Recent content by kenw232

  1. K

    How Can I Shield My Circuit from EMI Caused by a High-Voltage Pulse Transformer?

    I hit a 1:40 ratio pulse transformer with a 1000V (100mA) sawtooth pulse and it creates a spark gap. Unfortunately it also creates a lot of EMI and my micro-controller and power supply has problems because of it. How do I stop this? How do I know what the wavelength is of the EMI field so I...
  2. K

    Undergrad Particle acceleration and eV's question from a newbie

    I have a general question on particle acceleration and eV's. Apparently the amount of electron Volts required to ionize a hydrogen atom (that is, remove the electron from the proton), is 3.4 eV (When N = 2, the energy level is -13.6 eV / 2^2 = -3.4 eV). if initially the atom is in the state...
  3. K

    Explain my capacitor discharge math discrepancy

    Yes, but not 25W worth (35W from #1 - 10W from #3). Specially considering 2 and 3 derive their answer straight from the waveform itself, so they only care about the wave, all loss from T1 is already accounted for there yet the wattage's turn out be completely different. Someone has to know why.
  4. K

    Explain my capacitor discharge math discrepancy

    I'm trying to cross check mathematically the mA being discharged from a .33uF capacitor which is charged to about 1200V by a circuit (see single_circuit.jpg) which is provided 37W of power to it. I do it three ways. 1) The circuit draws 35W total. 13V @ 5A = 65W. But the power supply drops...
  5. K

    Keeping a Paramecium Culture: Tips and Tricks for Success

    Thanks, I've seen the first two links there already but not the last.
  6. K

    Keeping a Paramecium Culture: Tips and Tricks for Success

    I would like to keep a culture of Paramecium caudatum going for a while. does anyone know the best or easiest way to keep these guys multiplying and happy?
  7. K

    Identifying Green Mold on Cheese: A Microscopic Approach

    What is the dark green mold on old white cheese called? is that penicillin?
  8. K

    Calculating Current from a Capacitor Bank: Tolerate My Ignorance Wise Ones

    Tolerate my ignorance wise ones. I'm trying to get a simple common sense explanation to figure out how much current I can get from a capacitor bank and for how long. I read that 1 Farad is 1 Ampere second per Volt. So does this mean that a 1 farad capacitor charged with 1V will dissipate...