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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: refraction
From: Chuck Taylor
Date: 2007 Jan 5, 09:11 -0800
From: Chuck Taylor
Date: 2007 Jan 5, 09:11 -0800
--- Alexandre E Eremenko wrote: >... The law says that the ratio of sines of > the two angles is constant. The problem is that the > Greeks did not have sines! Sines were invented by > the Arabs some time in VIII century. It would appear that a Hindu by the name of ryabha a (476-550 AD) wrote about sines before that. http://www.reference.com/browse/wiki/Aryabhata Best regards, Chuck Taylor 48 degrees N 122 degrees W __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com o.com --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
