21.1 An electrical simple harmonic oscillator

While I was compiling the index to this blog, I noticed that I had written several posts about mechanical simple harmonic oscillators but hadn’t written anything about electrical simple harmonic oscillators– the subject of this post. A simple harmonic oscillator is a system that oscillates indefinitely by exchanging potential and kinetic energy. In a real… Continue reading 21.1 An electrical simple harmonic oscillator

20.35 Incompressible and compressible fluid flow

In post 17.15, we saw how fluid flow could be explained by two equations – Bernoulli’s equation (conservation of mechanical energy) and a continuity equation (conservation of mass). But, conservation of mechanical energy assumes that the viscosity of the fluid is negligible because viscosity dissipates mechanical energy (post 17.17) and so is similar to friction… Continue reading 20.35 Incompressible and compressible fluid flow