 | 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 | 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 | (40 * 40) : 140
40 * 40 = 1600
1600 : 140 = 11 3/7 | | C02 | 60 + 11 1/2 = 71 1/2 | | C03 | 60 * 41 2/3 = 2500 | | C04 | 2460 + 40 = 2500
sqrt 2500 = 50 | | C05 | (20 * 20) : 60
20 * 20 = 400
400 : 60 = 6 2/3
60 * 46 2/3 = 2760 + 40 = 2800
sqrt 2800 = 52 [53?] | | C06 | 25 * 25 = 625 | | C07 | 100 * 56 1/4 = 5600 + 25 = 5625
sqrt 5625 = 75 | | C08 | 140 * 71 1/2 = 140 + 9800 + 70 = 10010
sqrt 10010 = 100 | | C09 | (28 1/2 * 28 1/2) : 100 | | C10 | 784 + 18 = 802 | | C11 | ac 16
cd 5 | | C12 | | | 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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