Earth’s core may be deforming: asymmetry is unexplained

The Earth’s core is growing asymmetrically and we don’t know why. We are at a turning point for the study of Earth’s magnetism Every year the iron core of planet Earth expands by about a millimeter: this is due to the cooling of the deepest layers of the Earth’s crust, which lose heat and become … Read more

How to choose between iPad, iPad mini, iPad Air and iPad Pro

9.7-inch iPad, iPad Mini, iPad Air and iPad Pro: here’s a guide to choosing the Apple tablet that best meets your needs About a couple of weeks ago, Apple revamped its iPad range by introducing its latest tablets: the iPad Mini 5 and iPad Air 2019. Now if you want to buy an iPad you … Read more