Earth's Magnetic Field
by Tim Brown/science Photo Library
Title
Earth's Magnetic Field
Artist
Tim Brown/science Photo Library
Medium
Photograph - Photograph
Description
Earth's magnetic field, illustration. This magnetic field (blue lines and blue circles) is generated by eddies (red circles) in the liquid core (centre), which in turn are caused by the rotation of the Earth (red circle at top). The core is about 3488 kilometres in radius. The outer core (yellow-orange) is a liquid layer of iron and nickel, extending downwards for 2210 kilometres. The inner core (centre) is a solid sphere of iron-nickel alloy, with a radius of around 1278 kilometres. The Earth's magnetic field extends outwards into space for tens of thousands of kilometres, protecting the planet from high-energy radiation from the Sun.
Uploaded
October 19th, 2019
Embed
Share
Comments
There are no comments for Earth's Magnetic Field. Click here to post the first comment.