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Ganci S.,Studio di Catalogazione e Conservazione Strumenti Scientifici
Physics Education | Year: 2011

This paper describes a set of simple experiments with a very low cost using a notebook as a measuring instrument without external hardware. The major purpose is to provide demonstration experiments for schools with very low budgets. © IOP Publishing Ltd. Source


Ganci S.,Studio di Catalogazione e Conservazione Strumenti Scientifici
Optik | Year: 2014

The attempts to justify Kirchhoff integral formula as some a kind of "rigorous" solution to diffraction scalar problems was an interesting field of research in the Scalar Theory of Diffraction. This paper describes a curious agreement (aside from an additive constant and a scaling factor) between Kirchhoff limiting values and the rigorous solution to the half plane problem given by Sommerfeld. © 2013 Elsevier GmbH. Source


Ganci S.,Studio di Catalogazione e Conservazione Strumenti Scientifici
Optik | Year: 2012

In the celebrated Sommerfeld's rigorous solution to the half-plane problem, a condition fully demonstrated states that the edge neither radiates nor absorb energy. So, the well known Grimaldi's phenomenon, the shining of the edge, is claimed as an "optical illusion" (literally optische Täuschung) in his original paper. This paper deals with an apparent contradiction about this matter showing experimentally that the edge acts as a real source. © 2011 Elsevier GmbH. Source


Ganci S.,Studio di Catalogazione e Conservazione Strumenti Scientifici
Physics Education | Year: 2016

A simple setup was designed for a 'time-of-flight' measurement of the sound speed in a metal bar. The experiment requires low cost components and is very simple to understand by students. A good use of it is as a demonstration experiment. © 2016 IOP Publishing Ltd. Source


Ganci S.,Studio di Catalogazione e Conservazione Strumenti Scientifici
Physics Education | Year: 2016

A simple setup is designed to investigate a time-of-flight measurement of the speed of sound in water. This experiment only requires low cost components and is also very simple to understand by students. It could be easily used as a demonstration experiment. © 2016 IOP Publishing Ltd. Source

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