Some fish can make electricity. They surround themselves with an electrical field. If anything moves in the field, the fish can feel it. Their electrical fields are able to detect food and their enemies.
Developers find natural solution to drainage woes
Developers find natural solution to drainage woes Developers in Guelph, Ontario, are using trees,
shrubs and plants to create a successful drainage system on a flat
land area of the Pine Ridge residential project. The trees and
foliage ensure that the water drains properly, and act as a
pre-filter system for storm water before it reaches the underground
aquifier. 13 JULY 1999
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