 | Size | Height 292 mm, width 201 mm. | | Comments | Written by Galileo; contains drawings, minimal texts, calculations, tables. Relation to the Discorsi: related to pf. | | References | Wisan 1974 189; Drake 1978 96-97; Drake 1990 frontispiece, 14, 18, 20 -31, 92-93, 99 ; Drake 1987 42-46, plate 5, plate 7, 48-50, 54 |
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| | | Folio 189 v (final text) | | 1 | | | 2 | tempus per ac ad tempus per ab habet rationem compositam ex ca, ab et da ad as. | | 3A | si diameter ab sit 4000, arcus bd conficitur temporibus 62 | | 3B | perpendicularis cuius longitudo 48143, conficitur tempore 280. | | 4 | tempus ba ad t[empus] ad ut ba ad ad | | C01 | 13 + 530 + 320 + 180 + 95 + 320 + 530 = 1988
1988 : 16 = 124 | | C02 | (100000 * 6700) : 27834
100000 * 6700 = 670000000
670000000 : 27834 = 24071
| | C03 | 48143 * 4000 = 192472000
sqrt 192472000 = 13873
4/7 | | C04 | | ae | 19 | 9 | | ad | 4 | 6 | | ab | 10 | 15 | | ac | 18 | 18 |
| | C05 | ac [quadratum] 324
ab [quadratum] 225
324 * 4 = 1296
225 * 9 = 2025 | | C06 | (4000 * 280) : 13873
4000 * 280 = 1120000
1120000 : 13873 = 80 2/3 | | C07 | (131 * 180) : 100
131 * 180 = 10480 + 131[00] = 23580
23580 : 100 [= 235 80/100] | | C08 | (18 * 4)
(10 * 6)
[18 * 4 =] 72
[10 * 6 =] 60 | | C09 | 20 * 4 = 80
12 * 6 = 72
80 * 108 = 8640
| | C10 | 1600 : 4 = 400
ca [quadratum] 400
1296 : 9 = 144
ab [quadratum] 144 | | C11 | ac [quadratum] 324
ab [quadratum] 225 | | C12 | | longitudine | | tempus | | ac | 20 | 20 | | ab | 12 | 18 | | ae | 9 | 9 | | ad | 4 | 6 |
| | C13 | ca [quadratum]
400
144 [quadratum]
ab |
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