Encyclopedia > Needle

  Article Content

Needle

A needle is a long, slender, object with a pointed tip, usually made of metal, used in sewing, injecting or extracting liquids, indicating on a dial, or playing back music recorded on a vinyl disk.

The format of the needle varies according to its purpose. Sewing needles have a hole in the shaft to carry thread, either at the pointed tip for machine sewing needles, or at the non-pointed end, for hand sewing.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Quadratic formula

... qualitatively different cases: If the discriminant is zero, then there is a repeated solution x, and this solution is real. (Geometrically, this means that the parabola ...

 
 
 
This page was created in 31 ms