when was artificial respiration invented
natural fibre are obtained from nature but artificial fibres are man made fibre
the artificial leg was invented in 1909 a whale bone
That would be any fibre not found in nature. Rayon and nylon are artificial fibres.
Both, actually. There are both kinds of bags available.
Optic Fiber was invented in 1955
in 1938
in Canada
An artificial Christmas is artificial fir and pine tree. There are also aluminum and fiber optic trees. The first artificial Christmas tree was made by the Germans during the 19th century.
Natural silk is a proteinic fiber (sericin and fibroin).
God?
Charles Babbage,1938