A comprehensive metabolic panel (CMP) is a blood test that provides information about: 1  how the kidney and liver are functioning. 2  sugar (glucose) and protein levels in the blood. 3  the bodyâs electrolyte and fluid balance.
The ancient Egyptians dug a long canal called Bahr Yousuf to bring water from the Nile to the Faiyum Depression for irrigation. Egyptians developed a system of Nilometers at various points along the valley. This was helpful in comparing past and present water levels. Water storage was not attempted by the Egyptians.
Several of the 11 aqueducts of ancient Rome, constructed between 312 B.C. and 226 A.D., carried water all the way from Tivoli, about 43 miles (70 km) away [source: Antiquities ]. The longest of the aqueducts, Anio Novus, was nearly 60 miles (97 km) in length [source: InfoRoma ].Â­ncient Aqueducts. To achieve a consistent, shallow slope to move the water in a continuous flow, the Romans lay underground pipes and constructed siphons throughout the landscape. Workers dug winding channels underground and created networks of water pipes to carry water from the source lake or basin into Rome.