Ultracold Neutrons is a guide to a fascinating topic. It describes how a simple new idea in experimental neutron physics has changed the landscape of what is often called 'fundamental physics.' Ultracold neutrons (UCNs) are neutrons moving at the low speed of a bicycle rider. They were produced for the first time 50 years ago (in 1968) and are distinguished from ordinary neutrons with much higher energies by their ability to be confined in 'neutron bottles' for durations up to several hundred seconds. This is possible since they are reflected back and forth from the container walls many thousands of times with very little loss. As a result of these long observation times, their properties and interactions with the environment can be studied with superb precision.Directed towards a general readership, this book is an excellent introduction to a field of research that is not highly specialized but touches on many aspects of our physical world, classical as well as quantum mechanical.

In Duty Free Art, filmmaker and writer Hito Steyerl wonders how we can appreciate, or even make art, in the present age. What can we do when arms manufacturers sponsor museums, and some of the world's most valuable artworks are used as a fictional currency in a global futures market that has nothing to do with the work itself? Can we distinguish between creativity and the digital white noise that bombards our everyday lives? Exploring artefacts as diverse as video games, Wikileaks files, the proliferation of spam, and political actions, she exposes the paradoxes within globalization, political economies, visual culture, and the status of art production.