<![CDATA[Opticks by Isaac Newton]]> http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton en-us © 2026 LoyalBooks.com Loyal Books clean Loyal Books feeds@loyalbooks.com http://www.loyalbooks.com/image/feed/Opticks.jpg <![CDATA[Opticks by Isaac Newton]]> http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton 43,200 <![CDATA[00 Titlepage and Advertisements]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_00_newton_64kb.mp3 Fri, 02 Jan 2026 00:00:00 +0000 5:33 <![CDATA[01 Book I Part I - Definitions]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_01_newton_64kb.mp3 Thu, 01 Jan 2026 00:00:00 +0000 6:20 <![CDATA[02 Book I Part I - Axioms]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_02_newton_64kb.mp3 Wed, 31 Dec 2025 00:00:00 +0000 23:29 <![CDATA[03 Book I Part I - Proposition I]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_03_newton_64kb.mp3 Tue, 30 Dec 2025 00:00:00 +0000 11:32 <![CDATA[04 Book I Part I - Proposition II, Section 1]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_04_newton_64kb.mp3 Mon, 29 Dec 2025 00:00:00 +0000 12:25 <![CDATA[05 Book I Part I - Proposition II, Section 2]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_05_newton_64kb.mp3 Sun, 28 Dec 2025 00:00:00 +0000 17:16 <![CDATA[06 Book I Part I - Proposition II, Section 3]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_06_newton_64kb.mp3 Sat, 27 Dec 2025 00:00:00 +0000 20:34 <![CDATA[07 Book I Part I - Proposition II, Section 4]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_07_newton_64kb.mp3 Fri, 26 Dec 2025 00:00:00 +0000 12:29 <![CDATA[08 Book I Part I - Propositions III - IV]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_08_newton_64kb.mp3 Thu, 25 Dec 2025 00:00:00 +0000 17:01 <![CDATA[09 Book I Part I - Propositions V - VI]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_09_newton_64kb.mp3 Wed, 24 Dec 2025 00:00:00 +0000 17:47 <![CDATA[10 Book I Part I - Proposition VII, Section 1]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_10_newton_64kb.mp3 Tue, 23 Dec 2025 00:00:00 +0000 23:35 <![CDATA[11 Book I Part I - Proposition VII, Section 2]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_11_newton_64kb.mp3 Mon, 22 Dec 2025 00:00:00 +0000 23:45 <![CDATA[12 Book I Part I - Proposition VIII]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_12_newton_64kb.mp3 Sun, 21 Dec 2025 00:00:00 +0000 6:22 <![CDATA[13 Book I Part II - Propositions I - II]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_13_newton_64kb.mp3 Sat, 20 Dec 2025 00:00:00 +0000 16:09 <![CDATA[14 Book I Part II - Definition and Propositions III - IV]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_14_newton_64kb.mp3 Fri, 19 Dec 2025 00:00:00 +0000 16:55 <![CDATA[15 Book I Part II - Proposition V]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_15_newton_64kb.mp3 Thu, 18 Dec 2025 00:00:00 +0000 29:58 <![CDATA[16 Book I Part II - Propositions VI - VIII]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_16_newton_64kb.mp3 Wed, 17 Dec 2025 00:00:00 +0000 23:18 <![CDATA[17 Book I Part II - Proposition IX]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_17_newton_64kb.mp3 Tue, 16 Dec 2025 00:00:00 +0000 18:02 <![CDATA[18 Book I Part II - Propositions X - XI]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_18_newton_64kb.mp3 Mon, 15 Dec 2025 00:00:00 +0000 19:16 <![CDATA[19 Book II Part I - Observations 1 - 6]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_19_newton_64kb.mp3 Sun, 14 Dec 2025 00:00:00 +0000 18:12 <![CDATA[20 Book II Part I - Observations 7 - 16]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_20_newton_64kb.mp3 Sat, 13 Dec 2025 00:00:00 +0000 17:58 <![CDATA[21 Book II Part I - Observations 17 - 24]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_21_newton_64kb.mp3 Fri, 12 Dec 2025 00:00:00 +0000 18:32 <![CDATA[22 Book II Part II - Section 1]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_22_newton_64kb.mp3 Thu, 11 Dec 2025 00:00:00 +0000 17:23 <![CDATA[23 Book II Part II - Section 2]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_23_newton_64kb.mp3 Wed, 10 Dec 2025 00:00:00 +0000 18:53 <![CDATA[24 Book II Part III - Propositions I - VI]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_24_newton_64kb.mp3 Tue, 09 Dec 2025 00:00:00 +0000 17:12 <![CDATA[25 Book II Part III - Proposition VII]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_25_newton_64kb.mp3 Mon, 08 Dec 2025 00:00:00 +0000 13:32 <![CDATA[26 Book II Part III - Propositions VIII - IX]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_26_newton_64kb.mp3 Sun, 07 Dec 2025 00:00:00 +0000 13:52 <![CDATA[27 Book II Part III - Propositions X - XI]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_27_newton_64kb.mp3 Sat, 06 Dec 2025 00:00:00 +0000 32:26 <![CDATA[28 Book II Part III - Propositions XII - XX]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_28_newton_64kb.mp3 Fri, 05 Dec 2025 00:00:00 +0000 19:17 <![CDATA[29 Book II Part IV - Observations 1 - 6]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_29_newton_64kb.mp3 Thu, 04 Dec 2025 00:00:00 +0000 14:13 <![CDATA[30 Book II Part IV - Observations 7 - 9]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_30_newton_64kb.mp3 Wed, 03 Dec 2025 00:00:00 +0000 20:03 <![CDATA[31 Book II Part IV - Observations 10 - 13]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_31_newton_64kb.mp3 Tue, 02 Dec 2025 00:00:00 +0000 14:09 <![CDATA[32 Book III Part I - Observations 1 - 5]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_32_newton_64kb.mp3 Mon, 01 Dec 2025 00:00:00 +0000 19:16 <![CDATA[33 Book III Part I - Observations 6 - 11]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_33_newton_64kb.mp3 Sun, 30 Nov 2025 00:00:00 +0000 24:39 <![CDATA[34 Book III Part I - Queries 1 - 15]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_34_newton_64kb.mp3 Sat, 29 Nov 2025 00:00:00 +0000 15:43 <![CDATA[35 Book III Part 1 - Queries 16 - 24]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_35_newton_64kb.mp3 Fri, 28 Nov 2025 00:00:00 +0000 15:05 <![CDATA[36 Book III Part I - Queries 25 - 27]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_36_newton_64kb.mp3 Thu, 27 Nov 2025 00:00:00 +0000 14:45 <![CDATA[37 Book III Part I - Queries 28 - 29]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_37_newton_64kb.mp3 Wed, 26 Nov 2025 00:00:00 +0000 23:55 <![CDATA[38 Book III Part I - Queries 30 - 31]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_38_newton_64kb.mp3 Tue, 25 Nov 2025 00:00:00 +0000 24:22 <![CDATA[39 Book III Part I - Query 31 cont.]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_39_newton_64kb.mp3 Mon, 24 Nov 2025 00:00:00 +0000 16:03 <![CDATA[40 Book III Part I - Query 31 cont.]]> More great books at LoyalBooks.com More great books at LoyalBooks.com http://www.loyalbooks.com/book/Opticks-by-Sir-Isaac-Newton http://www.archive.org/download/opticks_1203_librivox/opticks_40_newton_64kb.mp3 Sun, 23 Nov 2025 00:00:00 +0000 21:43