Recent content by copper-head

  1. copper-head

    Programs Can i get a masters of engineering with a physics degree?

    You're talking to one right now. BS in Math and Physics MS in Physics MA in Electric Vehicle Engineering
  2. copper-head

    B How to calculate the uncertainity errors

    Hi there. I would like to ask you about your grasp of computing uncertainties in general. Are these experimental data points that you are using?
  3. copper-head

    Asymmetric Carbon

    Hi Gracy, It would help if you would let us know what level class this is for. The explanation level should greatly depend on that.
  4. copper-head

    Thermal expansion over a large temperature range

    Most thermodynamics formulas were worked out in Kelvin and hence you should either look for the modified version in Celsius or simply convert your temperatures to Kelvin. As for the expansion coefficient, the accuracy of the values becomes more important (over the averaged one) the smaller the...
  5. copper-head

    Gauging the amount of Lignin in biomass
  6. copper-head

    Gauging the amount of Lignin in biomass

    I am looking for a way to measure out the amount of lignin in a given forest waste. Does anyone have any insight?
  7. copper-head

    XRD for grain size measurement

    There are a few books out there, one of my favorites is Solid State Physics by Rook and Hall. Explains the concept of XRD and how to effectively use the Scherrer equation. Diffraction can inform you on a lot more than grain size. Also you can try this...
  8. copper-head

    PV battery potential... need help coming up with experiment

    This is not enough info to establish if it the observed phenomena is indeed stored charges in an electric field (capacitance) or a simple "fluke". As you stated you need tests to establish that, one good way to go about it is to have a cycler. It would also help if we know what your electrodes...
  9. copper-head

    Hazardous substances

    Tried and true. Wrap it around a beaker and place it in a vacuum over for an hour = disaster. On the other hand, do the same next to a steam source and slippage and peeling starts to occur.
  10. copper-head

    Ultrasonic extraction of essential oil from ginger

    I think you'd need to provide some description of the experiment and what you are hoping to achieve.
  11. copper-head

    Hazardous substances

    Other factors play an important role in how well this system works: Ambient pressure and most importantly humidity. Paraffin starts misbehaving a couple of hours after being exposed to an extremely dry atmosphere and its surface starts to deteriorate. Small dust particle of the surface between...
  12. copper-head

    Making Carbon pellets with PVA

    If anyone is interested, here's a possible answer: PVA will not react with Carbon at 300 degree. The resistivity of PVA will play a minimal role in over all conductivity of the pellet if its presence is limited to <2%.
  13. copper-head

    Making Carbon pellets with PVA

    Hey there. I am making Carbon pellets using polyvinyl alcohol as a binder to help shape the pellets. I would like to measure the pellet's conductivity without being hindered or influence by the conductivity of the PVA. One way to do it is to heat the pellets to 300 degrees and evaporate the PVA...
  14. copper-head

    Angular velocity of a rod - translational KE?

    Quick question. How familiar are you with Lagrangian mechanics?
  15. copper-head

    Freeze drying Phosphoric acid

    AN Update: Contrary to my expectations, it worked! the gooey phosphoric acid soaked material turned into powder 4 days later. If anyone is interested in the vacuum chamber schematics, let me know.