Semiconductor Laser Experiment Sheet This document contains descriptions of a number of standard experiments which can be performed using the Semiconductor Laser. These cover the experimental determination of the velocity of light, the use of fibre optics and other classical experiments. Digital Coulombmeter Experiments This document contains description of a number of standard experiments and investigations which can be performed using the Digital Coulombmeter. These cover the theory of charge sharing, charging by induction, charge 'spooning', and other topics. 'g' by Freefall Experimental Notes This document contains descriptions of how to use our Millisecond Timer and Digital Millisecond Stopclock with the 'g' by freefall apparatus supplied by Griffin. It gives detailed descriptions and diagrams of how to set up the experiments and how to connect in each case to either the Millisecond Timer or the Digital Millisecond Stopclock.