Barbed wire
device · 1874 · Electric age
Wire with barbs for fences (Glidden).
Inventors: Joseph Glidden, Lucien B. Smith.
What it is made of
- Twisted steel wire — has part. Two twisted wires.
- Wire barbs — has part. Short lengths strung on a thread.
Principles and materials it uses
- Steel — is made of. Steel wire.
- Wire drawing — uses. Wire is made by drawing.
- Galvanization — uses. The wire is galvanized.