9 citations · 11 across the 5 of their papers we have counts for
5 papers
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…
Demonstrations of magnetic phenomena: Measuring the air permeablity using tablets
Vitor O. M. Lara, Dayanne F. Amaral, Daiara Faria +1
We use a tablet to determine experimentally the dependencies of the magnetic field (B) on the electrical current and on the axial distance from a coil (z). Our data shows a good pr…
Demonstration of the Inverse Square Law with the aid of a Tablet/smartphone
Leonardo Pereira Vieira, Vitor de Oliveira Moraes Lara, Dayanne Fernandes Amaral
In this paper we show how to obtain the Inverse-square law of the distance to the light intensity emitted from a small source in a simple, fast and with good precision way. With th…
Standing Sound Waves in a tube: Approach analysis \& sugestions
L. P. Vieira, D. F. Amaral, V. O. M. Lara
In this paper we attempt to present some questions with respect to the approach used in some brazilian mid-level textbooks on the topic of stationary sound waves in tubes. In addit…
Macro photography with a tablet: applications on Science Teaching
Leonardo Pereira Vieira, Vitor de Oliveira Moraes Lara
In this work we present a simple way to get Macro photography (enlarged photographs) using a tablet or phone. We initially discuss the technique, which is essentially the accommoda…