g Washington
they were built in the 10th century during the Song Dynasty (:
The first mechanical cooling system was invented by Dr. John Gorrie. -Qwasas
canal irrigation system is required very long time span. it aslo requires great labour. The system also requires large amount of money. the land areas and soil has to be utilized and modified for this system. there is a great chance of over flow in the canal which can led to a flood. canals carry huge amount of slit which can also damage the crops if in excessive amount.
Archimedes
The Chinese invented the canal lock in the 10th century..
No. It is in New York state.
The Hohokam Canal System.
Alimentary Canal
Andrew Yarraton
The Hohokam Canal System
Th Ampex Company invented the videotape recorder in 1956.Th Ampex Company invented the videotape recorder in 1956.
g Washington
Lost in history, although if their was a specific time period it woud be sometime during the mesopotamia time period where the fertal cresent was.
Alimentary Canal
I will say the chinese.
Egyptian people