  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 available laboratory items and a webcam, we
obtained $c=296720\pm3000$ km/s, and $c=302295\pm3000$ km/s, respectively, both
within less than a per cent of the defined value. The experiment also prepares
students to work with large amounts of data.

Optics;Physics Education