We all wash ourselves teeth with the toothpastebut how many people know what it’s really for? Perhaps not everyone knows what toothpaste contains fluorinewhich forms a protective shield on the tooth enamel. This shield was born from one chemical reaction very precise, which transforms the hydroxyapatite of the enamel in …
Why the Moon turns red during a lunar eclipse and when it happens: It’s the Rayleigh optical phenomenon
Photo of a full moon taken from Washington DC, USA. The combined effect of atmospheric aerosols and the path of moonlight through the atmosphere causes a “removal” (scattering in jargon) of the blue component of visible light, which gives the Moon its characteristic reddish color. Credits: NASA/Bill Ingalls. The Moon …
Who are the “Dublinists” and why has the repatriation issue reignited tension between Northern and Southern Europe
“Dublinarians” are asylum seekers who entered the EU through one country and then moved to another EU state where they applied for asylum. According to numerous Italian media, several Northern European countries are ready to “send back to Italy” thousands of asylum seekers: these are the so-called “Dubliners”, i asylum …
