## Encyclopedia >

Article Content

Warning: include(/home/kidsnetau/encyclopedia/wiki/tero-dump/wikipedia/na/) [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/na/' 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
 Wave ... called travelling waves, and have a disturbance that varies both with time t and distance z. This can be expressed mathematically as: [itex]y=A(z,t) \cos (\omega ...