A solar caculator is a caculator that uses solar power energy to work.
It may depend upon the early civilization referred and their records thereof. Anyway, here are some of the ancient devices chronologically listed below. pebbles and stones counting boards counting rods abacus
I get 6.
use a caculator 80
0.2083
an abacus
A solar caculator is a caculator that uses solar power energy to work.
the einstein caculator was used to figure out very trick mathletics.
1.06
A solar caculator is a caculator that uses solar power energy to work.
by using Greek methods and Greek numbers or some type of Greek caculator
The Abacus.
The Abacus.
It is a device used for counting in ancient times
abacus
rays
answer