https://e-sygoing.link Latest links in the Instruments category en-us Sun, 24 May 2026 10:39:26 -0400 https://e-sygoing.link/link/5300324-the-airy-transit-circle Describes the modernization of the Greenwich Observatory. From the BBC History series. Thu, 25 Sep 2025 17:37:52 -0400 https://e-sygoing.link/go/5300324 https://e-sygoing.link/link/5300326-antique-telescopes An overview with photographs of many lesser known telescopes typical of their time. Sun, 02 Mar 2025 16:03:46 -0500 https://e-sygoing.link/go/5300326 https://e-sygoing.link/link/5300327-adler-planetarium-historical-collections Collection of instruments, past exhibitions, history department information. Tue, 03 Sep 2024 17:25:54 -0400 https://e-sygoing.link/go/5300327 https://e-sygoing.link/link/5300329-smithsonian-magazine-stars-in-their-eyes The exquisite telescopes crafted by Alvan Clark and his sons helped make the last half of the 19th century a golden age of astronomy. Mon, 19 Feb 2024 05:22:31 -0500 https://e-sygoing.link/go/5300329