907,486,250 Kilometers - Basic Length (very conservative figure)
times 2,529,600 Kilometers - Basic Width
equals 2.295577218 (+/-) x 10(15) Square Kilometers
times 0.740 (less 13.00% of basic width each side)
»» Sides beyond the habitable surface areas are devoted to absorption
and amplification of sunlight, and to structural integrity fields.
There are also several hundred million sunlight gathering stations
within the habitable areas. Even though the amount of sunlight they
absorb is filtered by the inner ring, these stations -- backed by
super-amplifiers under the surface -- provide plenty of power.
equals 1.698727141 (+/-) x 10(15) Square Kilometers total surface area
times 0.274036138 (less all major-minor bodies of water, which make up
72.58638620 % of the total available surface area)
equals 4.655126253 (+/-) x 10(14) Square Kilometers land area only
divided by 148,940,000 (Earth's actual land area in square km.)
equals 3,125,504.3999135 (+/-) times Earth's land surface area.
Ringworld Thickness -- At least 256.371 Kilometers (159.301555 +/- miles)
»» Underneath the land surfaces, as well as under the ocean floors,
there is topsoil and hard rock, each with abundant minerals.
Also, there are quadrillions of kilometers (and more) of tunnels
for the flow of water, as well as for the distribution of greatly
re-amplified solar power.
Also below are quadrillions of kilometers (and more) of fiber
optic cables, carrying a mix of television, internet, telephone
and ringworld control data signals. Given all the underneath
space, the fiber cables themselves can be much larger in
diameter than their "old Earth" counterparts, and can carry
information at greater speeds and capacities without signal
loss or external interference, as is the occasional case with
above-ground wireless systems.
RINGWORLD
POPULATION ... 1,009,824,161,585 (+/-), approx 0.002169273418 (+/-)
persons per square kilometer (land only)
SPECIAL NOTE: Each ethnic category shown herein is defined
as follows ...
Persons who are primarily (50% or better)
classifiable as the listed ethnic type.
Euro-Caucasian .............. 24.37 % | 246,094,148,178
-- --
Western - 80.9043 % | 199,100,747,925
Eastern - 19.0957 % | 46,993,400,254
Chinese Asian ............... 12.29 % | 124,107,389,459
-- --
Taiwan - 70.6894 % | 87,730,768,964
Old Mainland - 15.3026 % | 18,991,657,379
Hong Kong - 14.0080 % | 17,384,963,115
Asian Indian ................ 10.98 % | 110,878,692,942
Black African ............... 10.21 % | 103,103,046,898
Middle Eastern .............. 9.01 % | 90,985,156,959
Other African ............... 7.42 % | 74,928,952,790
Other Asian ................. 6.08 % | 61,397,309,024
South American .............. 3.14 % | 31,708,478,674
Japanese Asian .............. 2.21 % | 22,317,113,971
Korean Asian ................ 1.98 % | 19,994,518,399
Vietnamese Asian ............ 1.59 % | 16,056,204,169
Native American ............. 1.24 % | 12,521,819,604
Central American ............ 1.15 % | 11,612,977,858
Native Pacific Islander ..... 0.36 % | 3,635,366,982
Native Atlantic Islander .... 0.25 % | 2,524,560,404
Other Groups ................ 7.72 % | 77,958,425,274
RINGWORLD
POPULATION ... 1,009,824,161,585 (+/-), approx 0.002169273418 (+/-)
persons per square kilometer (land only)
ACTUAL (approx.)
EARTH POPULATION: 8,045,311,447 .. 54.017130704+ per sq km (land only)
difference 24,901.024634932+ greater density as of
November 29th 2023
For the Ringworld population density of 0.002169273418 (+/-) to apply
to actual Earth land areas, the current total world population would
have to be approximately 323,092 persons.
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