Niven's Laws is also the title of a 1984 collection of Niven's short stories. Included in the 1989 collection N-Space are six laws titled Niven's Laws for Writers. They are: ... S.M. Stirling wrote: And a special acknowledgment to the author of Niven's Law: "There is a technical, literary term for those who mistake the opinions and beliefs of ...

A Stirling engine is a heat engine that is operated by the cyclic compression and expansion of air or other gas (the working fluid) between different temperatures, resulting in a net conversion of heat energy to mechanical work.. More specifically, the Stirling engine is a closed-cycle regenerative heat engine with a permanent gaseous working fluid. ...