Marcello Colozzo 
The photoelectric effect 

In 1900
Max Planck provided the first step by introducing quantization in the processes of absorption and emission of energy by matter. Five years later,
Einstein went one step further, demonstrating that quantization is also present in the propagation of an electromagnetic field, so it is an intrinsic component of an electromagnetic field. In other words, he introduced the concept of ‘photon’.




Marcello Colozzo , a graduate in Physics, has been involved in online teaching of Mathematics and Physics since 2008 through the Extra Byte website where ‘simulations’ are performed in the Mathematica computing environment. In recent years he has published various articles on mathematical physics and collaborates with the Electronic Open Source magazine. An avid reader of cyberpunk fiction, he has attempted to transition into ‘cyber writer’ status by publishing various anthologies of short stories.