What is the earliest mention of use of spyglass by seafarers? What is the earliest mention of use of spyglass by seafarers? How fast it became a commonly used nautical instrument? UPDATE: The most interesting thing I've found so far is in E Sluiter, The first known telescopes carried to America, Asia and the Arctic, 1614-39 Journal for the History of Astronomy, 28:2 (1997) p 141
contemporary history - Why was Apple not able to compete with Microsoft . . . He acquired a CP M-knock off OS, 86-DOS, for an absurdly low sum, and then used the product he had essentially obtained for free to undercut Digital Research's CP M Windows Internet Explorer was originally licensed to Microsoft by Spyglass for a royalty on every copy sold