Austnaberg, Hans, Shepherds and Demons

Algorithms, nymphs, and shepherds

Computability and complexity are the two major lines along which the science of algorithms has evolved; but the same concepts guide many human activities. We try to catch some glimpses of the connections between these two worlds, to meet the expectations of the audience. We will encounter nymphs and universal Turing Machines, ancient traditions and randomized procedures, all tending to the same...

On Demons and Oracles

Implementing Demons and Ratchets

Experimental results show that ratchets may be implemented in semiconductor and chemical systems, bypassing the second law and opening up huge gains in energy production. This paper summarizes or describes experiments and results on systems that effect demons and ratchets operating in chemical or electrical domains. One creates temperature differences that can be harvested by a heat engine. A s...

Fabulous beasts and demons

Mythical beasts and fabulous animals have always proved to be a popular theme and many books describing them have already appeared. This one, however, is probably the largest, and certainly the most sumptuously illustrated. It also deals more adequately with the rich oriental aspects of the theme than most of its predecessors. Written by a professor of oriental archaeology in the University of ...

Growth Disorders in Young German Shepherds

Rapid Growth Problems The problems discussed here occur in the younger, rapidly growing German Shepherd. As German Shepherds are far more angulated than most breeds, they can appear to be having serious problems when in many cases they are going through fairly normal stages of development. Common problems are: 1. Excessive looseness of hocks, can be secondary to excessive depth of hindquarter a...