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CONTENTS
| Page | ||
|---|---|---|
| IX. | 9th Proposition: Reflection in concave mirrors when the eye is at the center of curvature | 335 |
| X. | 10th Proposition: Reflection in concave mirrors (convergence of rays) when the eye is placed at the periphery | 335 |
| XI. | 1st and 2nd Problem: Cylindrical concave mirror. Cylindrical-convex folding mirror. Concave-convex folding mirror | 337 |
| XII. | 3rd Problem: The polytheoron a multi-view mirror apparatus (flat folding or flat angular mirror, diptychon katoptron mirror diptych) | 343 |
| XIII. | 4th Problem: The trick mirror (concave-convex mirror, incomplete) | 347 |
| XIV. | 5th Problem: The theatrical mirror (five-part angular mirror) | 349 |
| XV. | 6th Problem: Katoptron opisthion back-view mirror | 351 |
| XVI. | 7th Problem: The street mirror (the so-called spy mirror) | 353 |
| XVII. | 8th Problem: The polygonal mirror (angular mirror on a pentagon) | 357 |
| XVIII. | 9th Problem: The ghost mirror | 357 |
D. HERO'S CATOPTRICS.
Greek Fragment.
| Hero's 4th Proposition | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 369 |
E. FROM VITRUVIUS' ARCHITECTURE.
| 1. | The machine and its types | 375 |
| 2. | The crane with 2 masts | 377 |
| 3. | The rotating crane with one mast | 381 |
| 4. | Composition of linear and circular motion. Lever. Steelyard. Steering oar | 383 |
| 5. | Oil chamber and oil presses | 387 |
F. FROM PLINY'S NATURAL HISTORY.
| Olive presses | . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 389 |
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