Recent content by Oblef

  1. O

    High School Is Fire a Plasma? | Physics Debate

    There would be needed a high enough temperature to kick the electrons all the way of the gas, to create ions. I would assume a couple of thousand degrees C. probably 2-3000.
  2. O

    High School Is Fire a Plasma? | Physics Debate

    Oh thanks, nice experiment he made :D I'm writing my 3rd year assigntment on "light perceptions throughout history" in physics and history. I hope it's okay if I return to ask more questions some other day?
  3. O

    High School Is Fire a Plasma? | Physics Debate

    Sorry I'm not from an English speaking country. Is there something you don't understand? When I say that, I mean plasma like there also are gas, liquid and solid. That kind of plasma.
  4. O

    High School Is Fire a Plasma? | Physics Debate

    Hey everybody. I heard a physics professor at Berkeley say that normal fire (from a lighter) is plasma. My science teacher at high school says that it isn't. So my question is, is normal fire in state of plasma or not? Thanks.
  5. O

    Help with 3rd year assignment on light

    Alright, I've got a bit more focused now. I'm writing about the different interpretations/conceptions/perceptions of light throughout time. Any body know any literature on this subject? The old Greeks, Indians, medieval alchemist or Newtonian or modern conceptions?
  6. O

    Help with 3rd year assignment on light

    I come from Denmark. and there is 9 years of basic school + 1 year of kindergarten school. Then there are different kind of high school, the longest is called STX and is 3 years. After I graduate I will study at the Niels Bohr institute in Copenhagen. You probably know Niels Bohr, this is his...
  7. O

    Help with 3rd year assignment on light

    Any body?
  8. O

    Help with 3rd year assignment on light

    Hello all. I'm in my 3rd and final year in high school and the big 3rd year paper is coming up. I'm writing in physics (and history) and I have about light. The specific topic isn't decided yet and therefore I need some books to help me decide. This is were you come into the picture. I need...
  9. O

    Intensity of red laser vs blue laser

    I also think the intensity is given by the amplitude.. Just like volume in sound is given by it.
  10. O

    You're too much of a mathematician if

    omg I didn't understand it, thank God..!
  11. O

    Undergrad When you touch something there isn't really any physical contact

    I got my question answered before I believe, and that's all I wanted.
  12. O

    Undergrad When you touch something there isn't really any physical contact

    Django - yeah but what I meant by touching was just matter itself applying force to matter. Don't know how else to describe what I meant.. :/
  13. O

    Undergrad When you touch something there isn't really any physical contact

    Thank you :)
  14. O

    Undergrad When you touch something there isn't really any physical contact

    al right - Could you tell me about spin and what S = 1/2 means. Or is that to much to ask for? :)
  15. O

    Undergrad When you touch something there isn't really any physical contact

    Pythagorean - I completely agree with you, thank you. Nesk - What is a fermion?