Overview Level of Folio 77 r

 Size Height 242 mm, width 176 mm. Watermark Radiant sun in 44mm circle (form 1) . Watermark not noticed by Drake. Comments The folio is part of a larger sheet of paper combining the folios 76 and 77 . Written by Galileo; contains text, drawings, calculations, table. Relation to the Discorsi: work on 2/34-pr-13. References Drake 1978 497
Folio 77 r (final text)
1B seu si [rectangulum] aib cum [quadrat]o ib, sit [a]equale [rectangulo] nia cum [quadrat]o ia
1C seu si (dempto communi [rectangul]o nia), [rectangulum] bnia cum [quadrat]o bi sit equale [quadrat]o ia;
1D [rectangul]o cla cum [quadrat]o la, seu si [rectangulum] aib cum [rectangul]o cax, sit [a]equale [rectangul]o cld cum [quadrat]o la
C01 2716 2/3 : 60 = 8150 : 180
8150 : 180 = 45
C02 100 : 18 = 5
10/18 = 5/9
C03 145 5/18 * 100 = 145000 + 25 + 2 7/9 = 14527 7/9
sqrt 14527 7/9 = 120 128/240
C04 (100 * 25) : 60
100 * 25 = 2500
2500 : 60 = 41
C05 27 1/6 * 60 = 1620 + 10 = 1630
sqrt 1630 = 40 30/80
C06 41 2/3 + 100 [= 141 2/3]
C07 141 2/3 * 100 = 14100 + 67 = 14167
sqrt 14167 = 119 6/138
C08 45 5/18 * 100 = 4500 + 28 = 4528
sqrt 4528 = 67 39/134
67 * 67 = 4489
[4528 - 4489 =] 39
C09 4100 + 67 = 4167
sqrt 4167 = 64 71/128
64 * 64 = 4096
[4167 - 4096 =] 71
13 * = 78
3_2_9
C10 60 * 25 = 1500
sqrt 1500 = 38 56/76
38 * 38 = 1444
[1500 - 1444 =] 56
1444 : 17
C11 3/4 + 3/7
3 * 7 = 21
3 * 3 = 12
21 + 12 = 33
4 * 7 = 28
+ 4
9 1/2 + 6
C12 mediam xba 120 1/2
mediam rab 67 1/4
tempus per ab 53 1/4
tempus per ao 40 3/8
tempus per totam 93 5/8
53 1/4 + 40 3/8 = 93 5/8
C13 oa 25
ax 41 2/3
mediam xba 119 6/138
mediam rab 64 4/7
tempus per ab 54 3/7
tempus per ao 38 3/4
tempus per totam 93 1/4
54 377 + 38 3/4 = 93 1/4
C14
 ab 10 80 bc 8 ad 12 72 dc 6 ab 11 99 bc 9 ad 14 84 dc 6

 Overview Level of Folio 77 r