18 citations · 19 across the 3 of their papers we have counts for
3 papers
Galileo's speedometer: an approach to the concept of instantaneous velocity
Carlos Eduardo Aguiar, Marta F. Barroso, Penha Maria C. Dias +1
Difficulties presented by students on the concept of instantaneous velocity are well known. This is in part due to instantaneous speed being often defined in terms of the notion of…
The sound of the udu
Leonardo Pereira Vieira, Carlos Eduardo Aguiar
The udu is a traditional Nigerian percussion instrument that can be thought of as a Helmholtz resonator with two apertures. We use a simple two-particle mechanical analogue to stud…
Using the Sound Card as a Timer
Carlos Eduardo Aguiar, Marta Maximo Pereira
Experiments in mechanics can often be timed by the sounds they produce. In such cases, digital audio recordings provide a simple way of measuring time intervals with an accuracy co…