, , , . . , , . . , , , , , 1862., .

. (Johnson's Georgetown and the city of Washington)
, ( ) 20- . (George Mason), . , . . , , . , , . - , - . 33- , - 16- , .

, , - , , - K. .

19- , , - 13- , - 19- 13- . , .

.
, . , .

, , , . 1.732 (AB, AC, BD ..) 1.732' . HD . . . (AE BE) 2.646 . 2.646 . () 3.464 . 3.464 12.

FH G AE . FG: GH 1:2. CB :
CF: FG: GH: HB = 3: 1: 2: 3
AE , :
AG: GJ: JE: = 5: 4: 6
:
CI: IJ: JK: KL: LD = 5: 3: 4: 3: 5

J K, , , JK - , , .

(M) ( ), (N O) , .

, . , 1.618 . , φ 1.618 .
. :
.618:. 372:.618 .618/.372 = 1.618 .618 +.372 = 1
1/.618 1.618
1.902 , :
.7265:. 449:.7265 ♦.7265/.449 = 1.618 ♦.7265 +.449 = 1.1755 ♦ 1.1755/.7265 1.618.
72 , 54 . 36 - 54 - 90 . , 3:4:5. , mr .
, .
, 1 .

13 , , 13 , 13 , , 13 , 13 .
13 . 13 16- .
, 1791, , , . - , , .
- - , 14.142 . 43 455 ( 0,525 ), , . 481.13 , 5280 (1 ) 0.0911231 . 3 960 , 0.0911231 43 457. 3023 , 5280 0.5725 . 24 880 , 5725 = 43 458. 3960 ( ) 14.142 = 280 ( ). 24 880 ( ) 14.142 = 1 760 ( ).
:
3 960 20 908 800 , 1.718 = 12 170 430 ( )
12 170 430 , 43 455 = 280 .
24 880 131 366 400 , 1.718 = 76 464 726 ( )
76 464 726 , 43 455 = 1 760 .
http://geolines.ru/publications/HISTORICAL-GEODESY/HISTORICAL-GEODESY_16.html