Thermo-mechanical problems in induction heating of steel

We discuss a 3D model that is capable for describing mechanical deformations of steel through induction hardening processes. It consists of a reduced system of Maxwell's equations, the heat transfer equation and a system of equations describing the mechanical state of the steel workpiece. In a first step the model is applied to simulation of an axisymmetrical induction hardening device, which is a wide-spread industrial equipment. We present numerical results obtained for a steel tube hardening

Geoengineering and the Accusation of Hubris

Geoengineering aims at a large-scale manipulation of the planetary environment in order to counteract climate change. Different ethical worries concerning geoengineering have been formulated. Amongst these a core wrong is often believed to be captured by a certain character trait, namely hubris. The value of referring to the concept of hubris, however, is not at all clear. What exactly does this concept entail, and what is its merit in evaluating proposals of geoengineering? This paper analyses the concept of hubris. It then argues that referring to this concept does indeed add an important perspective to an evaluation of the various proposals for geoengineering