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Opticks cover

English Edition

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Opticks

English BooksWhale Edition by Isaac Newton

Newton’s classic experiments on light, color, prisms, reflection, refraction, and scientific method.

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Opticks

Opticks presents Newton’s investigations of light and color through prisms, lenses, reflection, refraction, diffraction, and famous queries about nature. It is a foundational public-domain science text for optics, physics, experiment, and the history of modern science.

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Table of contents

Inside this edition

  1. 01Full text
  2. 02OPTICKS:
  3. 03OR, A
  4. 04TREATISE
  5. 05OF THE
  6. 06OF
  7. 07LIGHT.
  8. 08LONDON:
  9. 09TITLE PAGE OF THE 1730 EDITION
  10. 10SIR ISAAC NEWTON'S ADVERTISEMENTS
  11. 11_I. N._
  12. 12_I. N._
  13. 13THE FIRST BOOK OF OPTICKS
  14. 14_PART I._
  15. 15_DEFINITIONS_
  16. 16DEFIN. I.
  17. 17DEFIN. II.
  18. 18DEFIN. III.
  19. 19DEFIN. IV.
  20. 20DEFIN. V.
  21. 21DEFIN. VI.
  22. 22DEFIN. VII
  23. 23DEFIN. VIII.
  24. 24_AXIOMS._
  25. 25AX. I.
  26. 26AX. II.
  27. 27AX. III.
  28. 28AX. IV.
  29. 29AX. V.
  30. 30AX. VI.
  31. 31AX. VII.
  32. 32AX. VIII.
  33. 33Introduction to Readers of quick Wit and good Understanding not yet
  34. 34_PROPOSITIONS._
  35. 35_PROP._ I. THEOR. I.
  36. 36_PROP._ II. THEOR. II.
  37. 378.
  38. 38Book might be made to converge and meet again at the distance of six
  39. 39Book upon a Sheet of white Paper much after the manner of the second
  40. 40_PROP._ III. THEOR. III.
  41. 41_PROP._ IV. PROB. I.
  42. 42_PROP._ V. THEOR. IV.
  43. 43_PROP._ VI. THEOR. V.
  44. 44NG × CG
  45. 45_PROP._ VII. THEOR. VI.
  46. 464
  47. 47Part of half the Aperture of the Glass, or 55th Part of the whole
  48. 48Part of six Feet and an Inch (the distance between the Lens and the same
  49. 4955
  50. 504
  51. 514
  52. 527.
  53. 532.
  54. 543.
  55. 556
  56. 56Part of the violet which was next the indigo; and sometimes I could see
  57. 572
  58. 58Part of their whole distance from it. And the Diameter of the Circle in
  59. 59Part of the Diameter of the Aperture of the Glass. And if you add the
  60. 605
  61. 61_PROP._ VIII. PROB. II.
  62. 62THE FIRST BOOK OF OPTICKS
  63. 63_PART II._
  64. 64_PROP._ I. THEOR. I.
  65. 65_PROP._ II. THEOR. II.
  66. 66_DEFINITION._
  67. 67_PROP._ III. PROB. I.
  68. 68_PROP._ IV. THEOR. III.
  69. 69_PROP._ V. THEOR. IV.
  70. 70Part of the Colours by the interposed Tooth, whilst the rest of them
  71. 71Book, and let the same be viewed through a Prism _abc_, held parallel to
  72. 72_PROP._ VI. PROB. II.
  73. 73_PROP._ VII. THEOR. V.
  74. 74_PROP._ VIII. PROB. III.
  75. 75_PROP._ IX. PROB. IV.
  76. 76_PROP._ X. PROB. V.
  77. 77Book, you place Bodies of several Colours, you will find, as I have
  78. 78Book. In this Proposition I content my self to have put it past dispute,
  79. 79_PROP._ XI. PROB. VI.
  80. 80THE
  81. 81SECOND BOOK
  82. 82OF
  83. 83OPTICKS
  84. 84_PART I._
  85. 8513
  86. 863
  87. 872
  88. 882
  89. 894
  90. 904
  91. 914
  92. 9212
  93. 932
  94. 944
  95. 952.
  96. 964
  97. 975
  98. 985
  99. 992
  100. 1005
  101. 101THE
  102. 102SECOND BOOK
  103. 103OF
  104. 104OPTICKS
  105. 105_PART II._
  106. 106/ \
  107. 107THE
  108. 108SECOND BOOK
  109. 109OF
  110. 110OPTICKS
  111. 111_PART III._
  112. 112PROP. I.
  113. 113PROP. II.
  114. 114PROP. III.
  115. 115PROP. IV.
  116. 116PROP. V.
  117. 117PROP. VI.
  118. 118PROP. VII.
  119. 119PROP. VIII.
  120. 120PROP. IX.
  121. 121PROP. X.
  122. 122Book, I shall conclude this part with a few more Propositions. Those
  123. 123PROP. XI.
  124. 124PROP. XII.
  125. 125DEFINITION.
  126. 126PROP. XIII.
  127. 127PROP. XIV.
  128. 128PROP. XV.
  129. 129PROP. XVI.
  130. 130PROP. XVII.
  131. 131PROP. XVIII.
  132. 132PROP. XIX.
  133. 133PROP. XX.
  134. 134THE
  135. 135SECOND BOOK
  136. 136OF
  137. 137OPTICKS
  138. 138_PART IV._
  139. 139Book appeared between the Object-glasses, and upon Bubbles of Water, but
  140. 14062
  141. 141THE
  142. 142THIRD BOOK
  143. 143OF
  144. 144OPTICKS
  145. 145_PART I._
  146. 1469
  147. 14750
  148. 14817
  149. 14910
  150. 15021
  151. 15131
  152. 15232
  153. 15345
  154. 15455
  155. 15563
  156. 156Part of an Inch, and falling upon the Paper makes the Fringes of the
  157. 157Book. And then I found that the Shadows of all Bodies held in the
  158. 158Book _De la Lumiere_. This Crystal is a pellucid fissile Stone, clear as
  159. 159Part of an Inch, will go through that Surface, and through the Air or
  160. 160Part of the second Book. But, if the second Glass be taken away, the

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