A simple check of Einstein – Smolukowskij law was performed. The observation and measurement of brownian motion is possible through a video recorder- television set. […]
We set a simple experiment, with didactic purpose, for the determination of the density of the air, applying the principle of Archimedes. The equipment required is very cheap and easy to be found. […]
The article describes a numerical method to determine the parameters of the linear regression when are present errors in both coordinates. […]
Quantum mechanics and other 20th century developments of physics hugely changed certain basic ideas of classical physics such as determinism, realism and locality. The paper examines the evolution of these ideas through the discussion of both ideal and actually performed experiments. […]
The deviation to the east of a falling body is examined in the hypothesis that the body is dropped at the equator and the distance fallen is small so that the variation of gravity with height and air resistance may be neglected. […]