Is anyone familiar with the unpublished work of G.F. Dodwell? Dodwell made a study of gnomons, and in particular of the recordings of the shadows cast by them. Gnomons can be used with considerable accuracy to determine the latitude of the observer (the angle between the gnomon and the line which bisects the longest and shortest shadows) or Earth's tilt (the angle between the longest shadow and the line which bisects the longest and shortest shadows). He compared the tilt from "gnomon measurements" with the formula of Simon Newcomb, and found that as they got more ancient the departure between the two became more & more pronounced.
Is anyone aware of Dodwell's unpublished book, or any reviews of his findings? Ian Tresman, Editor/Compiler SIS Internet Digest Society for Interdisciplinary Studies (SIS) 9 Ashdown Drive, Borehamwood, Herts. WD6 4LZ. United Kingdom. Tel: +44 181 953 7722. Fax: 905 1879. email [EMAIL PROTECTED] World Wide Web: http://www.knowledge.co.uk/xxx/cat/sis/