Pennethorne, John; Robinson, John [Ill.]: The geometry and optics of ancient architecture: illustrated by examples from Thebes, Athens, and Rome (London [u.a.], 1878)

Part. III.Plate IV

The calculated horizontal Curvature of the Lines in the upper Step oe

the Parthenon and Temple of Theseus.

rtseofauive -/i'3

rise ofcurve 1C3



ri.se of cLU-vc -07 Bz

>i$& ofd u ~ve ■ 183

ri.se of carve 103

2. rise of curve. -0"i

-----------------------45- 001 — length* of ugper step

Fi|S. 2. Plan of the Temple of Theseus.

___________ 101 ■ 330 = length, at' ufipei ■ step

Fi£. 1. Plan of live Parthenon.

■tS 3

Fi<5.3. Tke Curve of ike Upper step of the Parthenon on the South side and East portico

lit

ii:

■5

57- 035 ______________________________->,

_________________ 85-5525 ___________'-----------------------------

114-07 = tiaJf th& length, of-upper stef
228 ■ 14-1 >— Whole- length, of upper1 step

*%■

HORIZON



-EqiiaMfji/ to the circle
refevreci to ih& <:<?sitr-& CO -

V

17573 -11
308816311 ■ SOW

y =0 CO — 17573 ■ 11

y =28-5175 co =17573-14

y = 57 ■ 035 00 = 17573 ■ 1

'y =85-552 CO =17572-36

"y =1/4-07 a> =17572-8

y minus 0 iw
-» -17572-8
oives the orobuiales
mexxsuj-ert Orant t}ie
chord Bm. tothe appa
step.

Fio.4. The curved lines in the Pediment and the Entablature of the Parthenon.

5'

■22 rise cfearve

..5... 50-668 == half the l&ialh. of Tapper step

whole' lenxpZh/of architrave' = 10C-3Z6.

Fi£. 5 . The Curve of the Upper step of the Temple of Theseus.

"*•<• ef curve -1>J5



§4

»5

JB £

01 rise of curve*

\______________________ 22-505

hex If length; of upper step

<^>A,

" »*^W^ cU.

#.<jr<&&&, MA. Lottie c/g: ^ncdme^.d