Class practical: The demonstration models the process of sampling an analogue signal at regular intervals in order to encode...
Class practical: Students derive the wave equation, by closely observing ripples in a ripple tank.
The frequency of a visible photon is measured in terahertz ( 400–700 terahertz ). The energy of such photons is measured in...
The hand stroboscope is a disc of hardboard or card with a simple pivot at its centre, so that the disc can be kept spinning...
A model of colour perception, proposed in 1872 by Ewald Hering, argued colour vision involves two opponent pairs of colours...
Stories from Physics
Recognising and celebrating outstanding contributions to the field of physics education.