Hi, I am investigating the effect of changing the spring constant on the time period of Simple Harmonic Oscillations. My first doubt regards one of my control variables. I listed that I should try and maintain air humidity constant, due to the fact it affects air resistance and, therefore damping. Obviously, I don't have absolute control over the humidity in the air but how could I try to maintain it constant? Maintaining the relative humidity the same Any ideas? Thanks, Peter G.