Anno XLV - n.2 - aprile/giugno 2012 In recent years the knowledge levels in science of freshmen dropped constantly in Italy and in other countries. This might be because the excess of information in today?s secondary school textbooks makes identifying and mastering the important concepts difficult. Results found by different groups that examined pre-university textbooks in a number of different countries are reported. […]
Anno XXXV - n.4 - ottobre/dicembre 2002 Beta and gamma rays are able to penetrate into solid bodies. This property of radioactivity can be verified in a very simple and efficacious manner, making an experiment, even in a school laboratory, with poor matter. […]
Anno XXVIII - n.3 - luglio/settembre 1995 This article deals how to represent the experimental data with their absolute error with Lotus 123 […]
Anno XXXV - n.4 - ottobre/dicembre 2002 We propose here a simple realisation of an anemometer, using recycling materials (except for a small milliamperometer). The calibration of the instrument was obtained by means of a ‘fluidometric pendulum’, following the idea proposed by the great hydraulic engineer Domenico Guglielmini (1655-1710) at the end of the 17th century. […]