of the world began weaving linen at least several thousand years ago. [ ] early history[ edit ] the discovery of dyed flax fibers in a cave in georgia dated to years ago suggests that ancient people used wild flax fibers to create linen-like fabrics from an early date. [ ] [ ] fragments of straw, seeds...
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filled with water as a means of irrigation. modern drip irrigation began its development in germany in when researchers began experimenting with subsurface irrigation using clay pipe to create combination irrigation and drainage systems. research was later expanded in the s to include the application...
filled with water as a means of irrigation. modern drip irrigation began its development in germany in when researchers began experimenting with subsurface irrigation using clay pipe to create combination irrigation and drainage systems. research was later expanded in the s to include the application...
filled with water as a means of irrigation. modern drip irrigation began its development in germany in when researchers began experimenting with subsurface irrigation using clay pipe to create combination irrigation and drainage systems. research was later expanded in the s to include the application...
filled with water as a means of irrigation. modern drip irrigation began its development in germany in when researchers began experimenting with subsurface irrigation using clay pipe to create combination irrigation and drainage systems. research was later expanded in the s to include the application...
filled with water as a means of irrigation. modern drip irrigation began its development in germany in when researchers began experimenting with subsurface irrigation using clay pipe to create combination irrigation and drainage systems. research was later expanded in the s to include the application...
filled with water as a means of irrigation. modern drip irrigation began its development in germany in when researchers began experimenting with subsurface irrigation using clay pipe to create combination irrigation and drainage systems. research was later expanded in the s to include the application...
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w tungsten ta tantalum re rhenium sb antimony li lithium ruthenium ruthenium was identified in by osann in the leach residue of a platinum ore from the urals. the element in the metallic state was isolated by klaus in . the name is derived from ruthenia, which is the latin name for russia. ru ruthenium...