Size |
Height 198 mm, width 135 mm. |
Watermark |
Pilgrim. Drake's identification: Watermark type 21a. Drake's description: Pilgrim in 40mm circle, crown above. Watermark found in 1622-31. Found in manuscripts 1626-30 (notes for Dialogue). |
Comments |
Written by Galileo; contains text, drawings, table, calculation. Relation to the Discorsi: elaboration of 2/37-pr-15. |
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Folio 55 r (final text) |
1
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Quaeritur in ac pars aequalis ab, quae conficiatur tempore aequali tempori per ab. Ponatur ad aequalis ab, et circa ac semicirculus describatur, et ponatur af aequalis dimidiae dc, et ab f demittatur perpendicularis fe, et eg ponatur aequalis ab: dico, eg ex quiete in a confici eodem tempore ac ab, med[i]a proportionalis inter ca, ag. |
C01
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(40 * 40) : 140 40 * 40 = 1600 1600 : 140 = 11 3/7 |
C02
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60 + 11 1/2 = 71 1/2 |
C03
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60 * 41 2/3 = 2500 |
C04
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2460 + 40 = 2500 sqrt 2500 = 50 |
C05
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(20 * 20) : 60 20 * 20 = 400 400 : 60 = 6 2/3 60 * 46 2/3 = 2760 + 40 = 2800 sqrt 2800 = 52 [53?] |
C06
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25 * 25 = 625 |
C07
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100 * 56 1/4 = 5600 + 25 = 5625 sqrt 5625 = 75 |
C08
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140 * 71 1/2 = 140 + 9800 + 70 = 10010 sqrt 10010 = 100 |
C09
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(28 1/2 * 28 1/2) : 100 |
C10
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784 + 18 = 802 |
C11
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ac 16 cd 5 |
C12
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| ac | 60 | 100 | 140 | | ad | 40 | 50 | 60? | | ci id af | 10 | 25 | 40 | 1 2/3 | ae dg | 67? 2/3 | 6 1/4 | 11 3/7 | | ga | 46 2/3 | 56 1/4 | | | ai | 52 1/2 | 75 | | | ci | 7 1/2 | |
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