Encyclopedia > List of tunnels

  Article Content

List of tunnels



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
Direct bandgap

... space (see E-k plots[?]). A semiconductor with a direct bandgap can be used to emit light. Indirect bandgap semiconductors such as crystalline silicon cannot. The prime ...