http://www.voip-info.org/wiki/view/VOIP+Security.
  3. ok thanks for your replies. I'll come back to you if i need more advices.
  4. I use the iron bar to wind the coil. As I saw from some examples about this experiment. So, I only use the potentiometer, a larger coil and the magnet without the iron bar.
  5. Alright, I got it. I said a mistake. I confused. Regarding the non polarized magnets. That's some objets such as an iron bar which can become a magnet for a short time, when it's in contact with the magnet (Sorry I'm not able to find the link that deal with that issue). In fact, I can't know if my projects work. So, I wondered if my magnet is bad. But it's okay. And now, I want to know if my experiment work. So, what I can do ? I think about oscilloscope but I don't have one. Are they another solutions ?
  6. Hi everyone, You should try the website "khanacademy". I used it for understanding differential equations second order. And, In my view it's good website.
  7. Hi everyone , Are there any way to reconize a polarized magnet ? I ask this question because I try to make a little experiment. Make a current with a coil, potentiometer and magnet. Anyway, the schematic is joined with this topic. So, your replies are welcome. ( Sorry if my english is bad).
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