The speed of light is an important fundamental constant in physics, and so determining its
value is a common undergraduate laboratory experiment. Methods to measure the light …

An experiment for measuring the speed of light by measuring the distance between regularly
generated optical pulses is described. The experiment utilizes optical feedback from a …

According to the commonly accepted view, Galileo Galilei devised in 1638 an experiment
that seemed able to show that the velocity of light is finite. An analysis of archival material …

In this paper, we introduce two simple and inexpensive, yet quite accurate versions of the
well-known Foucault method for measuring the speed of light. In a compact footprint of just …

In college physics experiments, a pendulum is often applied to measure the moment of
inertia (J) of a rigid body. In this paper, we demonstrate a trifilar pendulum to determine not …

From an apparatus previously designed for measuring the Doppler shift using a rotating
mirror, an improved, versatile version was developed for speed of light demonstrations in a …

In a previous paper published in this journal (Ronzani et al 2008 Eur. J. Phys. 29 957), an
estimate of the light speed in air, obtained by measuring the time of flight of a pulsed laser …

In this paper, we introduce two simple and inexpensive versions of the well-known Foucault
method for measuring the speed of light. In a footprint of just 20 cm by 270 cm with readily …