8 sentences with “irrigation”

3. Crop irrigation, which occurred in an organised way sometime around the same time in Mesopotamia.

For example, Rome adopted Persian irrigation techniques, and Persia adopted Roman engineering techniques.

They created massive irrigation systems, which made Mesopotamia almost on a par with Egypt as the richest farmland in the world.

- Mathematics: without mathematics there can be no advanced engineering, and without engineering there can be no irrigation, walls or great buildings.

Man can destroy the soil by cutting down trees, by neglecting irrigation, by demanding more yield (continuous sowing) than the soil can give, by not providing manure or fertilisers.

Priests probably led efforts to build irrigation systems and made decisions about city building and rebuilding, since they had a monopoly on explaining the great forces at work in human life.

In order to contribute to optimal muscle irrigation, other areas of the body undergo vasoconstriction: the face becomes pale, blood pressure rises, the heartbeat quickens, the pupils dilate and the small muscles under the hair follicles contract, resulting in the so-called "goose bumps".

One common theory is that they may have originally come together to coordinate the need for irrigation systems; the Tigris and Euphrates rivers are notorious for their unpredictable floods, so it took much human effort to create the dykes and canals needed to divert floodwaters and irrigate agricultural lands near the rivers.