Recent content by joo

  1. J

    Master of theoretical physics in Europe: ETH vs. ENS vs. LMU

    At the moment I find complex systems and thermodynamics interesting. Biophysics seem nice too. Do you know some good places for these in Europe ?
  2. J

    Master of theoretical physics in Europe: ETH vs. ENS vs. LMU

    Could you please elaborate on their programmes and/or how they compare against one another ? I seem to be interested in the not-so-much-quantum part of theoretical physics, but any input will be very appreciated. *ETH Zurich *Ecole Normale Superieure *Ludwig Maximilian University
  3. J

    Undergrad Why is the solution in the form of Ce^kx ?

    Why is the solution to linear differential equations with constant coefficients sought in the form of Ce^kx ? I have heard that there is linear algebra involded here. Could you please elaborate on this ?
  4. J

    Intuition for the second spatial derivative

    Hello ! Could you please give me some kind of intuition of the physical meaning of the second spatial derivative ? I see it all the time, but I have difficulty comprehending it to the same level I have done with the second time derivative. Thanks !
  5. J

    Undergrad Where does the spring's energy go ?

    I can't get my head around this problem : Consider a stretched spring, fixed by string at the both ends to a bottle. The bottle is filled with a certain acid, that only eats away the spring and not the string. Assume the ideal conditions - the whole spring gets dissolved completely at the...
  6. J

    High School Solving Logarithmic Equations: Analytical Method

    Thank you for your replies ! I'll stick to the graphical solving for now then, since I will have no access to any calculators during my tests.
  7. J

    High School Solving Logarithmic Equations: Analytical Method

    What I meant was x=(2^x)/14, but I guess that doesn't really change the principle. Thanks, I'll take a look at it, although I find myself doubtful.
  8. J

    High School Solving Logarithmic Equations: Analytical Method

    What is the analytical method for solving log. eqs., like x=2^x/14 ? In high school they only teach us the graphical approach =/ joo