The Eiffel Tower (/ËaÉªfÉl ËtaÊÉr/ EYE-fÉl TOWR; French: Tour Eiffel, pronounced: [tuÊâ¿ÉfÉl] listen) is a wrought iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower.
A remote sensing technique that monitors the electrical resistance of soils in a restricted volume near the surface of an archaeological site; buried walls or features can be detected by changes in the amount of resistance registered by the resistivity meter.
Tensiometers are available in lengths ranging from 6 to 72 inches, allowing installation in the soil at various depths. A single tensiometer measures existing soil moisture conditions only at the depth of the porous tip, and cannot monitor conditions above or below this point. Two or more tensiometers of varying lengths may be installed at one site in order to monitor soil moisture conditions at more than one depth within the root zone. Soil Water Suction