Search:spherograph -> SPHEROGRAPH
spherograph
s p h e r o g r a p h hex:#115;#112;#104;#101;#114;#111;#103;#114;#97;#112;#104;
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- Spherograph - n. - An instrument for facilitating the practical use of spherics in navigation and astronomy, being constructed of two cardboards containing various circles, and turning upon each other in such a manner that any possible spherical triangle may be readily found, and the measures of the parts read off by inspection.