Recent content by Rafa_El

  1. Rafa_El

    Crank Generator: How Much Copper Wound Needed for 3V Output?

    Any idea how much it can produce?
  2. Rafa_El

    Crank Generator: How Much Copper Wound Needed for 3V Output?

    http://www.arvindguptatoys.com/toys/crank%20generator.html I view at that page. And want to try it, but how much copper wound i needed to produce a 3v output? The instruction said it was 400 wound but how long?
  3. Rafa_El

    Which cognitive skills are best developed early?

    I have simple opinion. "Memorize everything" skills. Like photography skills
  4. Rafa_El

    Why i have headaches when using new glasess

    I have cylinders 0.25 but i feel dizzy when they add that to my
  5. Rafa_El

    Why i have headaches when using new glasess

    And how about your friend? Did he/she get second presribction?
  6. Rafa_El

    Why i have headaches when using new glasess

    Why i encounter it? I have been changing my glasses today. Google said it was because eyestrain "asthenopia" thag happen in eye lens. But i want to ask some real opinion not just a description. Have you ever encounter it too? How long it occurred ?
  7. Rafa_El

    Is Boredom Linked to Increased Sleep and Dream Stimulation?

    Fair usage percentage. That is an acronym i made for my brain limit
  8. Rafa_El

    Why proteins and DNA aren't organelles?

    I agree with that statement. I interprete organelle as the organ of the cells, maybe the DNA and RNA is the part of the cells but it has nothing to than carry the template and transcript and translate it to form a new cells. When the organelle are needed for doing 3 major procesess...
  9. Rafa_El

    Is Boredom Linked to Increased Sleep and Dream Stimulation?

    Yep because brain have a limit like FUP in my opinion
  10. Rafa_El

    Is Boredom Linked to Increased Sleep and Dream Stimulation?

    Same here. But i have speculation when i sleep my brain activity are decreased because it only control body autonom function not think external problems such as homework. I thought sleeping is more lovely because it cure tired brain caused by external problems
  11. Rafa_El

    Do cells in the body stay in one place once they have found their position?

    Well my opinion if the cell fits the place because it was functioned to fit in there, then the cells will stay. Correct me if I'm wrong
  12. Rafa_El

    Relative Acceleration - Particle and Wedge

    Btw i want to see your textbook about it. Maybe i can conclude something
  13. Rafa_El

    Relative Acceleration - Particle and Wedge

    well i need to work on it and hope i get the derivative
  14. Rafa_El

    Relative Acceleration - Particle and Wedge

    And based on your question i think it ask amount of vertical force which mean against the gravity mean Fy= xN.sin○ correcte if I'm wrong
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