Horological Journal [2010] - The official Organ of the British Horological Institute, :: Number of documents found: 2
(17744) The Harrison Project - Analysis of the Escapement
- Author: Johnson K. A. :: April Year Vol (No) Month (or Chapter/Auction item): :: Pages: 170 - 176
- Comments and/or Abstract > Available online to current members of BHI
(15029) Towards a Ptolemaic Orrery
- Author: Martin Stuart :: June issue Year Vol (No) Month (or Chapter/Auction item): :: Pages: 266-271
- Comments and/or Abstract > An article in HJ outlining a plan to build a Ptomaic orrery, has shematics and teeth counts, uses epycyclic gears