Weblog on Physics

 Come si valutano le incertezze sperimentali? I cosiddetti “errori sperimentali” sono di due tipi. Ci sono gli errori sistematici dovuti a...

An article by L A Geddes and L.E. Geddes, explains how Georg Ohm discovered the Ohm’s law. As the authors tell, Georg Ohm lived at a time wh...

"In addition to their ground state, diamond structure, Si, Ge and Sn can form crystalline solids called clathrates. As in the diamond s...

Physics - Chance of thunder—and gamma-ray flashes In a paper appearing in Physical Review Letters, scientists in Italy (Tavani et al.) pre...

Negative refraction refers to the electromagnetic phenomenon where a light ray is refracted at an interface in the reverse sense to that nor...

"Poisson's ratio, also called the Poisson coefficient, is the ratio of transverse contraction strain to longitudinal extension stra...