Cloud Wakes on the Lee Side of St. Helena Island : Image of the Day: Mountain peaks slice through the clouds and air masses, creating Von Karman Vortices.
Source: nasa.gov
Good read. Animal Liberation by Peter Singer. A powerful book on animal rights written 40 years ago (updated 20 years ago and re-issued recently with an introduction by Yuval Hariri) and having stood the test of time and debate. It is called 'the bible' of the animal rights movement and rightly so ......
Source: amazon.co.uk