In the 2014/2015 school year, the Respighi Scientific High School started the “Fare Fisica: Planck 2.0” (Making Physics: Planck 2.0) project, aiming to challenge our best students thanks to the use of the laboratory. For this purpose we chose a modern physics experiment: the measurement of the Planck constant by means of the characteristic voltage – current of a LED. […]
After describing the working principles of the crystal radio, the author puts them into practice designing, assembling and testing a simple radio system. Didactic suggestions are given. […]
The so called crystal radio is a simple receiver that can generate strong interest and emotions. Starting with the improvised ‘Blue Gillette blade’ detector used in the mythical ‘foxhole radios’ by the American soldiers during WWII, we explore some new and unusual detectors that can be assembled ‘in the kitchen’. […]
Can we assume that a good lab report should contain some typical features? This is an attempt to settle the question in the case of practical work based on hypothetical-deductive methods. […]
This paper is a summary of a project prepared by an Italian student for the final State exam of Liceo Scientifico. The aim of the work is to understand fluid friction and rolling resistance involved in cycling. A simple physical model has been developed and it has been subsequently compared with experimental data collected by a tachometer and a power meter. […]
This work proposes an example of experimental approach for the treatment of statistic matters for last classes of the secondary school. Through the construction of Galton’s machine, the validity of the central limit theorem has been shown and as the distribution of the random experimental data is described to the best by the Gauss’curve. […]
We present an experiment to measure the temperature dependence of magnetic susceptibility of a dia-magnetic material such as pyrolityc graphite. Pyrolityc graphite is a typical diamagnetic material and can levitate in a strong magnetic field. the levitation height was changed by varying the pyrolityc graphite temperature using a lighter. […]
This paper analyses an experimental method by which laws of angular magnification, for common optical instruments, are pointed out. Kepler’s and Galilei’s telescopes simple and compound microscopes are analysed with the aid of a TV camera and a monitor. Image sizes are measured on the monitor before and after instrument magnification; […]
A short history of the measurement of the velocity of light from Galileo to our days. with particular reference to Foucault’s method, which has been used in an experiment for didactic purpose. […]
Using an educational SPM driven by a PC that supports a VNC-server and a motorized webcam we set up an internet controlled RemoteLab SPM. Trained highschool students supervised by their teachers selected the sample to be analyzed, controlled the PC that drove the SPM and performed the measurements and the image analyses in remote mode. […]
Remotely controlled laboratories (RCL) allow a user to connect from place A to a real experiment carried out in place B. These experiments can be carried out without booking and without needing to download special software. Describing the details of an experiment we give an example of the working principle of this technology […]