Encyclopedia >

  Article Content

Warning: include(/home/kidsnetau/encyclopedia/wiki/tero-dump/wikipedia/li/) [function.include]: failed to open stream: No such file or directory in /home/kidsnetau/encyclopedia/wiki/tero-dump/wikipedia/index.php on line 210

Warning: include() [function.include]: Failed opening '/home/kidsnetau/encyclopedia/wiki/tero-dump/wikipedia/li/' for inclusion (include_path='.:/usr/share/pear:/usr/share/php') in /home/kidsnetau/encyclopedia/wiki/tero-dump/wikipedia/index.php on line 210


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
Camera obscura

... by building a box and punching a hole in one of the walls - voilą! With a small enough aperture, light from only one part of a scene can strike any particular part of the ...